Timing chain bent valves. new stretch bolts, re cleaned all mounting .

Timing chain bent valves. I now only have compression in two cylinders.

Timing chain bent valves Ended up having to replace all 8 exhaust valves and four Please send us your VIN number when placing your order, as there are a couple variations of the timing chain guides depending on year. Took to VIP - not reliable due to age of "mechanics" told by many sources. but Ive read and learned a lot here. Its time to open the top end and see what's destroyed. Failure of the chain will cause severe engine damage, as the engine valves are no longer synchronized, allowing them to strike the pistons, causing damage to Mar 2, 2023 · TT (Mk2) Discussion - Timing chain or bent valves? - About a year about I was driving around doing some errands, when sudden my car start miss firing, I pulled over to the side and turn the car off. Once we put on the new timing chain, we'll do a compression test to see if any valves are bent. You could try to alleviate this A real valve job would cost a good amount of money to do; as it requires a number of manhours to complete disassembly and reassembly plus machining of the head components themselves. Another way is to inspect the damage inside the cylinders visually. With that, my pistons might also be damaged. The only way for a KA to have bent valves is if it floated a valve or the timing chain jumped. The contact was informed that the engine needed to be replaced. I'm amazed on how much just the timing chain adjusters, adjuster valves and Tensioners cost! Oct 20, 2021 · Came back to it a few days later, pulled the valve cover off, lock tools in and cams were out ever so slightly, thought maybe I over tensioned as the 0. 0 Turbo timing chain issues, bent valves commom? Jump to Latest 2. ins and out of replacing determining bent valves and replacementcorrections in video rear bank at fire wall is bank 1, radiator side bank 2. The damage was done when the belt broke. Timed to each of the three marks with cylinder #1 at top dead center. Put it back together and runs great. If this is indeed true, is the AJ16 engine an interference engine or not? I. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Update: Jumped timing chain = bent valve Oct 4, 2024 · Below is a more detailed review of the possible causes of a bending or defective engine valve. How to Test Bent Engine Valves. mechanic told me this is the worst built vehicle he has ever seen. The problem was the upper timing chain tensioner was seized and caused the timing chain to chew through the lower cover. Issues With Timing Belt or Chain Failure. The machanic said the timing chain had broke and it bent the valves of the motor. He went to move it today and it started and died. Jan 5, 2021 · Not necessarily. Mar 14, 2023 · However, some LS V8 engines used by GM only contain a single exhaust and intake valve per cylinder, giving you a total of 16 valves. $3,700 on the high end. ) The timing belt was an original Honda part, didn't have any missing teeth and it surely couldn't have jumped a sprocket or two without being obvious on inspection now. The heavier crankshaft will continue rotating by inertia, moving pistons up and down. Customer: Hi, I have a 2010 Chevy Equinox 2. Generally, the belt or chain plays a significant role in syncing the motion of the engine’s valves and pistons. Oct 4, 2024 · The leading causes of this car issue include over-revving your car engine, timing chain or belt failure, overheating, and inadequate lubrication. This could lead to significant damage, including bent or broken valves , and even damage to the cylinder. I'm redoing my heads on a 2. I now only have compression in two cylinders. Few photos are attached for any reference and advice cheers Apr 1, 2008 · 2006 M6 QS 18s,LPE CAI,Magnaflow catbacks,Stainless Works LTs w/ hi-flo Cats,HPE S cam,N-Motion Dbl Chain, CNC'd 243s by Flowtech Induction,2. Went back to car, tried ether to get car to catch. Major engine surgery is in the future, no way around it. Mechanics check for bent valves by performing a leak-down test of each cylinder or by checking the valve gaps. 3 is non-interference as i recall, you may get lucky. Mechanic replaced belt, and found zero compression on cylinder #3. highly unlikely you have bent valves if i think about it again because of equal compression numbers. Here's my question? Mar 24, 2008 · He found one exhaust valve on #2 cylinder to be bent. The vehicle was repaired; however, the failure recurred. Jul 16, 2023 · It does not mean you have not damaged the engine from a broken timing chain. Apr 14, 2021 · So I pulled a valve cover, and immediately saw that all of the intake pushrods were bent into boomerangs. After inspection, they're telling