LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

How to turn over engine?

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Old 05-12-2006, 04:06 AM
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How to turn over engine?

Ok... say you pull the hub off the crank at 12 o'clock and then you pull the timing cover off and find out that the hub was previously installed incorrectly. At this point how do you crank the engine over to get to cylinder 1 at TDC?... I already tried pulling out the plugs and then trying to turn the engine at the flywheel but trying to push the flywheel by the ring teeth with a large screwdriver didn't work too well and I can't get the torque converter cover off all the way (without removing a header) to try and just turn the flywheel with my hands.
Can I just put the crankshaft hub bolt back in without the hub and then turn the engine over to get it back at TDC on cylinder 1 and then just throw a strap wrench over the end of the crank shaft (to hold it) and pull the bolt back out???
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Old 05-12-2006, 06:13 AM
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Re: How to turn over engine?

is the starter on it? disconnect the ignition and bump it. Youll atleast get it fairly close.
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Old 05-12-2006, 01:08 PM
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Re: How to turn over engine?

the battery is completely dead...
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Old 05-12-2006, 01:15 PM
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Re: How to turn over engine?

Ideally a crank turning nut, but I'm assuming you're not looking for that answer

Put the bolt back in with some washers underneath and meatspin the engine. Once you get it where you want try holding the crank like you said and put the bolt back on. If you can't hold it, just make some kind of mark to reference on the crank to put it back on at 12 oclock. An impact wrench to get it out would work well also.
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