md7a

[billy_bros]

Since my boats been out of the water for the winter I have noticed that the prop shaft has become stiff to turn. Any suggestions what might be the problem?

 

[johnsomerhausen]

Are you sure the gearbox is in neutral ? You can check that by lifting the decompression lever, turning the engine by hand on the flywheel and checking whether the pro shaft moves or not
john

 

[david_bagshaw]

Assuming the md7a is shaft drive.

Does the shaft have a cutless bearing , if so just wet it.!! & all will be free again.

David
www.euroboating.net


Ps welcome to the BB !!! happy sailing

 

[Guest]

If the boat is supported ashore, sometimes they bend a bit, and then all the engine, shaft, sterngear etc is slightly out of line. If this is what has happened it wil all bend back when it goues in the water.

 

[Guest]

I hope you have better luck than me - I had the same problem and it turned out to be a bent prop shaft! Also I had been using the wrong grease (Castrol LM) and it had gone glue like in the shaft tube, creating loads of resistance to turning. Try checking your grease.

 

[vyv_cox]

Almost certainly the cutless bearing that has dried out. Major engineering problems like bent shafts and seized gearboxes don't occur when the boat is on the hard. If I need to rotate the shaft with the boat on the hard I squirt some washing-up liquid on the bearing. This is OK for hand turning but if you run the engine play a hose on the cutless.