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timing chain / timing chain rails
Well, I have been reading the horror stories of timing chains jumping and chain rail breaking, and am cautiously going to attempt the r&r if stretch is exessive.
facts: New to me 95S420 w/334k-km. (about 210k-miles). There is no indication in the PO's records of having this addressed anywhere in the vehicles history, so I am a little frightened to travel with this vehicle. So the first step is to check chain stretch, then inspect the guides. Regarding the chain stretch, how do I check this exactly. I realize the engine must be set for TDC at the cam (drivers side I presume), but what marks do I set to align up? Should the engine crank be turned clockwise or counter clockwise viewed from the front? With regards to a borescope, how or who has these criters (to check the guides top and bottom)? Regards Ron PS. A picture showing the alignment marks on the cam sprocket & cam tower would be nice.
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1995 E320 -171k-km 1995 S420 -333k-km |
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