Dismantling propshaft

Ric

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On my boat the propshaft is bolted with three big bolts to output shaft of my Volvo MD2020. If I undo the bolts, my propshaft will still have a sort of plate/flange thingy attached to the end of it. How can I take this bit off the propshaft itself? I haven't yet dismantled it all to have a look - would just like to know if it is possible.

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roger

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A typical arrangement is that the prop shaft has a key way cut into it and so does the joining flange. A key takes the torsion and it is held in place by a set screw. It may then come apart whhen you undo the set screw - otherwise you use a puller bought from your nearest car accessory place.

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rich

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otherwise you use a puller bought from your nearest car accessory place.
Or Hacksaw,,,,,

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Heckler

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ive got a 2030 and i suspect the fixing will be simila, undo the allen screws holding the flange to the gearbox flange, should be vtight!!. there is an allen screw with a nut on it going thru the boss of the flange that bears down on the key, and also 2 allen screws that go thru the splits on the flange. take out the screws thru the split, loosen the nut on the allen screw that bears on the key way, take out the allen screw. get a screwdriver and gently hammer it into the split on one side, that will loosen the grip of the flange on the shaft, then pull the shaft out of the flange.
stu

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MainlySteam

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As all the others have said, but also if the coupling was done correctly in the first place (many are not) there may also be a machine screw through the front face of the coupling half on the propellor shaft axially into the end of the shaft - that in order to stop the shaft coming out of the boat if one engages reverse and the coupling has come loose on the shaft.

John



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