I've just changed the head gasket on my E200, M111 engine .
All went really well, until I can to refit the timing chain tensioner.
I followed the Haynes book really carefully, adjusting the plunger in line with the tensioner body, fitting that to the block, but when I came to fitting the spring and end piece - it was all but impossible, because of the strength of the spring!!!
I took two of us to do it finally. One to push the end piece onto the spring, and another to turn the hex head on the end piece with a spanner. Should it be that hard?
Have I over-tensioned the timing chain?
I've finished for the night now, but I've got the manifolds to fit and so on tomorrow.
Please advise me!
W124 '94 E200.