new update on the 1960 40 hp johnson

[pinto 21629]

well i took the head off boy o boy well the one valve was ok but the other i had a time getting it out a good bit of carben on it got it out and there is like a spacer or o ring that is on one but gone on the one that was leaking and i found out where the water was comming from the valve burned a hole in the head cover gasket i dont know what to do about the valve that is missing the little o ring i would try to get a new valve but i may have a hard time finding one can this on be fixed ??????

 

[pinto 21629]

Re: new update on the 1960 40 hp johnson

Member # 31253 <br /><br /> posted September 17, 2005 12:29 AM <br />--------------------------------------------------------------------------------<br />i have a 1960 johnson super sea horse 40hp/rds 22 well it has the compression relief valve head it keeps blowing the gasket on the top cover i have put a new one in three times in the past year i even used high temp rtv sealent blowed the rtv all the way out last saturday i went out fishing and it blowed i took the cover off the motor and it was spitting water out the side of the small cover and when i looked at it looked like the cover was warped out where the water was coming out but that was right after i turned the motor off still hot from runningi know the warped spot is why the gasket is blowing but how can i fix it and i dont know if i will be able to find a new cover if it damaged hard to find motor in my area because the gaskets i had to go to a auto store and buy gasket stuff and cut out my owne because the boat store where i got my head gasket/carb kit.....said can no longer get and can i use jb weld to seal the covers if they are warped and cant find new ones im tired of changing gaskets every time i go fishing ?????? HELP PLEASE<br /><br />--------------------<br />pinto

 

[pinto 21629]

Re: new update on the 1960 40 hp johnson

Member # 6826 <br /><br /> posted September 17, 2005 10:12 AM <br />--------------------------------------------------------------------------------<br />Pinto.... I assume you're speaking of the domed cover that houses the compression release area of the 1960 and 1961 40hp Evinrude/Johnson.<br /><br />The only reason that dome would blow out is that the Compression Release Valve is not seated properly in the cylinder head.... that is, in the combustion chamber. A faulty or improperly adjusted valve would be leaking the full power of each and every combustion explosion up into that dome/cover.<br /><br />You'll need to remove the cylinder head, remove the valve, then (if possible) reseat that valve with valve seating compound which is available at any automotive parts type store.<br /><br />When the valve(s) are seated properly, you could even run the engine without those domes if you cared to.... but it would look sorta weird!<br /><br />The water? That's got to be a seperate problem involving the water jacket plate/gasket (the plate bolted to the head with many 7/16" hex head bolts).<br /><br />However, at any rate, with the cylinder head off, you can correct both problems.<br /><br />--------------------<br />ReevesJ32@aol.com<br /><br />30+ Years With OMC