The #1 Reason for Timing Chain Fatigue 

Cloyes timing chains are garbage. My wife called me today and said her 2013 F-150 EcoBoost quit running while it was sitting there idling in the driveway. I went out and took a look at it, the engine cranked but had no compression. Pulled the valve covers off and found the primary timing chain missing on the driver bank and off the sprocket on the passenger bank. I was able to pull the chain out of the engine through the top because it was broken. One of the links had failed and upon further inspection, I found about half the links had a very concerning amount of play in them, and the other half were tight. I just replaced all the timing components on this engine 16 months / 10,000 miles ago, along with a Melling high volume oil pump. The chain showed no signs of lack of lubrication or damage from a foreign object. That engine ran beautifully and now it is ruined. And of course, Cloyes will not cover the cost of any parts or repairs other than the cost of their garbage chain. I will never, ever buy another Cloyes product.

Great product, very well made. The installation video was very well done ant to the point. Sure made the job a lot easier. Cannuck

In short. Use quality oil and stick to the maintenace schedule. Poor lube inside and engine put extra stress on the chain to move all the move able parts. Thanks man

Use to think timing chain was good for life of engine. Probably true for old OHC V8, V6. Most overhead cam engines use long chains where chain stretch less tolerated; plastic chain guides and chain tensioner are maintenance items. Maybe timing belts with 100K changes are not so bad, they are quiet. Hi end motor cycles now use HD drive belt instead of chain.

At 2:25 Direct "Ingection" = Injection - Correction

I got a Cloyes timing chain kit and it was made in china. I sent it back.

Do you guys produce the oem timing components for Ford?

The inverted link chain may be quieter and may look stronger, but the Cloyes True-Roller timing chain is definitely stronger, more reliable and resistant to stretching. I have used both types of timing chain sets in my engines. I have experienced flat-tappet camshaft failures in engines with both designs (the ultimate stressor of a timing chain). The inverted link chain stretched an unbelievable amount (due to the oil pump churning up bits of cam and lifter debris. In both instances, the oil pump housing was "Blue" from the increased drag from the metal ingestion. In the engine with the Cloyes True-Roller timing chain set, the chain did not stretch at all and was still useable. One aspect of the design that is apparent to me is the self-cleaning nature of the roller chain (open areas between the links and centrifugal force allows debris to escape) versus the inverted link chain's tendency to trap debris between the chain and the sprockets, leading to quicker unnecessary wear.

I’ve had the chains and tensioner replaced on my wife’s terrain ecotec 2.4 with a rattle on decel at 1800 rpm, but the noise is still there, if not worse on accel now, should I try another oil change ,and should I use an additive such as stp, or Lucas ? I’m a mechanic myself, but have just had a knee replacement and had a shop I trust do the work ,which was diagnosed by the gm dealer ?my shop guy seems to think he hears the noise lower in number 4 cylinder , which could indicate a rod or possible torque converter /flywheel failure or looseness, any suggestions please ? Roger

Interesting phraseology. What, exactly, do you mean by "fully designed"?

I have a 2006 Toyota 4zz engine with 306k and the original timing chain.

👍👍

There are 2 really bad really suspicious reviews about cloyes timing chains on advanced auto for the 2016 gmc terrain that really turn me off about using this brand. In both those reviews they had catastrophic failure less than 10k miles after timing chain job🤦‍♂️ so now what??

Also if you have a lead foot.i had a friend who would put the pedal to the floor every time he Went to work in the morning since he took the interstate he would floor the Cadillac STS until he got up to 75 miles an hour this was not good so in the 3 years he had the car l put in three timing chains I told him this is not good for his car but he would say he had to blow out the carbon every morning well he blew out the timing chain three times in 3 years that Cadillac STS is not made for running like he had it going so now the car sits in his yard backfiring engine missing and it just doesn't run it will start but it runs so rough you can't even put it on the street cuz it won't pick up speed anymore so remember if you have a lead foot you're going to be putting in time and change a lot.

The quality of the chain material used in the chain itself is a major factor as well, not all chains are created equally. cheap materials used in the chain like chains that are made overseas in an Asian country are well,... cheap ! made of poor quality and thus will not last as long. You get what you pay for.

there is no such condition as chain stretch - chain wear - yes

What about pre-oiling the engine before start up? Hold throttle down on modern car turn key for a few seconds and then let off gas. Engine will then fire and pre-lubing is done.

OHV = OHC: correction

Won't have this issue with EV vehicles😳

shepherd = راع = peng-|gem-ba-la