Cause of a "wet" Aircleaner? - Page 2 - PeachParts Mercedes-Benz Forum

vstech · #16 05-21-2011, 09:43 AM

RTV ULTRA black will hold until you chip it off...

otto huber · #17 05-21-2011, 11:34 AM

Quote:

Originally Posted by vstech

RTV ULTRA black will hold until you chip it off...

The Ultra Black that I cleaned off was kind of soft and rubbery.

vstech · #18 05-21-2011, 12:17 PM

did it leak? of course it will be rubbery, but if applied to clean surface, and allowed to cure before pressurized and or exposed to oil, it'll stay indefinitely.

warmblood58 · #19 05-21-2011, 01:19 PM

Quote:

Originally Posted by whunter

The oil accumulator return tube has a check valve in the upper oil pan.

It could be plugged (fail to drain) or stuck open by sludge = blow back from the crankcase.

oil in turbo intake - rebuild?

oil in turbo intake - rebuild?

oil in turbo intake - rebuild?

.

Oil definitely drains but if stuck open that would suggest that oil is moving up and pooling in the seperator, Yes? The seperator is clean and does not show evidence of oil dripping into it from above or moving up and into it from below -weird!

warmblood58 · #20 05-21-2011, 01:21 PM

Quote:

Originally Posted by otto huber

I had the same problem when I purchased my '81 300SD about 8 months ago. I upgraded from the round plastic tube that goes from the valve cover to the oil separator to the flat one that has baffles in it. I also sealed the separator with RTV black. The results were good, and even though the RTV black wasn't able to hold for more than 6 months, it was easy to clean off and do the job again.

I did reseal mine and I have the updated flat baffled hose as well -

warmblood58 · #21 05-22-2011, 04:02 PM

Quote:

Originally Posted by warmblood58

Does anyone know why my OM617 82 300 SD would have oil pooling in the bottom of the aircleaner? Is oil vapor not condensing properly and draining back into engine? Engine has over 360,000 miles on it, last compression test yielded high figures as I recall (6 months ago) Just did valve stem seals and now am considering turbo rebuild just because - any thoughts?

Aha! Can't believe I missed this before. I noticed that upon removing my filter that some of the oil was not making it into the separator nipple that pokes out through the bushing on the top of the air cleaner housing lid (I have the updated hose) Much of it was spilling down the nipple, flowing across the top of the separator and then down into the bottom of the air cleaner housing due to a loose fit on hose to nipple. I put a viton oil ring on nipple which creates a more positive connection between nipple connection and hose. I will post pics and check in a hundred miles or so to see what I find -