Prop for 2017 R25-SC

[John McCurdy]

My new-to-me prop is slightly bent and therefore I'm experiencing vibrations at high RPM. I don't want to talk about how it got that way, but I won't do that again. At any rate...

I intend to send the prop to be repaired but feel there is a good argument for replacing it with a new prop and keeping the current as a spare. In case I do, in fact, do that again.

I've tried to determine which prop, exactly, is installed on the boat. I've got a message out to the parts distributor now for well over a week, and an email to a prop dealer. I've scoured TugNuts but haven't found a make/model.

Does anyone know how to get this information???

Thanks, as always,

John

 

[Seakr25]

Should be stamped on the old prop somewhere. Mine was on my 2008 R25. Factory looked to be 17r14 with QSD 150HP but it was repitched to 17r12 with a repower to QSD 130HP 10 years ago ..... I've very recently repowered and she is now on her third engine running a 17r14 again also. A good prop shop should be able to make the calculations pretty close based on diameter , engine HP, weight, etc .... they originally calculated a 17R17 for my repower but we pulled back to the 17R14 after sea trials so the new engine could hit full rated RPM as intended.

I replaced with a VERY similar looking prop so it very well could be the same brand... Michigan Wheel is t he Brand. Hope it helps.

 

[scross]

Our 2009 R-25 Classic with a Yanmar 4BY2-150 had an Acme prop 2318 19.0 x 23.0, 4 blade, RH, no cup. 1.5” shaft.

Whoops, my bad! That’s the prop specs on our 2017 C-28. Pulled the wrong file up!

 

[John McCurdy]

Our 2009 R-25 Classic with a Yanmar 4BY2-150 had an Acme prop 2318 19.0 x 23.0, 4 blade, RH, no cup. 1.5” shaft.

Thanks for that, but our boat has the Volvo Penta D-150 and a 3-blade prop.

 

[Seakr25]

Our 2009 R-25 Classic with a Yanmar 4BY2-150 had an Acme prop 2318 19.0 x 23.0, 4 blade, RH, no cup. 1.5” shaft.

how in the world did you fit a 19" prop on the R25 classic! ... I have the same hull and 17" gives me just 2" clearance from tip to hull , was your clearance down to 1" from prop tip to hull? Any cavitation issues?

 

[scross]

how in the world did you fit a 19" prop on the R25 classic! ... I have the same hull and 17" gives me just 2" clearance from tip to hull , was your clearance down to 1" from prop tip to hull? Any cavitation issues?

You’re correct - not the data for the R-25. My bad!

 

[John McCurdy]

Go it...the correct prop is an ACME model number 1386, 17x14.

 

[Seakr25]

Go it...the correct prop is an ACME model number 1386, 17x14.

glad you found. it.