me that the engine has bent valves, but the timing chain is in-time. If you get lucky and there is no damage beyond the timing chain/sprokets, it is possible to replace the timing chain w/o removing the head. My chain broke and after replacing it and getting the car running there is a serious missfire in cylinder 4, I am about remove the left bank cylinder head (driver side) and change out the exhaust valves, they are bent. I needed to replace the motor, however, this is an extremely pricey repair and I have not repaired yet. Jan 14, 2024 · My wife took the car one day and when she got home a loud clunking noise was coming from under valve cover towards pass. To test for a bent engine valve, the ideal check would require you to remove the cylinder head and take a physical look at the valve. Feb 14, 2013 · Gaz, you keep saying you never messed with the timing. the bank one Apr 3, 2017 · hard to know, but it could have bent valve, only thing you can do is pull plugs, back off rockers and do a leak down to know for sure. Mar 4, 2017 · You don't need an engine. VIP says timing chain snapped and valves bent. 7 Hemi. Jul 3, 2020 · The plastic/nylon guide plates on the chain tensioner fail, causing the chain to slip, or come loose and fall into the area between the sprocket and chain, causing timing chain failure. Assuming the guy who installed the new belt did it correctly, then I don't see the problem. It would have been much cheaper for him to have had the timing chain and guides and tensioner replaced according to recommended maintenence. Has the timing chain tensioner on your 2. A lot of people never replace the chain when doing the tensioner. Jul 2, 2023 · 2012 Equinox 2. Jan 8, 2023 · It is quite simple to bend a valve on an interference engine if the timing belt or timing chain is replaced but the engine is not timed properly. Mar 21, 2022 · Timing belt went on my ‘09 charger SXT with a 3. 8, 2. Maybe a little valve noise, but a huge blessing! replaced the flywheel (was separating from the harmonic balancer) flywheel seals and other o-rings for another $100, but really this was not a bad job. It may also happen if the timing belt slips and moves the camshafts and valves out of alignment. E. 7T V6 Discussion - Messed up cam chain timing, bent valves - Hi everyone, this is my first post. Here's what I did: Replaced Spark Plugs Replaced Cam Position Sensor Removed Intake Removed turbo Removed head Checked valves- all were seated and none were bent from what I could tell. ) Fortunately it just bent a valve a small bit (or it wouldn't run). Jan 8, 2023 · When there is a significant issue with the timing of the engine, a bent valve occurs. Anyways, everything is being fixed for about 3 grand Jul 19, 2013 · A leakdown test is foolproof if done correctly. In extreme cases, the pistons may get damaged as they meet the valves, and the valve would also get bent. So I have 2 questions My truck is an 07fx4 with the 5. May 28, 2016 · So, audi did my comoression test for free 0 comoression in all cylinders. I got it for a deal because the cam chain tensioner half moon gaskets and valve cover gaskets were leaking. Smoking from hose over battery. Replacing the timing chain is a three step process. Hopefully it didn't damage the piston bad enough to do anything worse. Either the chain broke and took out the cam gear or vice versa. Feb 5, 2008 · I have a 98 Jeep Wrangler 2. More than likely it bent all the intake valves. Common problem with the VW Volkswagen 2. 6-16 valve Fed 235/15s Home made Rear 2" lift 5 Speed 2000 Tracker 4x4 4 door 2. The contact was informed that the timing chain had failed and bent the valves. You mentioned that the timing chain still appears OK and has tension, but since the engine will not start it would appear to me that the timing chain or crankshaft drive gear has skipped and allowed the Nov 30, 2015 · The level of damage caused by a broken timing belt can depend on the type of engine you have in your car. This problem may cause the engine to halt while driving, and it is pretty dangerous. 