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-   -   Bubbles in tranny oil (http://www.jeepforum.com/forum/f8/bubbles-tranny-oil-1752218/)

John Strenk 11-03-2013 05:55 AM

Bubbles in tranny oil
 
Anyone know what causes this?

It's never been in deep water

the tranny is stone cold, just some 'friend' got it stuck in 4th so i removed the top to fix it and found this


http://civilianjeep.info/Strenk/T-176/Bubblesinoil.jpg

Matt1981CJ7 11-03-2013 06:07 AM

The pic isn't posting for me, John.

Matt

86cj74.2L 11-03-2013 06:33 AM

Just condensation?

Grammys CJ would on occasion build up water in the rear axil. Only way to explain it since all she does is drive to work. And 8 miles isn't enough to get things up to temp.

LumpyGrits 11-03-2013 08:32 AM

X2 on condensation of cold oil.
You get the same thing inside the engine etc also.
LG

JeepHammer 11-03-2013 09:12 AM

Moisture or other contamination.

Overheating by over compression of the oil can cause it also...

bruteboy 11-03-2013 05:47 PM

incorrect type of oil or an additive has been added

LumpyGrits 11-03-2013 06:34 PM

Quote:

Originally Posted by bruteboy (Post 17405522)
incorrect type of oil or an additive has been added

Your source for this info?
LG

MoneypitCJ5 11-03-2013 07:23 PM

Are they JUST bubbles? It looks like aerated oil to me. I would expect condensation to cause white film on the sides of the case, like the junk that gets on oil caps sometimes.

John Strenk 11-04-2013 03:11 AM

Yeah, they are bubbles. No scum like I'm use to see in some old engines.
And I use the jeep mainly in the winter to plow snow so condensation could be it.

Feels rather thin to be the 120 wt I put in there.
Don't ask, I need to mark my containers better..

Oh by the way, don't drive your jeep with the cover off the tranny...

I drove it just 20 ft to work in the garage only to have a huge oil spill over the exhaust pipe....
Were is that dope slap icon....

86cj74.2L 11-04-2013 03:32 AM

When Grammys rear axil built up enough moisture to vent and freeze out the breather vent. Which would build pressure and then burp more oil. When I dropped the cover to drain it out it was just a coffee with a lot of cream color. No foamy cake like engine oil.

Those 8 mile trips since 1986 are probably what kept the trans happy. It's still original with 160,000 on the clock now. A999 (Grammy don't do stick)


The time now is 03:11 PM.

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