georgeJeff
Cadet
- Joined
- Oct 18, 2013
- Messages
- 28
Just bought a 56 alumacraft with a 1964 evinrude 9.5 sportwin ($300). I wanted to replace the impeller, all four bolts on the lower were already broken, how lucky was I that I didn't have to go to the trouble to break them. Ran the engine before purchase, seemed to run great in the tube of water. Replaced the impeller, sparkplugs, oil in the LU, all fuel lines, you get the idea. Headed to lake, engine ran terrible, strong miss, worse at high rpm.
Got it home started the diagnosis in my head, decided it had to be the "head gasket". 60 top and 63 bottom psi when cold, 33 top and around 70 bottom psi when hot. I know 2-strokes don't have heads, but that gasket under the plate over the pistons. 7 of the 8 bolts in that plate broke off. Got the plate off and sure enough lots of milk and water on the top piston. Have now decided that the engine had to be in salt water, and I am tired of fooling around with it and its broken bolts. My neighbor got me a "parts engine". It is a johnson 9.5 that looks exactly the same as the evinrude except its white. The numbers on the plate, from memory are J23D3645. I have unshucked the johnson motor and it looks clean.
The Question: The Johnson looks like it will fit in the evinrude clam, can anyone confirm this. Oh, by the way, the Johnson was free because the owner backed it into a curb and broke the swing arm, the johnson clamshell is trash.
Thanks to all.
Got it home started the diagnosis in my head, decided it had to be the "head gasket". 60 top and 63 bottom psi when cold, 33 top and around 70 bottom psi when hot. I know 2-strokes don't have heads, but that gasket under the plate over the pistons. 7 of the 8 bolts in that plate broke off. Got the plate off and sure enough lots of milk and water on the top piston. Have now decided that the engine had to be in salt water, and I am tired of fooling around with it and its broken bolts. My neighbor got me a "parts engine". It is a johnson 9.5 that looks exactly the same as the evinrude except its white. The numbers on the plate, from memory are J23D3645. I have unshucked the johnson motor and it looks clean.
The Question: The Johnson looks like it will fit in the evinrude clam, can anyone confirm this. Oh, by the way, the Johnson was free because the owner backed it into a curb and broke the swing arm, the johnson clamshell is trash.
Thanks to all.