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Post by flopes on Jul 5, 2010 15:50:11 GMT
Does anyone know how to "dismantle" the coupling betwen the shaft and the engine( a Yanmar 2gm20f) of a Sun Fast 32 I(2002). I must do it to change the VOLVO dry stuffing box!
TKS
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Post by electricmonk on Jul 10, 2010 6:50:26 GMT
I had a similar problem on my SO43, in the end we had two choices, Remove the engine and gearbox or cut the shaft, we cut the shaft.
Out of curiosity we put the coupling in a 50 tonne hydraulic press to see if we could part the coupling, we could not shift it, the consensus was that it was assembled by cooling the shaft in liquid nitrogen and then pressing the coupling on.
We now have a stainless split coupling and an RD joint and it works well and removing the shaft is easy and the engine is quieter.
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