Transmission ratio

Sutric

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Jun 24, 2021
42
Seafarer 26 Carlyle IL
Greetings, I'm shopping for a propeller for my 1993 Hunter 33.5, with a Yanmar 3GM30F and a Kanzaki KM3P. The issue I'm having is that everyone wants to know the gearbox ratio and I can't find it! For reasons unbeknown to me it's not stamped on the tag! Do any of you fellow 33.5 owners with a 3GM30 and a KM3P know what your ratio is?
 

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Jan 7, 2011
5,694
Oday 322 East Chicago, IN
Supposed to be right there…I can make out a faint “2” I think.

This is what it should look like…
IMG_4371.jpeg

I don’t know what the options were on the KMP3.

Greg
 
Jan 7, 2011
5,694
Oday 322 East Chicago, IN
I also see references to a 3.20:1. And a 2.61:1 gearing.

I wonder if you can put more light on the tag or clean it with something to try and make the gear ratio more visible?

Lastly, since you can make out the serial number, maybe a call or email to Yanmar / Kanzaki can confirm which gear ratio your tranny has.


Greg