quattrohacker

Whale oil beef hooked!

Accessory belt tensioner seized up on me, belt fell of, burnt a scar in the timing belt housing, and jammed in the generator. No power at engine, requiring a tow to port. Belt never broke though. I haul out the front end, remove the tensioner, and confirm no damage to timing belt, or any other componebt, except for rubber debris all over the place. Order the parts I figure I need, and I dump the oil so I can attend to a pesky coolant drizzle from the oil cooler at the filter, and notice that a quart of red coolant flushes out of the oil pan before the oil.

Now I am totally freaked out. I cannot see the connection between the accessory belt failure and coolant on the combustion side. Any comments, please?

jaimesonlee

Definitely doesn't sound good. Im no expert but sounds like something internal. I don't think a seal could cause it but hard to say. Maybe an EXPERT will chime in.

Good luck!

quattrohacker

Model info - 2.8Q, '99, MT, 150K miles.

4Driver4

Major issue. Do a leak down test before you do anything.

Pete@ECSTuning

If your oil cooler is leaking coolant it is very plausible that you are getting coolant and oil mixed at your oil cooler. The oil cooler seals are known fault points in the system, you may be getting mixing there. I would replace the seals and do a leak down test just to be sure your head is okay.

A three dollar oil cooler seal may be your issue click here to check pricing for oil cooler seals.

quattrohacker

Pulled some codes from the ECU, and came up empty, except for 18010 - Power supply term 30 low voltage.
Others faults have to do with cylinder misfires, after generator stopped turning. No hi temps, or low pressures.

I hauled off the oil cooler last night, and the seal is def. toast, but I am wondering - Coincidence? I am hoping that after the engine shut down, oil press. reduced to zero, and the coolant just magically migrated to the sump.

Any further thoughts.

THX.

Pete@ECSTuning

I'd do the seal and start from there. If you were mixing that much coolant at your head, I would think you would notice how terrible compression would be.

quattrohacker

I looked at the seal/oil cooler, and the seal is on the oil side. I am afraid I will have to look deeper.