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Ughhh, foaming gear oil dripping at idle!?!?
Posted: Wed Nov 24, 2010 10:08 pm
by audiocontr
I was warming up my pinz today and noticed foaming oil falling out onto the ground. figured it was coming from the fuel pump until i smelled it. Its gear oil. How would gear oil pour out (lots) at idle? It was without a doubt white with foam meaning air?
any help is appreciated and needed QUICK! I have some help with the holidays.
Posted: Thu Nov 25, 2010 8:48 am
by undysworld
Hard to say, from your description.
Generally, I associate white foam in oil with water. It gets frothed up, and generally it's a white - light tan color.
Gear oil's not in the engine. Normally. The places where it is are usually not involved in just idling the engine.
Where exactly is this stuff emanating from?
Posted: Thu Nov 25, 2010 8:58 am
by pinzinator
Winter is here, and you have moisture in the crankcase. Go get the engine hot, even if you have to block off part of the cooling intake at the grill (hot does not mean overheat). Then change the oil, that should get a lot of the gunk out. Check the vacuum and breather lines for blockage, replace or blow them out as required. Every Pinz owner should check breather lines annually for contamination.
foaming gearoil
Posted: Thu Nov 25, 2010 11:00 am
by krick3tt
Hard to fathom the 'At idle' thing and gear oil in the same context.
When I had a Mog and I went through some very deep water I had foaming gear oil and changed it...after that I tried to stay out of deep water. Breather tubes suck it in. I extended the tubes with hoses up to cab height, no more worries. Got to keep those tubes free of debris.
Havent taken the pinz through deep water... yet.
You might have water in your crankcase. (condensation)
I think that this time of year might bring lots of things to the forefront. If the pinz doesn't get to operating temps the froth is evident in the oil filler cap and I bet if you took off the valve covers for adjustment you would see that same foam in them. Especially the third cylinder. That is where I found mine. I especially noticed this when I lived in the PNW, always damp and a bit cool. Just running around town did not get it up to temp.
Good luck
Posted: Thu Nov 25, 2010 12:14 pm
by David Dunn
Don't believe them ! ... your truck has rabies
Posted: Thu Nov 25, 2010 2:31 pm
by edzz
David Dunn wrote:Don't believe them ! ... your truck has rabies
Dave now I’m very scared. That was my first thought.
Ed
Posted: Thu Nov 25, 2010 2:36 pm
by totaljoint
Were not these things engineered and built in the mini ice age 70's by exacting Austrians (high mountains, lots of snow) for the Swiss army (very high mountains, even more snow)? And we blame the rigs for not running hot enough to cook off the condensation in the oil --in the height of global warming?
I agree with David, it's Pinz rabies all right.
Posted: Thu Nov 25, 2010 6:33 pm
by audiocontr
Ha, rabies. Figured it out.
Looks like the shop i paid to install the transmission did not follow my instuctions and filled the transmission to the brim. The foaming gear oil was coming out of the top vent. I opened the top hole and level hole and a LOT poured out, half a quart easy.
Lets say they did follow directions. Is there anyways a transmission could suck in THAT much fluid?
Posted: Fri Nov 26, 2010 7:09 am
by undysworld
Is there anyways a transmission could suck in THAT much fluid?
There's no place for a transmission to "suck" oil from. It's bolted on to the back of the engine, and it connects to the transfer case via a propellor shaft. It's simply not connected to any other gear lube-containing cases.
Is it
possible the shop was unaware of the check plug, and thus filled it til it ran out the top fill plug?

Oh well, probably better too much oil than not enough...
Posted: Tue Nov 30, 2010 7:30 am
by Erik712m
If it's foaming. Switch oil high foam oils will ruin the seals. Builds up to much pressure when filled correctly and appears full when really not.