Is my oil tank clean?

[geneulm]

Essers,

Had my oil tank ultrasonic cleaned by an experienced outfit (pacific oil cooler). Had some gunk in it which I think contributed to a spun rod bearing.

Anyway. All sludge gone; however, if I reach my finger thru the oil drain on the bottom I can feel a little scaley rust. My finger comes out w some rust colored dust At first I was flipped. But then I thought there must be a zillion tanks out there in fine running cars that have some rust from condensation rust?

So. Is this clean? Or no?

[304065]

When my tanks come back from POC they are filled with a light oil, but it's not like Cosmoline or anything. The first thing I do is fill them with anticorrosion aviation oil and shake it around to thoroughly coat the inside.

Anyway, they do a great job of cleaning the tank, but they don't remove the rust. So if you think you have rust, then it's time to get a new tank, it's not worth the risk of stroking your motor out.

[Tom F.]

The oil goes straight from the tank to your bearings, no filter. Crazy, but Porsche left it that way till the 993. Curiously, they had a filter before the bearings in the race cars...

[sithot]

Best place for the filter is where the cooler is. Remove the cooler and do a 993 setup. Put the cooler somewhere else.

Tom

[geneulm]

I called Pacific Oil Cooler and they said, "That's not right. Send it back and we will fix it." How about that: a good story of someone standing behind their work.