papafarms Posted April 1, 2012 Share Posted April 1, 2012 Hi guys, hope all is well with everyone as we approach Easter, just checked the compression on my engine cylinders as follows 1,2,3,5,6,8 all checked at 90lbs., 4 was 80 lbs. and no. 7 was at 70 lbs., so what are you guys reccommendations as what to do, the engine is coming out no matter what so i am all ears, thanks bob Link to comment Share on other sites More sharing options...
Mark Shaw Posted April 1, 2012 Share Posted April 1, 2012 It appears that #7 at least needs to be lapped, but if you are pulling the head, just do them all. You may find #7 is a burnt valve that needs to be replaced. Link to comment Share on other sites More sharing options...
Guest Grant Magrath Posted April 2, 2012 Share Posted April 2, 2012 Squirt some oil down the plug hole. If the compression comes up, rings, if no change, Mark's diagnosis is on the money!CheersGrant Link to comment Share on other sites More sharing options...
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