The Mud Pit > General
'78 Jeep J10
Big Chuck:
Sounds like the 258 straight 6 issue...
JSchwinn:
sounds like a need a new hobby..... lol
JSchwinn:
Alright so got home today and ran the truck at idle for 40 mins with constant oil pressure. I the got in and revved very lightly and watched the pressure drop and then slowly climb back up. I then did a little higher idle and the pressure slowly dropped to 0. I shut the engine off and pulled the dipstick and the oil level showed almost empty. So the oil isn't getting back to the pan quick enough when at higher than idle rpms. What can cause this...
Nite: I have 5-6 quarts of oil in the truck and half a canister or sea foam
Mr Rock:
most likely the motor is full of sludge, take off a valve cover to verify, if the oil galleys are plugged you really need to get it clean before running it much more, there could be critical areas not getting oil! I would drop the oil pan and clean it out as well, you will be able to see how much is on the crank and connecting rods, get it cleaned as best you can as any sludge in there could plug the pick up screen. after that change your oil often a few times.
Big Chuck:
When it's running before the oil pressure goes away, does it smell like it running rich? Did you ever check the timing and possibly over compinstate with carb tuning?
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