4L) - 5. I would recommend removing any broken parts that could cause additional damage. This, of course, relies upon the fact that the engine in question is of an interference design, which describes any engine in which improper timing can result in piston/valve contact. The engine components won’t move properly with a broken chain, and the engine won’t turn on. But replacing the heads would be a death sentence. Will be upgrading to a Cloyes timing chain and GMPP HV oil pump. Aug 5, 2019 · In order for that to happen, the timing chain would have to jump - a LOT - or the cam gear would have to come loose, allowing it to rotate without moving the cam sufficiently. Took off cap to see valves - couldn Generally if you have no compression after a timing chain breakage, it's due to valves hitting the pistons. Nov 30, 2015 · Now you know the disastrous consequences of neglecting your timing belt – engine valve and piston damage, bent valves, cylinder heads that need to be rebuilt or replaced, and possibly even total engine destruction. Aug 19, 2024 · The most common cause of a bent valve is the failure of a timing chain or timing belt. Otherwise, I can replace the chain myself. Common problem caused by excessively long service intervals. I'd pull the head, buy the timing belt & replacement parts, water pump, new head gasket , & have the head re-decked and a valve job & guides done while it's out. After the car was parked it was towed. The 1999 Dodge Intrepid has 27 problems reported for timing chain broke and bent valves. Sep 17, 2016 · As the others have said the minimum your looking at is a new timing chain/ guides and tensioner etc, valves and possibly pistons. Is the first gen small block an interference engine? I was thinking not. My older more experienced friend thinks yes, most likely May 19, 2015 · Thanks for the encouragement to do the timing chain myself. I need advice for what to do next. That motor may be rebuildable but replacing the timing chain this late in the game isn't going to help your problem, I'm confident there was a catastrophic failure here judging by the symptoms. Once back together I have great compression but still am getting misfires on one cylinder. White smoke out of tailpipe, one loud noise from rear of car. No bent pushrods, or broken valve springs. However, regular service and maintenance can help a timing chain last the car’s entire service life. The timing belt had been changed a year earlier but valve and spark timing were dead on. 6, 2. Upon further inspection I saw that the middle intake valve was bent the rest look fine. even after 20 yrs. If your timing chain is loose enough - I'm guessing due to a bad guide or tensioner - this could happen, but may end with the pistons slapping the valves. anybody have some stock valves laying around? How bout aftermarket valves? If the valves hit hard enough to break the rockers, the valve is at least damaged or bent. Bad timing chain & bent valves. Repair your 2. Aug 29, 2006 · May God's Grace Bless You '78 BRONCO: 508" stroker, TFS heads, Dominator MPFI & DIS, cold air induction, dual 3" exhaust/Magnaflow mufflers, 100HP progressive dry direct-port NOS, A/C, Lentech Strip Terminator wide-ratio AOD, 3:1 Atlas II, modified Dana 44/60-lockers-4. If it were mine i would pull the distributor look for obvious damage and see if the cam still spins. Also, you can measure the valve clearance or do a resistance test to get the initial idea if the valves are bent or not. The cam timing tensioner is located at the back of the motor near the firewall, exactly where you were describing the sound. Aug 16, 2018 · I have a 2011 Ram with a 5. Jun 24, 2010 · My timing belt broke the other day and when I replaced it and checked the compression it read 0 on all cylinders so i guess bent valves! what are the chances of having piston damage? Also if someone has a good web site with step by step of how to remove the cylinder head that would be great! thanks! Mar 30, 2014 · In an interference engine the main issue is that the valves enter the combustion chamber at an angle; thus, they tend to get bent if the timing belt/chain brakes. 7 IP: Logged Message: Such support from this site Chris Lambert Dakota USA Jan 21, 2011 · Timing chain broke while I was driving, I nearly wrecked. Jun 27, 2022 · It may well be that Bigphil555 has more insight, but from your description it does seem that somehow the exhaust valves on cylinder 3 are bent. The dealership says the engine interior (varnished and gummed oil) indicates I did not change the oil frequently enough, and that caused the current problems. An engine’s crankshaft and camshaft are timed to one another via a timing chain or timing belt, thereby ensuring that valve actuation is properly timed in relation to a piston’s stroke. Oct 17, 2016 · C3 Tech/Performance - Small Block-Broke Timing Chain = Bent Valves? - Not sure if I have a broke chain, or a broken cam, but the gear on the cam that drives the distributor is not turning. While exiting the highway it suddenly just shut off without warning. Bent valves may sometimes arise by collision with a deep pothole or wear and tear after prolonged car use, especially with poor maintenance practices. The dist Jun 9, 2011 · About 2 weeks ago i went to start my car at work and it wouldnt start. I recovered the sheard part of the pin out of the gear. (Page 1 of 2) Sep 2, 2023 · Moral of this story is: if you know your diesels, you can get away with slipped timing belt without bent valves. I also replace the head on it because of bent valves with a used a head. You can pull the head, clean out the intake ports and replace the valves & stem seals and reassemble with new chain & tensioner and more than likely a lower chain cover seeing as when the chain stretches, it starts to eat thru a couple of oil channels on the cover. If you had that camshaft, sprocket or chain off than the lies your problem. Pull your valve cover off and make sure both valves in the cylinder you are checking are closed. But its likely that something is up with the vanos or valvetronic motor. 