Jonas Goldsmith

My chain tensioner is in perfect condition... what needs to be rebuilt???

K27

is that V-Tec ?

Jonas Goldsmith

VTech has nothing to do with extra valves... I think SoCal p-shoped that... (good job on that btw, it looks good) VTech on the other hand is a second set of lobes on the cam shafts... At a certain point the cam shifts over to allow the second set of more radical lobes function...

sharky47

SoCal, you made me shoot beer out my nose! I can laugh at this because I too am rebuilding a 16V head. Too funny!

SoCal Driver

Here:

K27

ok ok enough already ! I was joking.
FFS

89magic98

On this thread:

https://rennlist.com/forums/showthre...&pagenumber=18

I said this:

And you said this:

And this:

I read this:

http://boerger.golden-tech.com/image...eplacement.htm

"Now, there is another route available to make matters more complicated.... The plastic ramp is now available from Zims Autotechnik. It is the general consesus of the most knowledgable S2 gurus that replacing only the ramp is not a good idea. Their opinion is that when the original ramp has worn down, the hydraulic part of the tensioner is also ready for replacement. However, some guys are taking this route to save money....The ramp is only $25.00. The jury is still out on who is right because the ramp has only been available for a few months. I recently replaced just the ramp on my 1989, at 92,000 miles. I plan on replacing the entire assembly within a year."

Just curious... since someone on this list may be buying your car.

SoCal Driver

Not having taken a chain tensioner apart what is there to wear inside of a machined and ground bore and piston? Is there an o-ring?

If not and high pressure oil has been used as to assist the spring and to lube the piston then I can't see where this can go for the life of the chassis. This is based on years of designing and building perisable tooling for the automated assembly industry.

I would be far more concerned with cracks in the hinkey cast mounting on the head than the possibility of a worn bore and piston.

The only reason I can see for the factory to push the entire assembly is profit.

Jonas Goldsmith

I was just gonna have him replace the pads on it... i didn't know what was involved... but as it turns out, the pads look great... In fact when he first took the head apart to inspect the damage, John called me thinking that i had another shop replace the chain tensioner... I guess that means it looks pretty good...

Also, who on the list is buying my car??? No one on here has really expressed any interest.... It seems that the S in general has been getting some bad press on this board recently..... Everyone seems to want a 951 now... Oh well, there are a few possiblities from Roadfly...

Cheers,
Jonas

89magic98

I thought you could only buy the top tensioner pad, and that the bottom pad is not for sale as a separate item.

If you search for "chain tensioner" in the archives there seems to be a lot of debate as to whether you should change the pads or go for the whole assembly at some point in the car's life.

I didn't mean that a rennlister was definitely going to buy the car. But if a fellow rennlister were buying the car, I would think that a "best effort" of discussing the exact maintenance history would be fair. If there was a stong interest in your "S" a few months ago, someone else would have gotten the broken timing belt shortly after they bought it.

SoCal Driver

The bottom part of the chain is in tension. The thin pad is like the smooth idlers for the belts. It's there to stop any flapping. Seldom touches the chain. How many times do you really have to replace those idlers for the belts? I bet you still have the smooth idlers that came on your car.

89magic98

Actually, I have changed those idlers twice.

The first time was at ~72,000 miles. One of the idlers had seized, and was slowly rubbing the rubber off the teeth of the timing belt. Caught it just in time.

Now, I don't know if that means that the position of the idler was incorrect, but it would have broken the belt.

And I have a new set of everything (seals, rollers, etc) in a box, will do it probably this spring.

------

I think with the cam chain tensioner, there's probably one mode of failure for 90% of the cases, but it seems like there's might be other, less common failure modes going on if you look at all of the posts.

Devia

I saw the engine yesterday, with Jonas and John. Looking good!

- Julie

944S2NUT

Hey Socal have you ever thought about registering?? I mean if you are going to be annoying at least pay for it.

SoCal Driver

My advice is priceless.



If you think I'm annoying then you deserve the whacks you are getting.