[dmr47]

Timing Chain

I have never in my life heard of a timing CHAIN stretching. I have always been told that they are fine until they break. I have 207000 on my original and my motor is fine.

Timing chains do not stretch per se. Timing chain links and pins do wear and in effect give the timing chain extra length. Is that stretch, not really.
Its like when someone says their engine froze up. Well, no it didn't, it seized. It's just semantics.
Don't cheap out and change just the top gear and chain, get a kit with all three parts. Do change the front seal too.
Close inspection of the gears will show wear on them as well and that affects timing.
Inspect the timing cover for corrosion from the water pump side. Sometimes they will corrode through and let coolant into the oil which is a death knell for engine bearings.


ASE Certified Engine, Brakes, Steering and Suspension

 

[dmr47]

Timong Chain

The worst part is done you have got to it. Basically just line up the dots.
Be careful don't agitate the dots lol. Turn it a couple times to make sure the dots are still in alignment. Change the gears also as they will wear also.
I changed mine at 113,000 on engine rebuild to be safe. It didn't look that bad. Make sure the timing cover hasn't corroded through. Put a little oil on the seal so it doesn't run dry when initially starting and put oil in the chain also.