What happens to the timing chain in a car?
Timing chains are the critical link between the crankshaft and camshaft. Through a series of guides and tensioners, the chains are responsible for keeping the cylinder head valves in sync with the combustion chamber pistons. If the timing chain becomes loose, either by stretching or a failed tensioner, there are serious problems ahead.
How big of a torque wrench do I need to replace chain tensioner?
Reinstallation was likewise simple. Note that the tensioner bolts only need to be torqued to 10-14 Nm (7.4-10.3 ft-lb). This isn’t very much. I used an in.-lb torque wrench to get it right.
When was the first timing chain lawsuit filed?
Fed up and facing massive repair bills, the first timing chain lawsuit was filed in May of 2016. It placed blame on the tensioner system and said VW should help pay for repairs. Another class-action lawsuit soon followed by 24 plaintiffs in 17 states claiming the timing chains “jump a tooth” in the camshaft.
Is there a settlement for the VW timing chain?
Click on the lawsuit for more information and to see if you’re eligible to receive any potential settlements. A VW timing chain class-action lawsuit may be nearing the end as the automaker has agreed to settle the multidistrict litigation that comprises seven class-action lawsuits.
How does a timing chain tensioner work when not running?
The tensioners are kept tight with oil pressure when the engine is running. The oil drains back when not running, but some tension remains on the chains from the spring inside the tensioner until it starts and is pressurized. I have gotten almost everything off the front of the motor.
When did they stop using chain tensioners in drag racing?
The chain tensioners used from 1996 until 2001 had a ratchet mechanism built in to self-adjust the tensioner for wear. When drag raced on sticky tires, the tensioners would over ratchet, cuasing premature front cam-journal wear.
What kind of tensioner does Ford Racing use?
Also as a FYI Ford Racing no longer uses the plastic tensioner in their timing kits also, they all include the upgraded Steel tensioner as shown above in our post. MMR has never seen the “over ratchet” condition mentioned in the SHM book, but as many know, many of the SHM “findings” were incorrect.
Fed up and facing massive repair bills, the first timing chain lawsuit was filed in May of 2016. It placed blame on the tensioner system and said VW should help pay for repairs. Another class-action lawsuit soon followed by 24 plaintiffs in 17 states claiming the timing chains “jump a tooth” in the camshaft.