reverse rotation engines

Fastjeff
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Re: reverse rotation engines

Postby Fastjeff » Thu Apr 12, 2018 6:33 am

Okay, but they HAD to have different gears to work properly.

Jeff
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TinLizzy
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Re: reverse rotation engines

Postby TinLizzy » Thu Apr 12, 2018 4:52 pm

On the camshaft or whatever turns the distributor maybe, but the distributor just has the slotted shaft coming out of it.
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Re: reverse rotation engines

Postby EWRice » Thu Apr 12, 2018 9:19 pm

Distributor/oil pump drive shaft and gear is a separate part from the distributor that fits down in engine block. Distributors are identical and interchangeable. The drive gears are machined with opposite helix to give reverse rotation to crank and cam while retaining clockwise distributor rotation.
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Fastjeff
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Re: reverse rotation engines

Postby Fastjeff » Fri Apr 13, 2018 5:47 am

Right! Forgot about that. The assbackwards gear is on the oil pump driving shaft.

Thanks for cluing me in.

Jeff
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Busia
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Re: reverse rotation engines

Postby Busia » Fri Apr 13, 2018 2:55 pm

It's simple. A reverse ground gear on a reverse turning engine will spin it in the normal direction. Two wrongs do make a right
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Difrenzi
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Re: reverse rotation engines

Postby Difrenzi » Wed Apr 18, 2018 9:26 pm

New owner here, 28’ flybridge 1978, I would like to know if my motor is reverse or standard rotation. If I’m looking forward which direction should motor be spinning? Clockwise or counterclockwise?

Fastjeff
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Re: reverse rotation engines

Postby Fastjeff » Thu Apr 19, 2018 6:00 am

If that's a single screw, they usually are reverse rotation.

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bill
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Re: reverse rotation engines

Postby bill » Thu Apr 19, 2018 11:36 am

BigM
Difrenzi, :D
The info you request can be found in the vender section page 2,15 lines down or
simple look here. :roll:
https://bpi.ebasicpower.com/faq/starterrotate.htm

bill
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