2002 Odyssey LX 249Kmi- 253Kmi fern green which looked like gray- gone. Did new cylinder head with valves, timing chain, guides, and tensioner. You bent a valve. It cost him about $3500 to fix everything. 5L and my timing chain broke while pulling out of the garage. The dealer called me and told me that after doing a compression test, they determined that 3 out of 4 valves are bent. I had a timing chain guide break and the motor jumped time Took it to a garage where they replaced a Phaser, and the timing chains. Alot of different years of the crf450r and the trx450r had the same 112 link chain. I would start by popping the spark plugs and check the tops of the pistons with a borescope for damage from a valve strike. Back together now and I'm getting codes. May 10, 2015 · Once you bend a valve it doesn't bend more. Jan 2, 2023 · Ok but I am still stuck between how timing chain failure bent a valve, I thinking the idiot who installed the timing chain for me and didn't correctly put it back in correct timing position caused the bent valve. Apr 26, 2016 · 1) It is possible to get enough slack to adjust the timing chain from above by opening the valve cover (without removing the front cover). Jul 15, 2023 · Not only can ignoring timing chain issues lead to severe engine damage like bent valves or damaged pistons, but its complications can significantly escalate repair costs. Another way is to pull a valve cover see if the valves cycle while cranking. The comp ratio is rather low, and the stock cam is rather short on lift, for interference to occur. Apr 8, 2010 · end you can hear both the lifters (which without good oil pressure sound like bent valves), and you can also hear the cam timing chain which is tensioned by oil pressure as well. Not cheap to fix even without bent valves. 0 V6 - Sohc Timing Chain Jumped? - Anyone Have Any Experience With This Engine Jumping Time? I Am Wondering If It Bends Valves,can You Get Away With Replacing Chain, Guides And Tensioner. I think i can see where the valves hit right at the edge of the reliefs cut in the piston already. The first car I've owned on my own. The dearlership did replaced the timing chain assembly, but I noticed the cam gear is loose. You'll hear the air in the intake or turbo depending on which valve is bent. beyond frustrated as this was the 1st time I ever bought a Apr 30, 2020 · The chain itself has also gone through a few revisions too overtime and can be prone to wear (stretch) and can skip timing even with the updated tensioner if it gets bad enough. Due to a settlement, the dealership will cover 100% of the timing chain repairs and 40% of any resulting damage. 4L EcoTec from GM, and it's not exactly fun. ️If you find this video helpful, I would appreciate a $uper Th Mar 13, 2012 · I have seen very few bent valves in any 70-80's model USA V8 engines, that were related to a timing chain. May 26, 2014 · I recently replaced the timing chain a yr and half ago on a srx 05 i was having a misfiring problem so i thought was told the crankshaft position sensor needed to replaced then also the timing chain once again! After mechanic put new timing chain he calls and say I NOW NEED A NEW MOTOR due to bent valves!!!!! Is this possible? Dec 7, 2016 · The damage from a severe timing jump is bent valves from piston contact. No worries tho. Or, theres no compression due to the valves not being set right due to the timing chain being off centered. Replaced the head, timing chain, balance shaft chain. Please NOTE: The bulk of my time in the comment section is spent on comments and questions from SUBSCRIBERS, If you not subscribed, or leave off the question Aug 1, 2023 · You can't temporarily fix a bent valve or a broken timing chan. When it fails, the damage can be catastrophic, resulting in bent valves, damaged pistons, and in some cases, total engine failure. 0t TSI bent valves with high quality OEM parts. 6L, 5. Sep 3, 2006 · Believe me when I tell you there is no such thing as a cheap fix when the timing chain breaks. Sep 26, 2023 · The tight clearances between the valves and pistons in these engine types make it possible for the pistons to hit the opened valves if the timing chain fails. 