Propeller Installation SPI 32

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Propeller Installation SPI 32

Post by BeaconMarineBob » Mon Nov 26, 2018 11:57 am

Standard Practice Instructions #32
Also see: http://www.trojanboats.net/trojan-std-p ... -nuts.html
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delusional
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Re: Propeller Installation SPI 32

Post by delusional » 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 ?

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Re: Propeller Installation SPI 32

Post by P-Dogg » Tue Nov 27, 2018 7:44 pm

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.
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prowlersfish
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Re: Propeller Installation SPI 32

Post by prowlersfish » Tue Nov 27, 2018 8:06 pm

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 .
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WayWeGo
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Re: Propeller Installation SPI 32

Post by WayWeGo » Wed Nov 28, 2018 12:58 pm

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.
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