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Re: reverse rotation engines

Posted: Thu Apr 12, 2018 6:33 am
by Fastjeff
Okay, but they HAD to have different gears to work properly.

Jeff

Re: reverse rotation engines

Posted: Thu Apr 12, 2018 4:52 pm
by TinLizzy
On the camshaft or whatever turns the distributor maybe, but the distributor just has the slotted shaft coming out of it.

Re: reverse rotation engines

Posted: Thu Apr 12, 2018 9:19 pm
by EWRice
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.

Re: reverse rotation engines

Posted: Fri Apr 13, 2018 5:47 am
by Fastjeff
Right! Forgot about that. The assbackwards gear is on the oil pump driving shaft.

Thanks for cluing me in.

Jeff

Re: reverse rotation engines

Posted: Fri Apr 13, 2018 2:55 pm
by Busia
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

Re: reverse rotation engines

Posted: Wed Apr 18, 2018 9:26 pm
by Difrenzi
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?

Re: reverse rotation engines

Posted: Thu Apr 19, 2018 6:00 am
by Fastjeff
If that's a single screw, they usually are reverse rotation.

Jeff

Re: reverse rotation engines

Posted: Thu Apr 19, 2018 11:36 am
by bill
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