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[mgatlag]

What's the easiest way to flush out the breather? I've heard about using gas while you're doing an oil change but want to have more info before I do something stupid. Thanks!
_________________
Michael
'77 1/2 924 N/A- 5 speed Audi box
'04 Ford Taurus - gone!!
'92 Jeep Cherokee Laredo - gone!!

Porsche... better than tea with Miss McGill
(Slap Shot)

[Rich H]

More importantly, how do you get it out without dismantling everything?
_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

[mgatlag]

I've heard that you just pour gas into the breather itself using a funnel and it comes out the oil drain plug.
_________________
Michael
'77 1/2 924 N/A- 5 speed Audi box
'04 Ford Taurus - gone!!
'92 Jeep Cherokee Laredo - gone!!

Porsche... better than tea with Miss McGill
(Slap Shot)

[Smoothie]

If trying the in-place flush, I'd do it like this -
1) - Warm the engine, park on a slope with the front of the car higher than the rear (or jack up the front and set on jackstands), then drain the oil. Set that used oil aside to allow any particles to settle.
2) - Backflush the breather by pouring gas (, or Gunk Motor Flush, whatever) through the breather line, and collect it in a pan. Do be sure the line is in good condition beforehand - otherwise you'll just be pouring the gas all over the ground. (I found mine in bad shape a couple years ago. Check for cracking, softness, mush, etc., and replace it before proceeding if necessary.)
3) - Re-pour the gas through the breather 2-3 more times. Let it drip drain good.
4) - Pour about a cup of the used oil through the breather to flush out any remaining gas in it.
5) - Pour about 1/3 of the old settled oil back in through the oil filler in the valve cover. Let that drip drain good.
6) - Pour the second 1/3 of the old oil in and let that drip drain. (Steps 4-6 are to flush out as much of the gas as possible.)
Do not pour the remaining used oil back into the engine (obviously it would contain the settled particles that you don't want back in the engine, and especially not on top of the valve train).
_________________
"..it's made in Germany. You know the Germans always make good stuff."


'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

[mgatlag]

right on Smoothie, always great advice! How often do you suggest doing this? And what kind of response should I see/feel from the engine after I do this?
_________________
Michael
'77 1/2 924 N/A- 5 speed Audi box
'04 Ford Taurus - gone!!
'92 Jeep Cherokee Laredo - gone!!

Porsche... better than tea with Miss McGill
(Slap Shot)

[Smoothie]

Couldn't even guess how often it should be done - that would depend on how fast your breather tends to get clogged, and that would depend on your engines' condition (ring blowby, etc.), and other variables like condensation, engine temp., driving frequency, driving style, etc.
Maybe do it once a year or every couple years.
The main concerns if clogged are crankcase pressure would be higher and could cause oil leaks by pushing it past the seals, and you'd probably have more of a build-up of sludge, and accelerated bearing damage due to trapped acids.
_________________
"..it's made in Germany. You know the Germans always make good stuff."


'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

[mgatlag]

as always....cheers!
_________________
Michael
'77 1/2 924 N/A- 5 speed Audi box
'04 Ford Taurus - gone!!
'92 Jeep Cherokee Laredo - gone!!

Porsche... better than tea with Miss McGill
(Slap Shot)

[Min]

From my personal experiance on this one I'd suggest popping the breather right out and removing/replacing the screen thats in it. No amount of fluid backflushing would have cleaned out the two I've done so far.

Min
_________________
Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting.

[mgatlag]

are you sure Min? This thing was a HUGE pita to get in when it was new. I tried freezing, but that didn't do much. Ended up beating it on with a hammer. I rather not go thru that again.
_________________
Michael
'77 1/2 924 N/A- 5 speed Audi box
'04 Ford Taurus - gone!!
'92 Jeep Cherokee Laredo - gone!!

Porsche... better than tea with Miss McGill
(Slap Shot)

[Min]

[Chrenan]

[mgatlag]

well my engine is only 1 year old (rebuilt). I guess I was just trying to be a little proactive. Maybe I should just leave it alone being as I put a brand new one in when swapped engine last year. Probably still good, eh?
_________________
Michael
'77 1/2 924 N/A- 5 speed Audi box
'04 Ford Taurus - gone!!
'92 Jeep Cherokee Laredo - gone!!

Porsche... better than tea with Miss McGill
(Slap Shot)

[Chrenan]

Yes, if it was new going in, or even a cleaned used one, it will still be fine.
_________________
1987 951 - M193 Version for Japan