Hey guys I need someone to give me some ideas that I haven't thought of. With my 1985 MCM 140 3.0 I have water squirting out the #4 plug. I have had the head resurfaced intake/exaust portion of the head resurfaced. I found a crack in the water jacket portion of the block last year and stiched it with plugs and j-b weld all good on the outside (no leaks) I see no obvious cracks in cylinder wall. Intake and riser tested with acatone for leaks none found. compression is even across all clynders 152-157 lbs. There is water in oil. Is this an internal crack in the block? I don't want to go there but need to know. Thanks dc1962
