Subject: OPTIONS for breather filtering/waterproofing gearbox?
bajachris88
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posted on October 6th, 2009 at 05:44 PM
OPTIONS for breather filtering/waterproofing gearbox?
Whats the best way i can go about venting the breather of my 1600 3 rib kombi gearbox on the baja that will keep it water crossing and dust proof on
the dirt?
Is there a good way i can do it without pulling the nose cone apart? off the shelf componentry?
small brass tubes or sumfin or some size vented at a filter element mounted up high?
cheers fellas!
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears.
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta!
bajachris88
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posted on October 7th, 2009 at 08:33 AM
bumpity...
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears.
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta!
Bizarre
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posted on October 7th, 2009 at 08:38 AM
OK - dumb question time.
Why do you vent a gear box??
What piston action is causing pressure??
Futue te ipsum!!!
bajachris88
A.k.a.: Chris Leete
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posted on October 7th, 2009 at 08:45 AM
ask the original vw engineers who installed it in my nose cone cover :P
i assume its to vent pressure where the air inside increases with temperature and expands when it warms up... putting less stress on seals
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears.
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta!
matberry
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posted on October 7th, 2009 at 08:56 AM
Venting is necessary because as it heats and cools, the air inside has to go somewhere and that is the problem with water crossings, it cools the
trans quickly so it sucks in air as it cools, but if underwater still, in goes the water instead of air. You answered your own question though, a
small tube (bit of 5mm vw steel fuel line works) can be glued to the trans nose cone into the og breather hole, but it does need to be drilled out, so
therefore remove the nose cone, no big deal, just have a new gasket on hand. I would prefer to use a small tapped threaded fitting, and then some fuel
hose run high with a fuel filter on the end. One important thing is as usual with breathers, is not to have a loop that will catch and hold fluid as
any oil or such in there stops the venting action.
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Bizarre
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posted on October 7th, 2009 at 08:59 AM
WOW...... this old dog learned sumfin today
Now i can go home
Futue te ipsum!!!
VWCOOL
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posted on October 7th, 2009 at 09:32 AM
yeah usual 4WD practice is to pipe a hose to a high point on the chassis and install a U-shaped peice of metal pipe at the end, facing down, so water
(in a creek crossing gone wrong!) can't run down the pipe and enter the gearbox
Pay your debts, CxxT
vwbugnut58
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