Coolent in 8010 engine oil pan

Checked fluid levels the other day n found low coolent and hi engine oil level, drained oil and left plug out for 4 days, anti-freeze was dripping (a drop every 5-6 seconds, put rad pressure tester on and pumped up to 13 psi, ya it dripped faster, removed oil lines from engine oil cooler and valve cover and left rad tester on over nite with no sign of leakage in those two areas - coolent still dripping from drain plug. My next move is to remove drive shaft and oil pan, my question is how or can one check the copper injector sleeve for leaking be fore I go any further? Thanks Dave

Sleeve o-ring trouble. You'll see it with the pan off. Copper tube in the head can leak, but they would either leak externally or into the combustion chamber. The amount of coolant leaking into the combustion chamber would have to be enough to leak down past the rings to get into the oil. Not very likely. If it had antifreeze in a cylinder, it might hydro lock when trying to start,blow coolant out the exhaust, smoke white when running, or even force the coolant out the radiator overflow.

Sorry guys that I didn't get back to you's sooner but its the piston sleeve o-rings leaking coolent, I thought it mite have been the injector sleeves this time as I had replaced the sleeves, o-rings, pistons & bearings, do to eletrolysis 24 years ago 4500 hrs and only put 4000 hrs since, I used a Agco o-haul kit at the time and faithfully change anti-freeze every two-three years. Can still see hatch marks on the sleeves, bearings look pretty nice as well but will replace them as well. Thanks for the advice-Dave

Ya Doc it got green anti-freeze 24 years ago and switch to the diesel purple stuff 6 years ago

My money says it's the counterbores.....

Wellll...I think you better thank your lucky stars that the bores are good! That saves mountains of work!