Quote:
Originally Posted by wgilmore
I have always wondered about this too.
My engine is a 603.961 and sometimes when trying to get TDC I go a degree or so past TDC and turn back 1 or 2 degrees. I have never had a problem, but then I think my tensioner is hydraulic non-ratcheting type - I think. I would not think that a couple of degrees would harm anyting - maybe I'm wrong.
Anyway , I have done this a number of times without any incident - Yet....
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I have done this on other engines. My method in this case is to turn the engine backwards past the TDC point a few degrees using both the crank and the camshaft (to keep tension on the forward side of the chain), then come back forward to my setpoint.
I would be concerned about arriving at a setpoint going backward as you described because of possible errors due to slack in the chain or timing devices etc.