924Board.org

MunkPuppy · Posted: Tue Sep 16, 2003 9:02 am Post subject: Smoking problem solved, but...

Well I figured out why my car is smoking so much; it should have occurred to me sooner, but frustration blinded me until I read another post on the board.
When you plug the breather hose, the engine will smoke TONS (sound familiar?). So on a whim I removed my oil filling cap, and sure enough, a bunch of pressure was released, and the car instantly stopped smoking. Fine and dandy, but I'm not going to drive everywhere spewing oil onto my valve covers and such.
I've removed a bunch of things to get at the breather (WUR, what I believe is the vaccuum limiter, and hot start valve). Lizard told me that it should just pop off with a screwdriver, but for the life of me I can't get it off. The only other thing I can think of is that the breather valve is threaded into the block, but I have not been able to find any way to get it off. Channel-lock pliers have not been of any use, since they just slip around the breather tube flange.
Anyone have experience in removing the breather on an 80 Turbo?
Help!!!
_________________
'80 931 FOR SALE

"It's a shame that stupidity isn't painful"
-Anton Szandor LaVey

Lizard · Posted: Tue Sep 16, 2003 9:10 am Post subject:

hey munk, I had a brain fart and found it in the tech section,

http://www.924.org/techsection/technical.htm

Engine Breather
The engine breather on the 924 is located under the rear of the intake manifold, at the rear of the left side of the block (from the driver's perspective), and can be identified by one or two hoses going into a spherical insert in the block. The exact configuration of hoses may vary depending on emissions equipment fitted. When the breather filter becomes clogged, excessive build-up of crankcase pressure can force oil out of the oil filler cap and/or oil dipstick tube.

The insert, which is the breather and it's filter itself, cannot be removed without completely disassembling the block, but it can be cleaned during an oil change. Simply use a long necked funnel, such as used for filling an automatic transmission, to pour gasoline into it (and thus out the open drain plug into a catch pan). This will effectively back-flush out oil residue. Then proceed with the oil change, replacing the drain plug, and refilling with oil.
_________________
3 928s,

MunkPuppy · Posted: Tue Sep 16, 2003 9:18 am Post subject:

Yeah, I thought you had been thinking of an n/a. Okay well that makes things easier then, since I want to flush out all of the sythetic 5w30 and replace it with synthetic 5w50.
I had already thought of dumping gas in there, but didn't want to have gas in my oil. However, I think I'm going to use carb cleaner instead. Gasoline doesn't dissolve carbon, but carb cleaner does.

Thanks Lizard. I should read that tech section more often

_________________
'80 931 FOR SALE

"It's a shame that stupidity isn't painful"
-Anton Szandor LaVey

Lizard · Posted: Tue Sep 16, 2003 9:21 am Post subject:

yah actually the NA is the same way, I am not sure why I had thought it had just popped out, oh well now we have corrected that
_________________
3 928s,

MunkPuppy · Posted: Tue Sep 16, 2003 9:21 am Post subject:

I'll bet you were thinking of the Volvo! That's how its breathers are set up, sort of.
_________________
'80 931 FOR SALE

"It's a shame that stupidity isn't painful"
-Anton Szandor LaVey

jl924t · Joined: 03 Nov 2002 Posts: 214 Location: Surrey, BC Canada

Are you talking about the hose that comes off the block (drivers side by #4 cyl) to the oil seperator and from there to the air fiter housing. If you remove your intake manifold it is easy to gain access. I just did mine and I replaced the hoses and cleaned out the oil seperator with varsol, then water and blew it dry. The oil seperator also has a line that returns the oil to the pan, just above the drain plug. That's how it is on my 80 924 turbo.

Lizard · Posted: Tue Sep 16, 2003 10:58 am Post subject: