diff breathers

husky · Post by **husky** » Wed Jul 12, 2006 5:23 pm

i have a series 61 surf and was wanting to put diff breathers on but wasn"t shure how high to take them or where to take the back one to .

albundy · Post by **albundy** » Wed Jul 12, 2006 5:35 pm

Cut a hole through the floor pan up into the rear, behind all the panel work inside.
Al

MNC · Post by **MNC** » Wed Jul 12, 2006 5:52 pm

Do all diffs have diff breathers? I haven`t looked into it for my FJ40 but supose I should if going through the water.

albundy · Post by **albundy** » Wed Jul 12, 2006 6:05 pm

You need breathers because off the sudden temperature change when you hit water, sucks it in. I used to run cruisers back in OZ and always had water in the diffs even with breathjers. Saw the light and drive a nissan now, dffs, gearbox and tranmission free of water and they call me U-571 :lol:

Al

oldblue · Post by **oldblue** » Wed Jul 12, 2006 6:47 pm

Just a little tip, If you make the breathers higher ,DONT fit the little sprung loaded valves back on to the tubes, if you do you haven't done any improvement. Leave the ends open so the air can move in and out of the diff.

rokhound · Post by **rokhound** » Wed Jul 12, 2006 8:32 pm

If you want to get really carried away, Run all air lines (axles, transfer case's and gearbox) to a common manifold, and air pressurise it to about 4lbs. Most seals are pressuried to 7 -8 lbs so it shouldn't blow oil out them. The extra presseure should be enough to keep the water at bay. Works for me anyway.

H2OLOVA · Post by **H2OLOVA** » Wed Jul 12, 2006 9:05 pm

I've fitted plastic Petrol Filters (repco or supercheap) to the top of my breathers to prevent any crap getting sucked in when the pressure changes.

MNC · Post by **MNC** » Wed Jul 12, 2006 9:41 pm

Some good ideas there fellas. Think I like the simplicity of fitting petrol filters. Nice one :wink:

niblik · Post by **niblik** » Wed Jul 12, 2006 9:45 pm

MNC wrote:Some good ideas there fellas. Think I like the simplicity of fitting petrol filters. Nice one

yeah, but they dont do much when ya drive like his avatar :!:

husky · Post by **husky** » Wed Jul 12, 2006 9:48 pm

thanks for all that, gives me something to think about on the weekend.

MNC · Post by **MNC** » Wed Jul 12, 2006 9:55 pm

niblik wrote:yeah, but they dont do much when ya drive like his avatar

Hahaha, yeah but what will??? Not sure even Russian Submarine would have survived that :lol:

niblik · Post by **niblik** » Wed Jul 12, 2006 10:00 pm

MNC wrote:
niblik wrote:yeah, but they dont do much when ya drive like his avatar

Hahaha, yeah but what will??? Not sure even Russian Submarine would have survived that

they dont.. look at the kursk. sorry , dont mean to offend anyone.. :roll:

albundy · Post by **albundy** » Thu Jul 13, 2006 6:32 am

Hey they don't call me U-571 for nothing now guys :lol:

H2OLOVA · Post by **H2OLOVA** » Thu Jul 13, 2006 9:14 am

Stopped all the gravel and crap getting carried by the water into my diffs though!! :wink:

I've also fitted a breather to my transfer case. Water can get into this from the input shafts, which will suck/blow jut like your diffs when plunged into cold water.

1lurch · Post by **1lurch** » Thu Jul 13, 2006 6:01 pm

theres a real easy way of fitting breathers ,
grab a threaded elbow from the "push fit" air fittings range .
these can be bought threaded on one end and will screw straight into the
diff housing and the air line tubing simply pushes into the other end .
Norgren , TWL , or other truck (real trucks) bits shops or tool shops .

Just hoping to save you time on your back under your wagon , means you have more time to plan the next mod for your surf

cheers AL

husky · Post by **husky** » Thu Jul 13, 2006 9:07 pm

ill have to see if the mechanick at work has some lying around , sounds almost to easy. i like that.