need help choosing prep sizes

[tbsteverson]

I have a1976 25HP evinrude that I'm trying to find the biggest size I can get. I'm having trouble with it I think. It acts like it is slipping. So it will be helpful if any advice on it thanks.

 

[steelespike]

Re: need help choosing prep sizes

delete

 

[steelespike]

Re: need help choosing prep sizes

If you suspect the hub is slipping remove the prop and draw a waterproof line across the hub and body test it and check if the line is broken. What are you running the motor on?What do you want to accomplish?
It appears here at iboats a 9 1/4 X 11 is the "biggest" prop also in 76 the 9 1/4 X 11 was the "biggest" available in the brochure.
Of course there may be some specialty props floating around.

 

[tbsteverson]

Re: need help choosing prep sizes

Yea I must of had a misspell on prop. Doing this on my phone. I'm running it on a 12 ft alum boat. But the biggest I found was the same as you found. But I think it is slipping plus it is bent so I'll buy a new one.