RacingDreamz

We took our 85 944 out yesterday for a drive. After we pulled off the road to check something and while pulling back on the road(we had to hurry all of a sudden due to car topping the hill), we hit it pretty good. Looking back, there was smoke. Not a lot, it wasnt black, but a definite smell of burnt oil and exhaust emitted from the car. The oil pressure gauge went nuts. It had been on in between 2 and 3 on the gauge, normally, but the whole time going back home it was on between 1 and half and 2. And every now and then, it would bounce to 5, quickly, and back down to 1, then settle between 1 1/2 and 2 1/2 again. Are the rings going bad? Any suggestions?
The car definitely has power, there is no loss of power here. We've had the car for about 3 months now and it has about 170K miles.
Thanks

Swenny

My '87 924S did the same thing. Check the air box for oil. Chances are it's the AOS seals.

RacingDreamz

Thanks. I was afraid I'd need a ring job soon. We did put in a K&N about 2 months ago. I'll check if there is oil tomorrow.

I appreciate it.

Swenny

AOS seals blown.

mel_t_vin

Waste of money.

Did you install it in the factory air box or with a cold air cone filter?

RacingDreamz

Installed in factory air box.

Swenny

Check the air box,MAF,J-boot and clean if contaminated with motor oil. And change the seals in the AOS if bad.I also had low oil pressure readings once with a sticky oil pressure relief valve. After I took it apart and cleaned it no more low readings.

RacingDreamz

Ok, just checked the j boot and the air box. Clean and dry as a bone.

Where's the oil pressure relief valve at?

Swenny

It's in the oil cooler housing on the right side of the engine. Don't take the housing off or you'll need an alignment tool for the OPV reinstall. Do you have a compression tester?

Swenny

You have checked the oil for a milkshake looking oil? Check your coolant level and see if it went down also. Look at your plugs for oil residue also.

RacingDreamz

Just changed the oil, black as can be. No milky looking at all. After oil changed, started it up, oil pressure went to max(5) and stayed there. For this car, when you first start it, it stays on 5, max, for a bit then lowers back down to 2 1/2-3. Going to take it out and see what it does now.

RacingDreamz

Oh, oil, when changed, was a full quart low. Added 6 quarts fresh oil.

Swenny

Go to Clark's and get the info you need to pull and clean the OPRV and do a compression test to see if indeed you do need rings. If it smoked and smelled like oil,somethings up.

RacingDreamz

Thanks

mel_t_vin

Lesser of two evils.

Do you have experience with these type of filters? They require regular cleaning and re-oiling...otherwise their particle trapping capability drops off, rapidly.

What brand/type/viscosity oil did you use?