laika
Well-known member
Further to my earlier thread on my dripping shaft seal (grease insertion did radically reduce the dripping so thanks all, but it’s 11 years old), boat is now on the hard. pvb identified my Yanmar coupling as an “R&D coupling”. I have never undone this. Is it simply a case of undoing the 4 bolts which are perpendicular to the shaft, possibly prising the “jaws” apart with a screwdriver, sliding out the shaft then reversing the operation, tightening the bolts as tight as possible after the new seal is fitted? Or does this need removal of the coupling from the gearbox then using the shaft puller I don’t have to take it off the shaft?
None of my books seem to reference this coupling and I have form for undoing a load of bolts only to find I’ve misunderstood how a thing is put together.
None of my books seem to reference this coupling and I have form for undoing a load of bolts only to find I’ve misunderstood how a thing is put together.