putting cylinder head back on - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 03-15-2007, 11:58 PM Thread Starter
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putting cylinder head back on

i just got my cylinder head rebuilt. now please remember...... i am a novice mechanic. i had marked the top of the camshaft before sending it out. should i bring the cam back to where it was and put the head right back on the block, or should i try and put cylinder 1 at tdc. if i try tdc, can i just put the distibuter back in. i am worried i might do some damage. have not moved the part in the distributor that turns. please someone give me some advise. i dont want all my hard earned money going down the drain. thank you
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post #2 of 3 (permalink) Old 03-16-2007, 01:38 PM
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Ideally, you marked the relative position of the cam gear and the chain, AND nothing has moved since you disassembled it, so that the #1 piston is still at TDC and the distributor is at or about the same (not counting those few degrees off for timing).

If that's the case, just reassemble it, but be warned, you can put the cam gear on the cam 180 out of phase and still have the chain line up with the marks (the washer with the timing mark has two notches on it).

At TDC on the intake stroke (at or about where the plug fires), both valves are closed. That means both cam lobes for the cylinder point away from the valves.

Once you reassemble it, you're going to hand crank it around a few times to make sure that everything moves smoothly (keep the plugs out for that).

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post #3 of 3 (permalink) Old 03-17-2007, 09:59 PM Thread Starter
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when i took off the head, it was not at topdeadcenter though. i put a notch on the cam shaft though. should i just bring the camshaft back to its original location. thanks
the distributor is still pretty much in its original setting. would it be better to just put it back like that. thanks
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