09-07-2017, 06:56 PM
An 8V92 does not have a tradition head gasket. Rather it has individual crush rings for each cylinder to seal between the head and the cylinder and then a O'ring sealing the perimeter of the head. There are no passages carrying coolant between the block and head like we are used to seeing on other engines. The cylinders are removable from the block and are sealed near the top and just above the intake ports to contain the coolant.
These engines typically leak coolant at a cracked head, from a pitted or cracked cylinder, or, I think, from an injector seal. Depending on how each has failed you can get water in the oil. You can also get water in the oil via the oil cooler but that wouldn'T fit the symptom of water in the exhaust.
Since these engines always have positive pressure in the cylinder, unlike 4-stroke engines that have negative pressure on the intake stroke (normally aspirated engines at least) doing the pressure test and leak test just mentioned would be helpful. Having the engine warm will help to open the cracks if any.
These engines typically leak coolant at a cracked head, from a pitted or cracked cylinder, or, I think, from an injector seal. Depending on how each has failed you can get water in the oil. You can also get water in the oil via the oil cooler but that wouldn'T fit the symptom of water in the exhaust.
Since these engines always have positive pressure in the cylinder, unlike 4-stroke engines that have negative pressure on the intake stroke (normally aspirated engines at least) doing the pressure test and leak test just mentioned would be helpful. Having the engine warm will help to open the cracks if any.
Jon Kabbe
1993 coach 337 with Civic towed