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Tech Question
Rick Rickman, Denver CO, 77 dodge van 440
I have a serious oil leak that appears to be from the head gasket right between cylinders 5-7 back left. This seems to be a high presure leak since it sprays the frame and every thing in between oil drips from everything. The valve cover is dry as is the back of the engine. Could this just be a blown head gasket or more serious such as a cracked head or block. I am not familuar with the oil flow in a 440 so I am looking for a little guidence. Also only leaks under load little to none at idle. The previous owner had the engine replaced with a rebuild shop motor about 5 years ago but has only about 5K miles on it.
Thank you very much,
Rick
Bet'cha the dipstick tube has a crack right where it enters the block. Or, if the dipstick enters the pan, check the side of the block where the dipstick would normally go in. In that case, think: RTV.
The one oil hole in the deck and head (that feeds the one drilled rocker shaft pedestal) is pretty far in from the edge of the gasket. I've haven't seen a leak there in 45 years but I never say never!
Rick
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