I just changed my head gasket on my 1975 OMC 140. My compression numbers before the change were:
#1 - 130
#2 - 90
#3 - 105
#4 - 120
Now after I changed the head gasket all my numbers are between 90-100. Whats wrong? Why I try to start it, it backfires a lot and I see a puff of smoke shoot...
Hello, I have a 1975 OMC 140 engine. The cap on the back of the manifold where the water comes in and cools the exhaust was leaking. I took it off and the gasket was all ripped and mostly not even there. I was wondering if I could use some waterproof silicone to put it back on until I can...
I have a 1975 OMC 140 and I cannot get it to start right. In order to get it started I have to turn the carburetor all the way as lean as it will go and it will start on the first turn, but as soon as it goes I have to throttle it all the way up and the boat barely does 5-10 mph. I have to go...
