differential vent
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Mountain Pass
Joined: Oct 2015
Posts: 248
Likes: 45
From: Iowa
differential vent
How do i check if vent is working? Was pretty grimed over. I clean it up and now the dome top spins. I just replaced pinion seal, i wonder if the vent caused it to leak. Maybe I can blow air in fill hole and see if air comes out, maybe put soap over dome.
Hotshot
Joined: Oct 2009
Posts: 16,135
Likes: 4,735
From: Burbank, WA
IIRC, the vent unscrews from the housing like any brass fitting. You should be able to remove it and clean it and make sure it breathes properly. Later vents were just a fitting with a rubber hose attached that just terminated into open air in the frame rail or crossmember.
Cargo Master
Joined: Nov 2014
Posts: 2,442
Likes: 256
The vent on the Dana 41 and early 44’s is a press fit into the housing. On the inside, there is a tang on the casting that keeps oil splash inside. You might be able to sneak a really small bottle brush up in that cavity to dislodged any sludge that is blocking it. Or a good jet of brake cleaner. That will require a thorough cleaning of the chunk to rid any grit that could get into the bearings.
JB
JB
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