Left or right thread on Oceanis 37 prop coupling nut

[Rob Heath]

Hi
Does anyone know whether the nut that holds the prop shaft to the gearbox coupling is left or right threaded please?
We have a Yanmar 3YM on our Oceanis 37
Regards Rob

 

[Rob Heath]

It's a right hand thread!
But any ideas on getting the flange off appreciated?

 

[Mechone]

Off of what ? The shaft? A puller and sometimes a bit of heat on the coupling ,hold the heat in one spot with the puller under tension . Do you have a nut in the middle? If so your coupling and shaft have a morse tapper , mine has 2 setscrews ,thus being straight shaft

 

[Rob Heath]

This bit..

 

[Mechone]

A puller and a bit of heat from a propane torch and it will pop right off