I am currently in the process of removing the timing chain tensioner and i read somewhere on this forum that you are supossed to put oil in the timing tensioner because it is hydrolic. I did notice that when i was taking mine out today that oil cam out but i was still unsure and befor i put it back in i just want to make sure that i was doing it right.

thanks in advance.

If it is a hydraulic timing chain tensioner (like on a 107 380/560), I'm pretty sure that it is a good idea. I've read this on several sites, and supposedly it had been mentioned in older M-B manuals. It is interesting that my new tensioner was shipped "this side up" (like, UPS,the cargo container shippers, etc were going to read that in the box). Some oil had leaked out into the plastic bag. I put oil in mine, and then of course it became impossible to install. I removed it and then compressed it slightly in several iterations until I could barely (with several screw threads engaged on both screws, of course!!) draw it to mount.

An older tensioner will probably leak more and more quickly.

Maybe if you turn the engine over by hand several times without doing this, you might get the same result (which I also did, and recommend), but I looked at it as extra insurance upon the first actual startup of the car after performing this task.

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86 560SL
With homebrew first gear start!
85 380SL
Daily Driver Project

http://juliepalooza.8m.com/sl/mercedes.htm

Did you go to the site I posted for R/R tensioner ??

I hope you pulled the pin through and reset it from the front.

Although it never hurts to put a light coat of oil on all engine parts during assembly there is no need to put oil in the tensioner. Service the tensioner as instructed by Arthur and it will be filled with oil as soon as the engine starts.

Good luck,

But then it all depends, I didn't see what engine this tensioner was in, or maybe I missed it. If it is a 4.5 or possibly even a 3.5 then the tensioner needs to be primed in a bucket of oil. Makes the tensioner a real PITA to reinstall.

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Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.

I did and it was a big help. thanks. i was just concerned because i had read in the tech forum where someone was replacing the tensioner on a 300e(? i think, cant find the thread) and they mentioned puting oil in the tensioner and i didnt want to have any major problems that could be avoided.

The earlier tensioners had to be primed .. you have the newer ratchet tensioner [ which is a way better system] and the only concern is that you did push the pin through and restarted it from the outside . Failure to do this resetting will break the chain and cam.

thanks for all your imput. sould you all by any chance know what tool you need to remove the timing guide rail pins