2 v8 in it. If so, we'll pull the heads and determine which valves are bent. (We made sure we checked that. If the timing belt or chain fails or slips, the valves may collide with the pistons, resulting in bending. Sep 15, 2022 · When these engines bend valves its, a very slight bend in the stem, sometimes its so slight you can barely see it opened, so it doesn't do damage to the piston. My second timing chain I paid 1/2 and GM paid 1/2 since I was over the 10 year but under the 120k warranty period. I realize it has a timing chain and not a belt, but it still happens due to faulty chain tensioners, guides, and so on. Which involves me pulling the block out. If a timing belt breaks while driving in an interference engine, the camshaft stops turning leaving some of the engine valves in the open position. Aug 19, 2024 · The most common cause of a bent valve is the failure of a timing chain or timing belt. Sep 10, 2011 · I had the a similar issue several years ago. My 530i has 410k miles on orig engine. There is a camshaft above the top of the piston, right? There is a chain that drives this cam,correct? When these fellas say timing, they mean cam timing not ignition timing. Realistically it just needs, new chain, valves(the bent ones, usually not all valves, head gasket kit with valve seals, spark plugs. Mech says that worst case looks like replacing all valves, machining head, replacing all regularly serviceable timing components. This is the engine with timing chain. RE: Bent 2 Valves on my 4. With 160,000 miles the head would badly need a valve job anyway. If the valves are bent, I'll just take it in. '05 E53 X5 auto 160k replaced HG at 125k Sep 23, 2006 · > Scotty I assume you only replaced the chain,guides and cover? if so > your timing chain tensioner could be worn,read below for full details & > do a leak down test to see if you bent the valves but I suggest you > remove the head for full inspection and to prevent headgasket leakage > in future: Hi Sidney, Thanks for the great info! Apr 6, 2004 · I had an issue with my timing chain recently too, it was on a used engine I bought. Aug 19, 2023 · Compression and air leaking tests are the most reliable tests to tell if the valves are bent after the timing belt breaks. 0T TSI skipped time due to a tensioner failure. 5-10 psi will tell you if you have a bent valve. If any its just a slight mark. Often bent valves are the only damage resulting from skipping timing fortunately. Took it to the dealer who put on a new belt, tensioner and water pump. Clearly putting the engine back together, new valves, seals, gaskets, pistons and rings. Two teeth jumped won't cause valve contact though. There was one bent valve and a tiny mark on a piston. Upon inspection we discovered a bend intake valve on the number 3 cylinder and a bent exhaust valve on the number 5 cylinder. Thus, you will find no compression. . 9, 4. One would be an over rev of the motor and the other would be a timing chain failure of some sort. Don't yet know if any valves are bent. If you had bent valves your car wouldn't idle or run smooth at all. he said it has an oil consumption issue and the only fix is a new engine as the problem will continue and things will keep breaking. So far, scope shows all valves are bent. I'm starting to see how expensive parts can be on audi's! I found an 05 A6 Quattro with the 4. Jun 2, 2023 · The 4. Found the chain and guides for $75. Sep 4, 2022 · Interference engines are newer models and if the timing belt or chain brakes, then the pistons will hit the valves, causing important damage like bent valves and pistons. Jan 4, 2023 · In either case, valve actuation is a direct product of cam timing, which itself is a product of engine timing. The only way you might bend a valve is if the chain skips teeth, not breaks right away, then the valves could open at the wrong time and could hit the pistons. The head needs replaced at a minimum, along with the timing chain. my gut says, it may have hit on the intake valves, but there are many variations of pistons and heads and valve drops, so hard to know exactly what you have. May 13, 2008 · I have a 99 legacy L wagon with a 2. I cover diagnosis of bent valves in this video: https:// Aug 2, 2010 · 2. 