Quote:
Originally Posted by duxthe1
I have concerns about your tensioner re-installation technique. It should not be hard to screw into place. It should be disassembled and the main body installed first, which is easy. Then the plunger and spring followed by the cap. Screwing in a whole tensioner at once is a recipie for disaster.
That said, it sounds too frequent to me for it to be valvetrain related. I'd be suspicious of the bottom end, possibly a broken piston skirt allowing too much piston rocking.
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My technic is right.
I would never do the whole tensioner at one time, it is self explaning, because if you do that, you will see that the tensioner goes all the way trough and it will not make any sence to max out the spring before you put the tensioner in.
But if you ever tried to mount a chain tensioner in this model, you would know you have to press in the spring while it gives you a lot tension while you have to screw it on, can be quite a chalange even for a mechanik.
I always do it by the manual from Mercedes:
http://www.w124performance.com/service/w124CD1/Program/Engine/104/05-3100.pdf
Your suspicius of the broken piston skirt has been in my consirn as well, because it sounds just like that.
But as I resently changed my oil pump in the seach for removing this sound I cheked all my pistons skirts, and there was nothing broken and no bad burned coloring or other suspicius signs of things going wrong.
Thats why im totally lost in this sound.
But the sound is deffently coming from the top not the bottom end.
So perhaps it could be the piton wrist pin og rod
