6 hp conversion from long shaft to short shaft

PFS

PFS

Cadet
Joined
Nov 6, 2009
Messages
16
I just bought a 1975 6 hp model 6R75R long shaft motor. I want to convert it to short shaft for my little 12' aluminum boat, and I want to know if this is a big deal. It seems pretty simple to me, but I thought it toss it around here first.
 
T

tmcalavy

Rear Admiral
Joined
Aug 29, 2001
Messages
4,005
Re: 6 hp conversion from long shaft to short shaft

Never done one as new as yours, but on the older motors the swap entails the exhaust housing/leg extension, driveshaft, water tube and shift rod connector. If you do your own motor maintenance it's not hard to do...helps to have a good manual and be familiar with your motor.
 
jasper60103

jasper60103

Commander
Joined
Sep 18, 2008
Messages
2,055
Re: 6 hp conversion from long shaft to short shaft

Finding the parts cheap is the key. FWIW, a 6 hp in a long shaft is kinda rare. I don't think you would have much trouble selling or trading it for what you want.
 
Vic.S

Vic.S

Rear Admiral
Joined
May 4, 2004
Messages
4,699
Re: 6 hp conversion from long shaft to short shaft

Remove the exhaust housing extension, replace the drive shaft and upper shift rods with parts for the standard shaft model. Shorten the water tube by 5".
The drive shaft is best part of $300 if you have to buy new. Both the drive shaft and the shift rod are in short supply.
 
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