Shaft or propeller knock

now that I know i need to remove the bearing. Anyone have any idea how? from the only video i have, i am struggling to see where the bearing is compared to stern tube. I may walk round the yard to see if I can see similar eslwhere.
 
I think when you clean the AF off the bearing housing you will find 2 screws going through a flange into the hull. Remove those and unscrew the housing from the stern tube. will probably need a bit of persuading as it will be bedded in sealer and has likely not moved for years. The bearing is a press fit, but may be locked in by one or 2 grub screws in the side of the housing. again under coats of AF! You may well be able to knock the bearing out with a suitably sized drift, but easier with a press.

Looks like the prop will come off easily, but of course even if the shaft is not worn you still have to shorten it. This might move the worn part away from the bearing.
 
Another possibility is the engine mounts have failed. This happened on a friends boat and only when we examined the boat properly when ashore did we spot all four mounts were broken!!! Fitted new mounts and cutlass bearing and all fine.
 
I did originally think it would be an engine mounting issue and was wondering about whether the coupling didn't offer the flexibility it once might have.
That said the points about shaft length and anode make sense.
If i need to remove or raise engine, might be as well as changing mounts anyway. Though I expect they are not cheap.
 
yes, it is a bit, but that is because the shaft is no longer properly supported by the stern bearing so there is effectively no firm support. It may well have caused some damage to the mounts but you really won't know until you get the shaft out, check that it is straight and not worn, shorten it replace the cutless and align it properly. No short cuts here I am afraid.
 
You must log in or register to reply here.

Share this page

Top