I have a 1987 4.3 OMC Cobra with overheating issues. Replaced impeller as well as the thermostat. I took it for another ride and it was still running around 180 -190. Got on it a little more and all of a sudden the RPM went through the roof and the prop quit spinning. The temp pegged the gauge...
Does anyone know if a plain old flywheel for a GM 4.3 ltr from napa or auto zone will work on a OMC 4.3 ltr. I wasn't sure if there was a difference. I can get a new flywheel for a GM 4.3 for about $80.00 from a auto part store but as soon as you try and buy it with a OMC part number from a...
I have a 1987 OMC Cobra 4.3 liter engine in my boat. This engine runs great, well at least it did. It starts everytime with just a bump of the key so starting is not normally a issue. It was running fine 15 minutes prior to the problem which I will describe. I was pulling my son on the tube...
