I need a new prop.

[michaelthomasj]

Ok..first be gentle as i am new to boating. So new I have not taken the boat out yet, but the person i bought the boat from said i need a new prop because the one that is on the boat is beat up. The boat is a 1969 16 foot larson tri hull-open bow. The engine is a 1975 i believe? johnson 85 Hp. Not sure if i need to give anymore info. What prop should i get?

 

[steelespike]

Re: I need a new prop.

Read the stickies at the top of the page.
There should be a number under the prop nut or on the barrel.
You may be able to get the prop repaired at a prop shop.Then do some test runs and get the info to us.Max rpm and speed.Describe the performance.

 

[raysprops]

Re: I need a new prop.

Steelespike is giving you good advice. If the prop is original it should have the size and a part# (probably supercieded) under the prop nut and washer. If has been replaced with a newer prop the size will be stamped on the barrel between the blades, some thing like 12 1/4 X 19 or 13 X 17. do not confuse this with repair stamps which will be 3 to5/6 numbers and maybe a couple of letters. If you can't find the size because its painted over or worn off any reputable repair shop will have a pitch gauge and can also tell you if it's worth repairing.