90 wt out of ARB compressor? - Defender Source
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Old April 17th, 2011, 10:25 AM
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Jay Goss
'60 Series II Station Wagon
Join Date: Oct 2009
Location: Asheville, NC
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90 wt out of ARB compressor?

I've noticed that I've been getting the strong smell of 90 weight when I'm on a long highway ride. The axles, gearbox and transfer box are all dry (believe it or not!). Yesterday I removed the passenger seat box compartment cover (where the ARB air locker compressor is located) and there was a puddle of 90 weight in there covering the jack, tool roll and the area around the base of the compressor. It appears 90 weight is coming in from the air line from the rear diff. My plan is to wrap the fitting in teflon tape and tighten it- but I'm wondering if it's normal for this to happen? I haven't checked yet- but I'm suspecting I may have a plugged axle breather. Any thoughts? (1994 D90 NAS)
1960 Series II 88" SW
1994 D90 ST Arles Blue (sold)
1963 SIIa SWB (sold)
1971 SIIa SWB (sold)
2000 Disco SII (sold)
1995 RR Classic SWB TWR edition (sold)
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Old April 17th, 2011, 10:50 AM
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Bill Lewis
1995 White SW 339/500
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Location: The Rock, CO
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I had a clogged breather cause the exact same thing on a J**p I used to own.
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Old April 17th, 2011, 10:58 AM
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1997 D90 ST #1444
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Me too... Clean out your breather tubes.

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Old April 17th, 2011, 11:46 AM
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Chris Baldewin
Bastard 90
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Location: Republican Sanctuary of CA
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It could very well be the seals in the locker itself. Oil could be getting in from worn seals and is making it's way back through the air line. I don't believe there should be any oil in the line itself.
“Don't judge a man until you have walked a mile in his shoes”
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Old April 17th, 2011, 12:05 PM
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Jamie Austin
1992 110 Td5 CSW & 1989 MB G-Wagen
Join Date: Oct 2005
Location: Wiltshire, UK
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Mine used to do that.... it was seals in the ARB itself.

for a while i just placed a rag over the top of the compressor to catch the "mist" of oil that sprays out when you disengage, but (after i had the seal done) I foudn out that you can get a small aero adaptor that fits into the top of the air solenoid, you can then fit (one or 2) pipes from the solenoids and run them through a grommet in the bodywork, and let it vent to "outside"

I now have no oily smell at all in the cab.
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