Do oil-fed tensioners ever fail?
10-29-2002, 11:14 PM
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Do oil-fed tensioners ever fail?
I have a 1981 911SC. It was converted to oil-fed chain tensioners by a previous owner. I'm hearing a noise that I, (and others) belieive to be the timing chain. Do these "bullet-proof" tensioners ever fail? How about the plastic guide rails?
Todd
1981 911SC
Todd
1981 911SC
10-30-2002, 10:20 AM
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Yikes.....I just bought a used set for about half the price of a new set because of their 'bullet proof' reputation. Mabye used was ot a wise decision.
Are there rebuild kits avail. for the hyd. tensioners? Or are there tell-tale signs (prior to installation) of them being bad or failing soon?
-Charlie
(with mechanical tensioners)
Are there rebuild kits avail. for the hyd. tensioners? Or are there tell-tale signs (prior to installation) of them being bad or failing soon?
-Charlie
(with mechanical tensioners)
10-30-2002, 10:35 AM
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I'm with Bill on this one..and pressure tens. can become a wild discussion..some say change them at 50k-70k/some say wait it out..my tens. have 40k and I may change cams..but my tens. work great now and I will not look for possible problems by changing them..and I don't know anything about rebuilding..some say do a bench bleeding before install, which is not on any instruction material/which I did by instinct..not a pro here.....Ron
10-30-2002, 04:34 PM
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My mechanic installed my new tensioners two months ago and the second he started the motor one immiedietly failed.Hmmmmm...I have not heard that they are bullet proof. This just reienforced that. My .02