Quote:
Originally Posted by notorious
It looks like I'll ned to replace tensioners and chains next time I do cambelt service.
Is MRC the best place to do it? I think Goran recommended 'Unit 20' as well.
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Hi Sergei, in my opinion both MRC or Unit20 would be a top choice, they are both well regarded in the Audi community.
Mikki, thanks very much for looking into it, shame its not possible. I knew it would be the bottom pad that's tricky. I was thinking it could be poked off with a chopstick then fished out, but with the cam sprocket and chain in the way I can see it would be pretty much impossible.
Yup its a rubbish design. the whole plastic pad should be sitting in an aluminium cradle so that it cant snap under the force of the chain tension. That way even if it cracked it would be contained in the cradle and continue to provide a soft surface for the chain to slide over. If I had access to a CNC machine it would be interesting to have a go at making a pad shaped cradle to bolt onto the tensioner then cut the pads to drop into the cradle held in either by wedge shape or simply by chain tension.
Admittedly the pad on its own does have some flex and this would be lost if it was in a cradle, but is that small amount of pad flex critical to the chain? my guess would be not.