4L 3V Bent Valve Symptoms? - This is my first post. Dec 1, 2008 · It bent the exhaust valves on cylinders 1-3-5-7 and 4. Timing belt or chain failure is the most typical reason for this. Dec 16, 2019 · 2013 Jetta 2. Customer: Replaced cylinder head and timing chain and phasers on my 2012 equinox due to bent valves, rotated engen by hand and felt or heard no problems but when I tried cranking it I had no compression and valves bent again Mechanic's Assistant: Have you noticed any ticking noises, misfires, or oil leaks? Those are the most common symptoms of Aug 24, 2023 · So. When I removed the timing chain and gear, the cam guide pin had been sheared off the cam. timing chain or tensioner failure -leading to bent valves - in a 6 cyl M54 is pretty rare. Or Should I Start Looking For A Used Engine. They make sure that the engine’s intake and exhaust valves open and close in perfect sync with the movement of the pistons. They're saying it has nothing to do with the timing chain and offer no explanation as to what could have caused the valves to bend/damage to the valves. 0 & SOHC 4. He told me likely bent valve, but possible cracked piston due to it being an interference engine. if a timing chain breaks while the engine is running even at idle, will the pistons hit Sep 26, 2019 · going through something similar. I have had no issues with it since the rebuild approximately 15 engine hours ago. 7T. He didn't do it and it Apr 24, 2015 · After that the Timing Chain tensioner failed, and I had to have valves replaced, a new head gasket, new timing chain and tensioner (replaced the water pump too). A broken timing belt or chain failure is one of the leading causes of bent valves. My neighbor had a 1975 SL and his chain broke and bent some valves,connecting rods and pistons. Pretty rare a timing chain snaps. Dec 19, 2020 · A timing chain skip leading to valve damage on a 6 cyl M54 or M52TU engine (in E46, e39, E83, E53,etc. I recently bought a 2001 Audi Allroad 2. Code# ***** p0340 Camshaft position sensor A circuit (Bank 1 or single Sensor) Need help Apr 14, 2021 · So I pulled a valve cover, and immediately saw that all of the intake pushrods were bent into boomerangs. Nov 13, 2006 · 2. Still it seems to have no compression or very little. wisco 11:1, 696/697 webcam, webcam spring kit w/titanium retainers, sparks X6 exhaust, hinson basket, sparks clutch, , 02' tranny update, port work Sep 16, 2024 · Timing Belt or Chain Failure: The timing belt or chain plays a critical role in synchronizing the movements of the crankshaft and camshaft. I have a 2008 CTS (120k miles) and have had two timing chain replacements. Nov 4, 2008 · the valves should not be bent, when the timing chain breaks the valves shut immediately and stay shut, therefore no piston to valve contact. Described in post #1 of the linked thread. 4 So. Dec 8, 2021 · How to check for bent valves after timing belt or chain jumps or breaks and hits the pistons. Variable valve lift and variable valve timing control all valves at once. The Timing Chain Stretches Nov 4, 2022 · So, chain, VVT sprockets and tensioner,lock up cams,split chain and feed the top chain through whilst removing the old one and then see if it sounds like a bent valve, never noticed anything when rotating bottom crank but that may mean nothing regarding bent valves. The chain u need is a 112 link chain. If the timing chain jumped, odds are the valves are bent because this is an interference engine. yes you do have to split the cases, and i know of no aftermarket timing chain as of yet. 4 Ecotech LEA because timing bent valves. How did this happen? Well they of course told me i overreved my car most likely. My question is, can this break bend my valves like it does with a Honda? I've replace timing chains/belts before, but valve issues may be beyond my ability. 0 engine. 0 because it sounded like valves rattling. 57 exh valves, dual springs, LS-7 lifters, Trick Flow push rods,HPE Ported Throttle body,MDS wires,NGK TR6 Plugs, AZA Z-9 Chrome Lip staggerd, DBA 4000xs w/ Hawk Ceramic Pads, Royal Sep 25, 2021 · I have a 2003 400ex with a fresh top end new valves, cam, timing chain, and piston. I've got the driver side head off, and Number 1 cylinder is at TDC, and the cam timing marks are dead on, so there is no chance that the timing chain was installed incorrectly. 4L 150,000 kilometers My Dad's Equinox jumped timing and bent all the valves, a result from low oil. I replaced the valve cover gasket with a metal one since the paper one I installed during the rebuild was leaking, and I readjusted the valves after as a precaution. Speed has nothing to do with engine living through a component failure. 0t TSI let loose bending the valves in your head? We put together this repair kit just for you. new stretch bolts, re cleaned all mounting . Dec 15, 2014 · Modular V8 (4. Dec 18, 2018 · I am about to go look at a 1996 XJ6 VdP and the previous owner claims the lower timing chain has broken. 160 lbs in #1 cylinder and 30lbs in cylinder #4. 4 nm was a tough one to replicate, re did timing and with lock tools, went a little less on the pre tension of the chain, reset everything to spec. 6 L V6) has suffered engine failure - bent valves, jumped timing chain, cracked cam carrier, etc. New cam sprockets, cam sprocket bolts, and both cam solenoids. The rest is labor. 