Question about 1991 Mercedes-Benz 350
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Posted on Jan 02, 2017
This engine is timed at t.d.c.. With the crank at 0 degrees you will start with your intake cam. this cam is hollow and advances( it actually moves to the right after 2500 rpm ) because it has a distributerless ign.. The timing marks for the cams are holes in the back of the gear flange where you can put a small 3 or 4mm. punch through the back of the flange resting the punch on the top of the head. the hole will be to your right on the intake and to your left on the exhaust( outside towards the manifold) When you get the intake cam timed hold the cam and turn the gear to the left as far as you can( if you look at the top of the advancer you can see the mechanism resting against the housing) If you do not the cam will over advance and hit a piston. Time the exhaust cam and put in your tensioner( I always reset the tensioner by knocking out the insert and starting it at the first detent( replace if possible). turn the engine around by hand and double check your marks you may have to move one of your cams a tooth to the left or right. Good luck
Posted on Sep 09, 2009
SOURCE: mercedes c220
check your harness wire. Check if the wire coating is brittle then you have to change it. The original harness has a lifespan so what we did is to replace the wirings one by one with a japanese made wires that wont get brittle. More durable
Posted on Sep 10, 2009
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