Outer Limits 4x4 Board

what should i use between the diff centre and housing (when changing diff centres) to prevent leaking? Is there a special gasket or something else i can use?

Cheers

ultra blue is your friend

burons, repco, all those sorta stores. ultra blue is a good mate of mine

yep , I buy the blue siliconr thats fis the caulking gun, Lasts months before it goes off.

cheers

Cheers guys

silicone gutter sealant - works every time and cost less than the Auto stuff!

Reddo wrote:silicone gutter sealant - works every time and cost less than the Auto stuff!

Dont use roofing silicone. It will leak like a seive after a year or so of use.

Use proper RTV sealant like Ultra Blue, Stag etc. I would use a gasket too, they are only $10 from repco.

Gribble wrote:

Reddo wrote:silicone gutter sealant - works every time and cost less than the Auto stuff!

Dont use roofing silicone. It will leak like a seive after a year or so of use.

Use proper RTV sealant like Ultra Blue, Stag etc. I would use a gasket too, they are only $10 from repco.

aree, I subsribe to the if it sticks like s*** and gets you high while aplying it it it the good stuff any RTV silicone will do the job, you dont need to ge the fancy high temp racing stuff that glows in the dark and changes color when the oil needs changing either

Tiny wrote:

Gribble wrote:

Reddo wrote:silicone gutter sealant - works every time and cost less than the Auto stuff!

Dont use roofing silicone. It will leak like a seive after a year or so of use.

Use proper RTV sealant like Ultra Blue, Stag etc. I would use a gasket too, they are only $10 from repco.

aree, I subsribe to the if it sticks like s*** and gets you high while aplying it it it the good stuff any RTV silicone will do the job, you dont need to ge the fancy high temp racing stuff that glows in the dark and changes color when the oil needs changing either

And smells like Burger Rings.

And yeh your right, you dont need high temp stuff but the majority of RTV you buy these days has the additive anyway.

re guuter sealant....

not so, well not round here at least. We've never had one leak yet, and have used silcone gutter sealant on all the farm machinery for the past 15 years and more, and it has held tight against all challenges, including hot hydraulic oils under immense pressure, and without a gasket too! ........but ......agree if you're unsure use the patent auto stuff which should be OK provided the surfaces are cleaned first eg, with degreaser (spirits or the like).

Reddo wrote:re guuter sealant....

not so, well not round here at least. We've never had one leak yet, and have used silcone gutter sealant on all the farm machinery for the past 15 years and more, and it has held tight against all challenges, including hot hydraulic oils under immense pressure, and without a gasket too! ........but ......agree if you're unsure use the patent auto stuff which should be OK provided the surfaces are cleaned first eg, with degreaser (spirits or the like).

ditto here as well.. but havent tested them long enough.. only on the buggies .. and they often get their parts removed if broken or somethign needs replacing

silicone is also great for repairing holes in mufflers. Mine went through rego like this.

Gribble wrote:

Reddo wrote:silicone gutter sealant - works every time and cost less than the Auto stuff!

Dont use roofing silicone. It will leak like a seive after a year or so of use.

Use proper RTV sealant like Ultra Blue, Stag etc. I would use a gasket too, they are only $10 from repco.

Yeah I think i will get a gasket as well.


Cheers

a toyota 22r sump gasket is sealant only. i went to toyota to buy a gasket and they said its part number is sealant. I would save ya money on the gasket. Just use the silicone sparingly.

If you use a gasket you should use the correct gasket sealant other wise your just holding a gasket to a metal surface via silicone anyway.

cheers

forget the gasket! Use the sealant only, it is not needed in 99% of cases and usually builds in additional failure/leakage opportunity. My view anyway

Use a gasket.

If the diff leaks its probably because you used sellys all clear (roofing sillicone) instead of the proper stuff. Or your just galloptic and dont know what the hell you are doing.

Use a Gasket, nice 30thou hard shit that doesn't crush to much, you misalign the axles in the side gears not using a gasket, i know its fark all but some of us like to do a good job

cloughy wrote:Use a Gasket, nice 30thou hard shit that doesn't crush to much, you misalign the axles in the side gears not using a gasket, i know its fark all but some of us like to do a good job

Thats a fair point. Maybe we should be putting in our axles before tighteninging up the diff centre. would definatly help locate the axles/centre properly

cheers

Hum.....interesting comments re gaskets and sealant. Still seems ironic that lots of machinery don't use gaskets anymore. Wonder why????

Check any Toyota 'parts' manual. Even the 60 Series rusting out the back of the shed uses silicon based sealant in stead of gaskets in many many places.

As for the alignment comment.......well......I'd be very surprised if it's that critical given the normal flex that occurs across differential housings and components. Time will tell but 10 years so far and no problems to report here....

PS no need to get personal............we have a modified Disco here that now has very few gaskets anymore, and it don't leak one drop of oil from anywhere!!! I also noted that the official Rover dealer in Hobart used gasket goo when the transfer case was warranty rebuilt some time ago an it don't leak either.


OK nuff said......time to move on....each to their own way

Reddo wrote:

OK nuff said......time to move on....each to their own way

Can't get the last word in but your dead right some manufacturers recomend sealant, so use sealant they've been machined to suit the 3thou film the sealant uses

And about the misalign probs, yea they're fark all- like i said in a previous post- but none the less everything is machined to a tolerance, now i'm talking DIFF centres of the banjo type, i DON'T use gaskets on >swivel housings>>stubs>>short axles.... as these don't create misalignment problem's

I guess its like building a diff centre some people blue it others just check the backlash....transfer cases and gearbags, some people check the tolerances and preloads others just put them together and the worst part of it is!


Some people blueprint everything and it farks up and others whack it together and lasts forever

Use a gasket and RTV.