heinrich

There is not a lot of doubt that your engine needs to be opened up. Metal in the oil OF ANY KIND requires you immediately stop driving or starting and repair the engine.

blown 87

I wonder which will come first, the owner opening it up or the engine self opens.

A 928 engine is not a small block Chevy, the Chevy will give lots of warning on a street car most of the time.

I think some folks get lucky with 928's, and if Red Shark 1990 does some real investigating before driving his, he may be one of the lucky ones.

I also think that the translation is getting some things lost here also.
If I remember right, English is not Red Shark 1990's native language.

We all want him not to do any more damage than may have been done all ready.

Mrmerlin

if you dont find metal with the dipstick test then it may be a safe bet that your oil cooler thermostat and springs need to be replaced, these sit just above the oil temperature sensor

Rob Edwards

Luan-

Agreed that you NEED to check a drop of oil on a black background in the sun, AND you need to cut the filter open to look for shiny bits in the pleats of the filter.

As another possible longshot cause to your issue , 2 years ago I managed to misroute the wiring harness that goes across the front of the engine, I managed to route it IN FRONT of the dipstick, it should nestle behind it. Anyway, over time the air pump belt made contact with the harness and abraded thru the insulation and a wire or two.

This came to my attention while I was in the middle of an autocross run and I spun out. I got a low oil pressure warning, and after the run I checked the oil level (ok) and the pressure gauge continued to show normal (2.5 bar at hot idle, 5 bar everywhere else). But the light continued to stay on, no matter what kind of resetting of the digitial dash warning or disconnecting the battery that I did. The warning only went away when Greg pointed out my idiocy with the wiring harness and repaired the cut wires. I am not sure whether the aggressive driving on track (high rpms + harness flopping around) finally cut into the harness, maybe it was coincidental. Scared me pretty good, but since then I've replaced the bearings on 2 + 6 and they were fine.

If there really is metal on the drain plug magnet, then there will likely be metal in the oil filter, and your rod bearings are suspect. Or Stan's point about the T-stat and cooler springs may be at fault.

I don't understand how trashed bearings would occur given the level at which you maintain the car, but maybe the PO wasn't as fastidious, or perhaps he just drove the living hell out of it. Hopefully it's just a wiring or spring issue.

RED SHARK 1990

Hello ROB i was wondering about the past po,but wear and tear 130,000 miles is alot.I will drip the oil from the filter to a black board and see what happened-probably it needs new bearings?i try to contact you several days ago..

Rob Edwards

Hey Luan-

Sorry, my cell phone was AWOL in the pool bag for 4 days...

Do the dipstick and oil filter tests (and perhaps an oil analysis, like Blackstone (http://www.blackstone-labs.com/standard_analysis.html) and see what you see. Hopefully it's not the bearings!