1993 850 sedan

so I'm gonna do it. Replace timing & serpentine belts, pulleys, rollers, damper, water pump - I don't want to open this engine again for a while. Bought all the parts, got some tools on loan from autozone (great program)

I'm ready...except for few questions.

Posts on this and other forums concerning timing belt replacement mentioned when replacing the dampener/tensioner part to replace the "plastic disc or clip" that snaps on (i believe) to the top of the dampener. Then again several posts concerning timing balt replacement do not mention this disc.

I called fcp groton for advice as I had purchased the belt there. The rep on the phone sounded knowledgeable and stated he'd never heard of or sold such a plastic part. Autozone and their supplier Goodyear didn't know about it either.

So I'm asking the Collective Wisdom of this forum for an opinion. Based upon actual experience, is this plastic piece that snaps onto the dampener arm important or not? Not having done a belt on an 850 I don't know whether the dampener arm beats against the belt and the disc provides wear and abrasion resistance preventing breakage. Or is it unnecessary? Or should I use the one from the old part if it's there?

This is one of those times when I could use help from someone' who has "been there."


Thanks

Paul

I read that if the disk was there before you should put a new one in in its place. If memory serves my belt which I bought from a dealer had the disk in the package. I found that the tensioner on my car (which I did not replace) had a disk on it, so I replaced that with the new one.

I bought my belt from FCP. The plastic piece was inside the box. My car is a '97.

My understanding is that the plastic disk is intended to keep the tensioner from collapsing, if it fails. If that is true, it is kind of important. Check the archives or go look on the Volvospeed website.

Good luck

Yeah the plastic disk is important even though FCP G. doesn't think so. I went to the local Volvo dealer and bought one for $0.89. Yes that's eighty-nine cents. Least money I ever spent at any dealership, espec. Volvo

So I got the disc and it turns out the dampener I removed had one on it too.

Now the problem is I can't get the timing belt on AND maintain the alignment between the crank pulley and the two cam sprockets. Four times now the belt has gone on and one of the marks is off. Last time by one-half tooth. I have a pitious lament in another post.

Tahks for the reply on the plastic "thingy"