40 hp 1964 Evinrude Big Twin - gears

[Bill Wilson]

I punched a hole in the lower gearcase cover and now the gears need to be replaced. Does anyone have a source for these parts? Model #40453S<br /><br />Thanks<br />bill

 

[Paul Moir]

Re: 40 hp 1964 Evinrude Big Twin - gears

Welcome to Iboats!<br /><br />If you've hit something hard enough to get a hole in the gearcase, I would replace the entire thing. There's little chance the driveshaft would still be in alignment. Lower units for your 40 appear all the time on ebay, or you could get them from one of the local or online outboard junkyards:<br />Twin City Outboards<br />Marine Parts Outlet<br />etc,<br /><br />But to answer your question, your local dealer _may_ have some gears for you but they're pretty pricey (~$300).

 

[Bill Wilson]

Re: 40 hp 1964 Evinrude Big Twin - gears

The hole in the gearcase came from within! Looks like the clutch dog and yoke became misaligned and broke sending shrapnel through the gear case. You are probably right though....a lower unit is in order since the pinion gear is not moveable by hand.<br /><br />thanks for your help.<br />bill

Originally posted by Paul Moir:<br /> Welcome to Iboats!<br /><br />If you've hit something hard enough to get a hole in the gearcase, I would replace the entire thing. There's little chance the driveshaft would still be in alignment. Lower units for your 40 appear all the time on ebay, or you could get them from one of the local or online outboard junkyards:<br />Twin City Outboards<br />Marine Parts Outlet<br />etc,<br /><br />But to answer your question, your local dealer _may_ have some gears for you but they're pretty pricey (~$300).

 

[Paul Moir]

Re: 40 hp 1964 Evinrude Big Twin - gears

Ah I see then. Looks like you're after more parts than the case is worth. Here's another source:<br /> Laing's