need to determine what prop I need

[scotty 500]

hello,and thanks in advance for any help.. I have a 1986 Larson menza,with a 190 motor and alpha 1 .. I need a new prop but don't know how to determine the pitch I need,,

 

[cyclops222]

What tests and results told you that you need a new / different prop ?

 

[scotty 500]

What tests and results told you that you need a new / different prop ?

the prop hit a sand bar and chewed up the blades

 

[cyclops222]

Hopefully you can remove the prop and find the prop pitch, # of blades, Aluminum or S S and diameter on the inside ring of the prop.

 

[scotty 500]

Hopefully you can remove the prop and find the prop pitch, # of blades, Aluminum or S S and diameter on the inside ring of the prop.

ok thank you,will do

 

[airshot]

Was the prop performing OK before the damage ? If it was, then just replace it with the same make and model...

 

[scotty 500]

Was the prop performing OK before the damage ? If it was, then just replace it with the same make and model...

yes it was good..thanks for the reply

 

[Scott06]

yes it was good..thanks for the reply

If you were happy as is and the engine was able to hit the correct WOT RPM then get it repaired or get the same thing. If you post pics of [prop and part numbers on it we can probably figure out what it is

 

[Texasmark]

Get he prop ID either with a part number or diameter and pitch with somebody's LOGO molded or stamped in the side of the barrel for that and/or one end of the prop hub , either the rear or front of the prop near the prop shaft area.

If that doesn't work take it to a prop shop and maybe there is enough of a blade left whereby they can determine the pitch and diameter, and rake or cupping and repair it. I bought a new 1972 Johnson 125 that had an aluminum prop and it was totally unsuitable for that much HP. Every weekend we would be out in a newly filled lake, lots of tree limbs still intact and on Mondays on lunch break I'd take it over to the prop shop and have it renewed.

The bright side of a prop for that engine was the next year, 1973, OMC came out with the SST....Stainless Steel with a Teflon coating....to resist corrosion. Cost me $185 and I never had to go back to the prop shop.....was a heck of a deal when you figure what I spent over that first year on prop repairs.

 

[scotty 500]

Get he prop ID either with a part number or diameter and pitch with somebody's LOGO molded or stamped in the side of the barrel for that and/or one end of the prop hub , either the rear or front of the prop near the prop shaft area.

If that doesn't work take it to a prop shop and maybe there is enough of a blade left whereby they can determine the pitch and diameter, and rake or cupping and repair it. I bought a new 1972 Johnson 125 that had an aluminum prop and it was totally unsuitable for that much HP. Every weekend we would be out in a newly filled lake, lots of tree limbs still intact and on Mondays on lunch break I'd take it over to the prop shop and have it renewed.

The bright side of a prop for that engine was the next year, 1973, OMC came out with the SST....Stainless Steel with a Teflon coating....to resist corrosion. Cost me $185 and I never had to go back to the prop shop.....was a heck of a deal when you figure what I spent over that first year on prop repairs.

thanks for the comeback,,I did indeed find it stamped on the prop..I have one ordered.thanks again