Pagoda SL Group
W113 Pagoda SL Group => General Discussion => Topic started by: enochbell on October 02, 2005, 04:19:27
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Had some chain noise at low idle and on letoff under no load, progressively worse over last few hundred miles. Opened the valve cover, I found the chain tensionser to be absolutely non-functioning. I could flip and flop it back and forth and it was obviously not providing any push against the chain (I installed all new about 5 years/5k miles ago). Not knowing what else to do, I just cracked the 27mm nut and "plink" the tensioner went back to doing it's job. What did I do, and what was wrong? How come the easiest repair I ever accomplished is also the one I did by accident?
g
'64 230sl, fully sorted out...ooops, spoke too soon
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A good possible is you had a pressure pin/piston hanging up in the retracted position and turning the cap freeded it .. most likely dirt, but I sure would pull it, take the spring and pin out and look for scoring and a good fit as you certinly don't want a chain to snap. If you find any binding, change it. Bleed it well after you get it back together.
Here is a good link from the archieves..
http://index.php?topic=3525
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Thanks, Arthur, I will pull it next weekend and see about dirt etc., as I recall I found it very difficult to bleed when I first installed it, it may be hanging up somehow.
Best,
g
'64 230sl, fully sorted out...ooops, spoke too soon
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Hello Greg,
This is not uncommon, Arthur nailed it. The tensioner operates in a small area of its range. You probably have a varnish build up at the outer limits of its travel. Just clean it up a little.
Joe Alexander
Blacklick, Ohio
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quote:
Originally posted by enochbell
I installed all new about 5 years/5k miles ago.
Joe,
Would varnish build up after this amount of time/milage? Just curious at what it takes to cause a problem.
Rodd
Powell, Ohio, USA
1966 230SL, Euro, Auto, Leather, both tops
1994 E420