jlawley97 Posted September 7, 2019 Report Share Posted September 7, 2019 I just rebuild the engine new bearings and piston rings and all the gaskets Im getting water and oil mixing This isnt my first headgasket so Im pretty sure I did it correctly even then I checked the compression on all cylinders and its 150psi across the boardI DID let some coolant get in the oil ports when I took the head off but it couldnt have been much so is this normal amount of milkiness how many times should I redo the oil before I should stop trying lol Whatelse could it be? the timing cover isnt leaking either Quote Link to comment
datzenmike Posted September 8, 2019 Report Share Posted September 8, 2019 Looks like oil to me. Is the exhaust white and steamy? Is the coolant level always low and need topping up? There is an oil jet between the block and the head that feeds oil up into the head from the block. Water can't get in there and oil can't get out. Have never ever seen oil under 50 PSI allow water in. There is a drain back hole at the rear of the head that drains through the block and drops into the oil pan and of course the timing chain area .... these are the only way for water to get into the oil. Coolant in sufficient amount in the combustion chamber can work it's way down past the rings and mix in the oil pan. This is water mixed with oil. Quote Link to comment
jlawley97 Posted September 8, 2019 Author Report Share Posted September 8, 2019 Okay that makes me feel better Quote Link to comment
datzenmike Posted September 8, 2019 Report Share Posted September 8, 2019 Keep an eye on coolant and oil levels. (you should be anyway) Any sudden loss/gain should be looked into. Quote Link to comment
MikeRL411 Posted September 10, 2019 Report Share Posted September 10, 2019 (edited) Some head gaskets are supposed to have a copper crusher gasket around the water to head gasket hole, but after market purveyors often "forget" this copper as a cost savings move. Close spacing to the number 4 cylinder may encourage small water leaks. I have also seen short lengths of copper tubing with a washer firmly attached to its middle to serve as a guide and water seal against the block and head. Also look for a chip-out in the rim of the cylinder at the head. Edited September 10, 2019 by MikeRL411 added caution Quote Link to comment
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