1965/66? Mcculloch 45hp Outboard

[Ksoder]

Hello all, I have recently purchased a mid 60's Glasspar Marathon with a 45hp Mculloch 2 cylinder on the back... I think the model number for the engine is 65304540... One of the Cylinders doesn't have compression, I don't need any guides on repairs (yet) but does anyone have any sources for parts for this engine or does anyone have any ideas on what other outboards would be good for it? My budget isn't very high so no brand new 4 strokes for me thanks... Probably anywhere from 45-60 hp is the preferred range.

 

[matt167]

Cool motors, long defunct. Parts supply is gone... This guy has torn motors down for parts, and is your only hope. But with zero compression on a cylinder it's probably a parts motor too. https://thebrazilianconnection.com/ScottAtwater Indexsouth.html

I think it needs a Mercury 500 4cyl which in the later years was a classic 45hp

 

[Ksoder]

Cool motors, long defunct. Parts supply is gone... This guy has torn motors down for parts, and is your only hope. But with zero compression on a cylinder it's probably a parts motor too. https://thebrazilianconnection.com/ScottAtwater Indexsouth.html

I think it needs a Mercury 500 4cyl which in the later years was a classic 45hp

where would you recommend lurking for deals on cheap outboards?

 

[matt167]

Facebook marketplace, Craigslist. But a cheap outboard should come with paddles

 

[Ksoder]

I took the head off, and to my surprise, the cylinder was perfect looking, not gouges or anything... the metal ring around the head gasket's cylinder section had some rust on it, so I ordered a new thermostat and Head gasket in hopes that the compression loss was a bad head gasket. Also on a ride note, turning the flywheel one direction, there is a definite hard to turn spot, but turning it the other direction is totally fine, any ideas?

 

[flyingscott]

There are many places.to get parts for those motors. The AOMCI is one and if you google for parts at least 2 places will come up.