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In Reply to: timing chain piston - tightened but turned - ok? posted by Todd Kenyon on November 10, 2001 at 11:36:29:
The diaphragm is a volume with a perforated disk in it. As the piston reciprocates the oil is pushed through the perforations back and forth. Kind of like a suspension damper/shock in a car. The oil going through the holes reduces piston vibrations and keeps the chain from being too rattly.
If you turn it around it is possible that it will not bleed as well and there will be air trapped in it should the tensioner bleed down for some reason. I know someone who ran it upside down w/o problems, but I DO NOT RECOMMEND this. Turn it back so that it faces downwards. Just hold it in place as you tighten the plug.
Note that the washer is probably 'used up', but if you remove the plug you'll dry the cylinder up and have to go through the whole bleed the tensioner thing.
Neil Deshpande
http://www.neilwerke.com
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put a wrench on the "cap" on the end of the timing chain tensioner assembly, it was fairly loose, so tightened it. When I did, the diaphragm assembly rotated, so it's not vertical (disc horizantal) any more, it is now pointed toward rear of car, say at 7 oclock. WIll this cause any problems? Geese, I am just full of questions these days...
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