10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, custom traction bars, 4" lift, 35" mud tires Nov 29, 2024 · The Timing Belt and Chain. When they turned over the engine they are claiming to hear bent valves. Im speculating either all my valves are bent and ill need a new head. If a timing belt or chain breaks in an interference engine, the first step is to assess the damage. 2 engine in it that spun of the timing belt at 55 mph. 055 intake and 1. It won't matter if it hits anymore, only that they hit once. 7 IP: Logged Message: Sounds like an inept mechanic. Now it spins over like no compression im pretty sure it spun a timing gear or chain. Has timing chain issues and has bent valves. Regular maintenance and timely replacement of the timing belt or chain are essential to prevent The timing chain tensioner went out of it and I had the timing chain and tensioner changed. 0 4 speed automatic stock 2011 SX4 Hatchback AWD 2. Turbochargers also rely upon the engine oil for cooling and lubrications. Mar 19, 2020 · What happens if the timing belt breaks? If a timing belt breaks, the engine will no longer work. He says he pulled the cam cover, turned the engine over with a socket on the crank and the cams did not move with the crank. Long story short after taking it to the dealer they replaced the timing chain and concluded valve #3 was bent. This is most commonly caused by a broken timing chain or timing belt. On a 1999 tracker, it's not likely worth fixing this unless you are able to source a cheap used engine. About 98% certain the chain and gears are installed correctly. So, I got the valves cleaned them up and now I'm trying to figure out what the valves should look like with the head off and in time because when I put the head on and I timed it correctly, the engine would not turn over. A non-interference engine provides clearance between the valves and pistons, so if the timing belt breaks, you might end up with bent valves, and you might have to have your cylinder heads rebuilt, but the engine isn’t likely to be destroyed. Timing Chain failed. Question is is it interference engine if so any chance valves arent bent? Sep 7, 2018 · If you have an engine miss or performance problem, don’t forget to check for a mechanical problem, such as compression loss, with the engine. I pulled valve cover and was turning crankshaft to set TDC to check timing. I just finished rebuilding a 2. Since I'm a bike mechanic I Timing chain went and bent the valves. 6 engine. The common problem with the GM 3. Non-interference engines are older models, especially petrol cars, which have a lower compression ratio. Jun 5, 2022 · The timing chain is a critical engine component. Average repair cost is $3,330 at 93,500 miles. May 5, 2010 · 1992 Kick JX 4x4 4door 1. I tried to start it again it and it cranked but no start, so I figured it was my coils, so I went to the local auto Nov 9, 2010 · Once the chain jumps enough teeth and changes the timing so much your bound to drop a valve, which would yes trash an engine. had timing chain replaced at 64,000 miles 2 years ago and now at 96,000 the head gasket went out. ) is pretty rare. The large bolt wasn't even finger tight; it was very loose. As for the pictures. 8L Ford V6 has the valves pretty much perpendicular to the cylinder head surface, so when the chain breaks the valves pretty much just get pushed closed by the pistons. Code#1 p00C6 fuel pressure too low-Engine cranking. Dec 4, 2016 · So I found a really great deal Well I think. I checked camshaft caps they are all on correctly. side. Does this mean that the engine is still good and didn’t crush or bend the valves? I could justify removing the engine and replacing the timing chain & cassette. Apparently she drove about 20 miles like this!!! I assumed timing chain may have stretched and potentially a bent/broken valve. Most engines made in the last thirty years or so are interference engines and will be severely damaged by a timing chain break. Pistons are in and pan back on, now before putting the head back on I have the intake Dec 12, 2019 · The timing chain broke on my 2010 Volkswagen Tiguan (79k miles). Apr 23, 2021 · Bent valves occur when there is a serious problem with the timing of the engine. I believe the 3. 0 CVT stock Mar 4, 2015 · 2. compression is the same. 180 000 km on the clock. 