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Propeller Installation SPI 32

Posted: Mon Nov 26, 2018 11:57 am
by BeaconMarineBob
Standard Practice Instructions #32
Also see: http://www.trojanboats.net/trojan-std-p ... -nuts.html

Re: Propeller Installation SPI 32

Posted: Mon Nov 26, 2018 7:18 pm
by delusional
Is the diagram contradicting the instructions? Looks like the thin or jam nut is second nut on shaft in drawing. Maybe I'm misinterpreting these instructions ?

Re: Propeller Installation SPI 32

Posted: Tue Nov 27, 2018 7:44 pm
by P-Dogg
delusional wrote: Mon Nov 26, 2018 7:18 pm Is the diagram contradicting the instructions? Looks like the thin or jam nut is second nut on shaft in drawing. Maybe I'm misinterpreting these instructions ?

Rot roh! Delusional is not delusional!

The navy has some guidance on this matter: https://fas.org/man/dod-101/sys/ship/nstm/ch075.pdf Se page 75-96 or so.

Re: Propeller Installation SPI 32

Posted: Tue Nov 27, 2018 8:06 pm
by prowlersfish
Thin nut first is sop . But if you walk around a boat yard you will find about 1/3 to 1/2 on wrong . And if you find a loose prop nut 90% of the time its the starboard side . And the nuts ? its a mix of both ways .

Re: Propeller Installation SPI 32

Posted: Wed Nov 28, 2018 12:58 pm
by WayWeGo
And WayWeGo is one of those boats that are not installed correctly. She came to us that way and I decided to leave it until the first time the props come off. So far, no issues, but I do check when out of the water and there are cotter pins installed.