Asking for a friend. He has a large Mercruiser that he was told has a bent prop shaft. He would need this checked and replaced and he wants to replace the aluminium prop with stainless while he is at it. A shop tore it apart then something happened and he is left with the unit and all its parts in a box. I could do it, but just don't have the time and no experience with these. I'd prefer to refer him to a good shop. He lives near Lake Ray Hubbard so looking for something preferably more East than say up toward Louisville unless it is someone really highly recommended.
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If you can rebuild a Holley you can rebuild an outboard engine. You need a pair of V blocks and a dial indicator to check the shaft for being bent. Give it a shot yourself and save a pile of money. Just by a prop off of Ebay if you know the spec you need or try James Propeller in Dallas.Magnus, I am your father. You need to ask your mother about a man named Calvin Klein.
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It would be pretty unusual to bend the prop shaft with an aluminum prop... as the prop will fold up long before the shaft would bend. (It's possible to bend with and aluminum prop, just unlikely as you would really have to have a large solid impact) Check the prop shaft on V blocks with a dial indicator. More than .006" movement is out of spec and could be replaced, although that not really terrible. Once you get past .020"+ it becomes a concern.
We replaced hundreds of 'em at my marine dealership over the years...
If it gets down to it, check out the SEI replacement lower units, it's an aftermarket unit but much less expensive than the OEM and identical in appearance and function with a great warranty to back 'em up...
Mercbuff on here still does a limited amount of boat work at his home shop... PM him to see if he's interested.
Good Luck
mardynLast edited by mardyn; 02-01-2019, 09:41 AM.
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Originally posted by mardyn View PostIt would be pretty unusual to bend the prop shaft with an aluminum prop... as the prop will fold up long before the shaft would bend. (It's possible to bend with and aluminum prop, just unlikely as you would really have to have a large solid impact) Check the prop shaft on V blocks with a dial indicator. More than .006" movement is out of spec and could be replaced, although that not really terrible. Once you get past .020"+ it becomes a concern.
We replaced hundreds of 'em at my marine dealership over the years...
If it gets down to it, check out the SEI replacement lower units, it's an aftermarket unit but much less expensive than the OEM and identical in appearance and function with a great warranty to back 'em up...
Mercbuff on here still does a limited amount of boat work at his home shop... PM him to see if he's interested.
Good Luck
mardyn
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