importwarrior Posted November 25, 2014 Report Share Posted November 25, 2014 Can a bad head gasket Cause excessive crank case pressure? Link to comment Share on other sites More sharing options...
ucw458 Posted November 25, 2014 Report Share Posted November 25, 2014 Missing a word in that sentence but yes it can. Though it is exceedingly rare. It would have to blow causing a passage to an oil drain location. Most common causes for excess crankcase pressure are rings, clogged vent system and excessive exhaust back pressure. Link to comment Share on other sites More sharing options...
importwarrior Posted November 25, 2014 Author Report Share Posted November 25, 2014 LoL yup fixed it. Thanks, If it is the rings i guess i need a rebuild. this will be horrible.i just don't have the time or place to do a rebuild. . Link to comment Share on other sites More sharing options...
Starfighterpilot Posted November 26, 2014 Report Share Posted November 26, 2014 LoL yup fixed it. Thanks, If it is the rings i guess i need a rebuild. this will be horrible.i just don't have the time or place to do a rebuild. . To eliminate the head gasket as being the cause run a set of hot and cold cylinder compression pressure tests. If you have a low pressure cylinder(s) squirt some oil into the low one(s) through the spark plug hole. Rerun the pressure test and see if pressure comes up. If it doesn't, then there is a head/ head gasket problem. If pressure comes up, then it's worn rings. That's the only way to know for sure if you have worn out rings. For What It's Worth. KEN Link to comment Share on other sites More sharing options...
StarquestRescue Posted November 27, 2014 Report Share Posted November 27, 2014 If it is the rings i guess i need a rebuild. this will be horrible.i just don't have the time or place to do a rebuild. .My money says it is broken ring lands. You are going to have to find a way to deal with it. Link to comment Share on other sites More sharing options...
importwarrior Posted November 27, 2014 Author Report Share Posted November 27, 2014 Great info. Thanks Ken. I will get to testing this weekend. Link to comment Share on other sites More sharing options...
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