Is my prop aluminum or stainless?

swalk1982

Cadet
Joined
Apr 11, 2010
Messages
14
I assume it's aluminum but am not sure. The only numbers I could find on it is the diameter and pitch: 14 1/4x21. It's on a 1990 Johnson 150GT. What brand of stainless prop do you guys recommend and where should I buy it? Any special tools needed for install?
 

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180shabah

Rear Admiral
Joined
Mar 26, 2005
Messages
4,995
Re: Is my prop aluminum or stainless?

it is aluminum.
You should buy your new prop at iboats - scroll up ^^^

Can you give soe details about your current props performance?
What are you trying to accomplish with a new prop?
Why do you want SS?
 

swalk1982

Cadet
Joined
Apr 11, 2010
Messages
14
Re: Is my prop aluminum or stainless?

Don't really have much info about the current props performance. Just bought the boat and have only had it out once. I plan on skiing a lot and top speed is not that important. I think I will get a 19 pitch for more pulling power. I am looking at the Stiletto Advantage II. Are they any good?
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Is my prop aluminum or stainless?

Aren't you getting the proverbial cart before the horse? You've only had the boat out once, have no performance data and are ready to pop for a prop that you have no idea if it's right or not. We can't help you determine that until you make some wide open throttle runs with what you consider an average load. If the engine runs at or very near the top of the recommended RPM range then the prop you have is correct. If not -- it isn't. You then make corrections from there. You also don't know if the engine height is correct. With the engine down, check the position of the AV plate in relation to the bottom of the boat. Let us know what you find.
 
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