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Old 14 Jul 2007, 06:31 pm
jim beam
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Default Re: Rotating Engine Using Wheels?

Elle wrote:
> 91 Civic, manual transmission, here. I am doing a timing
> belt replacement. The front of the car is on jackstands, and
> I put the transmission in 5th gear. I freed the pulley bolt
> just fine, but then I wanted to rotate the engine so #1
> piston was at TDC blah blah. I thought turning either of the
> front wheels by hand would, via the manual transmission,
> also rotate the engine. But no luck. I put the pulley bolt
> back in and rotated the engine to get #1 to TDC. As I turned
> the crankshaft pulley (via a socket on the pulley bolt), the
> front wheels turned roughly in synch with the pulley's
> rotation just fine.
>
> What might have prevented my turning the engine by manually
> turning the front wheels?
>
>

compression and gear ratio. and you need one wheel locked if you want
to do it by turning the other. should be easy enough in top gear.
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