Offshoreonly.com - What gear ratio

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holorinhal

08-26-2009 10:03 PM

What gear ratio

How do I find out what gear ratio I have in My drives.
They are twin Merc 888/ 302 I Think that is pre alpha?

hoozeyurdaddy

08-30-2009 08:55 PM

it should be stamped on the side of the drive with the serial #, if not you can take the top cap on the drive off and count the teeth on the gears, I would guess they are 1.65:1.

picklenjim

08-30-2009 11:05 PM

http://www.perfprotech.com/store/ass....aspx#assembly

According to the parts manual those have a 1.5:1 gear ratio.Gear set is parts #22 in diagram.If you want to check put it in forward and crank the engine over by hand.One and a half revolutions should turn the prop one.Those drives were made from 1971-1977.I was surprised to see most parts are still available for them.

This place also has the stickers you were looking for on Speedwake.http://www.perfprotech.com/store/ass....aspx#assembly

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