9K views 6 replies 3 participants last post by 71Dubb Jan 12, 2020 Customer: My 2007 Saturn Outlook (3. We also checked the timing chain and it is good as well. Jun 21, 2007 · WHen I pulled the head off I noticed some piston contact from the valve. For the 2008/2009 models there was an extended warranty 10 year/120k from original date placed in service. The head will no doubt need to be machined and decoked. Oct 12, 2019 · He had a snapped timing belt so I broke it down to the head to replace any bent valves and then put it all back together. Jun 19, 2005 · Most engine wear on any engine occurs at startup with that said the R series Toyota engines such as the 18R,20R and 22R all use a timing chain which it's tension is supplied by hydraulically driven timing chain tensioner which has it's oil pressure build up few seconds after the engine has started therefore the timing chain rubs on the driver's side brown colored nylon/plastic timing chain Jun 2, 2015 · It was thought that it could be a timing chain issue, as there is a recall on it. Oct 5, 2019 · Welcome to the timing chain replacement club. More importantly, knowingly driving with a bad timing chain is counter-intuitive as it substantially raises the risk of sudden engine failure and the likelihood of on-road Aug 25, 2019 · If they look okay or the damage is minor, we remove the head, replace the bent valves, have the head leak checked by a machine shop, clean the piston tops up with a reconditioning disk on an air tool, install a new timing chain kit (Or timing belt in other cases) with a water pump. DakUSA DakotaEnthusiast 2/25/2004 14:03:02: RE: Bent 2 Valves on my 4. Side note: any gas-powered engines will "purr like a kitten" after diesel's noise. My son parked his 2009 xterra 4. Towed it back to the shop ripped it down and found the timing chain had stripped the upper timing gear of teeth. A timing belt or chain connects the crankshaft and camshaft, two components essential to the operation of your engine. Replaced chain and gears reassembled it. It can also occur if the timing belt slips and causes a misalignment of the camshafts and the valves. BENT VALVE SYMPTOMS Feb 6, 2015 · Just learned that my 2009 Passat 2. Very Common Sep 2, 2013 · I found a reference where someone said pretty unequivocally "Broken Timing Chain means Bent Valves on a GY6 150" Is this true? I have the head off and I see no nicks in the faces or edges of the valves or the (61mm) Piston. 3. Which isnt that case at all. There was some slight contact to the exhaust valves but they just touched the carbon on top of the piston. New balance shaft chain and tensioners. It sure made a bunch of noise and I thought the motor was trashed. He told me compression on the other cylinders checked out fine. You can confirm damage/no damage with a leakdown or compression test; a bent valve will increase leakdown and reduce compression. Yhanks For Your Help, Tim Apr 25, 2023 · exhaust valve guides border line (sloppy) intake valve faces and seats worn (where not sealing could see light thru valves when seated, (and remember valves not bent) so needed valve job at 150k and chain broke, no carbon buildup getting head back from machine shop, and going to start assembly in a week or 2 This can happen if the timing chain on your N14 skips time and bends valves which is a common issue. Oct 18, 2009 · Car would try to start but wouldn't start. (Once the valve is bent it can no longer hit the piston, since it's already bent out of the way. If a valve is bent, you'll know right away from noises and power loss. If you’re changing a timing belt by yourself, you must adhere to all guidelines provided by the vehicle’s manufacturer in the official service manual. Timing chain gets loose damaging valves and motor. Mar 23, 2022 · The risk is way to high if a valve finally let's go the entire engine would be toast. A very large valve gap usually points to a bent valve. This video cove Oct 15, 2004 · actually yet another flaw in the raptor the timing chains are extremly weak, are indeed known to break. Basically it's a strip/ rebuild and yes the oil pan needs to come off as the remains of the chain/ guide rails are in there! Jun 14, 2015 · You dont have to make a different thread if the problems are related. Since this is a sohc engine could this be possible? Aug 24, 2007 · The timing chain cleanly broke on our 02Z during an HPDE. Jul 19, 2008 · Turned the engine over by hand and the timing chain (visible through the tensioner hole) appears to still move with the crank. Compression testing and cylinder head removal are the two best ways to identify a bent valve. Remove the glow plug same as a compression test and go. which makes sense more than individual valve issues. Sep 9, 2024 · Hello every1 i got a question. 5. The timing chain tensioner can be removed by opening a small tensioner cover plate accessed through the front passenger wheel well. Aug 24, 2010 · Friday night I removed the timing chain cover. 4 jumped timing and bent the valves in the head. zoz pneai laugzme thqqa juwmjo mecvo fvriaoc iyqvjx xhng erv