Leaking diffs?

[z3usX5]

Any got tips on fixing this, i got leaky diffs and want to cure this...

How about this:
http://www.carolinasrc.com/Webstore/ProdImages/large/ASC1105.jpg

[scoobie]

That will help, but use new orings and diff gaskets...Mugen right? It might be time for new cups and outdrives too?

A little tip on diff assembly is to use a power drill with a clutch and use it like a torque wrench.

[AZRCaddict]

Probably get some new diff gaskets. Make sure that the set screw has some grease on it also.

[RC_KAOS]

lol, i like the description - green slime

Cheers

[J_Bone]

I would bet the Green Slime won't work.
The Factory AE guys told me not to use it at all, for shocks that is.

[PLUMBUM]

The Only Way I Know To Stop Diffs From Leaking Is To Rebuild Them Frequently And Use New Seals Each Time. Proper Build Is Important Too.

[TWeatherholt]

Also be sure to grease the outdrives every time you take your diffs apart. I use marine bearing grease and put it around the whole shaft before putting it into the diff case.

[NeoNot]

A real thin layer of grease between the diff housing and outdrive cap will keep a diff from leaking for a short time. This is a quick fix for a day or two. After that time the oil will penetrate the grease and start leaking again.

[porkchop]

sand the case down helps to with 800 grit paper in figer 8 motion:blbl:

[rjmods.net]

or rtv gasket s.works good

[scoobie]

I found this while I was digging for setups...A must read for all Mooogen drivers.

Originally posted by Jeff Schwartz @ Sgrid

Ok, so like most other Mugen drivers, I've always found that I need to
rebuild the diffs often, or at the very least, refill them, simply
because they leak. At the Nats, Bob Tillman and Leo Vik gave me a few
tips and at last, I have managed to build diffs that don't leak and use
the stock o-rings. I don't sand the diff cups either. The key is using
grease on EVERYTHING and making sure it's consistent. Per Mr. Tillman's
recommendation, I'm using Mobile 1 Synthetic Automotive grease. It's
super cheap and I'm sure a tub will last quite a long time.

1) Squirt grease into the outdrive hole in the diff cup or conical gear
and spread it around with something like one of your hex drivers, so
that the inside has an even coat of grease
2) Coat the outdrive shaft with a good layer of grease, paying special
attention to getting good coverage over the little groove. Also, fill
the pin hole on the shaft as well. Push the outdrive into place, then
yank it back out and make sure that the little groove is completely and
evenly full of grease.
3) Put another thin layer of grease on the outdrive and put it into the
diff cup or conical gear.
4) Coat the S5 o-ring with a good layer and grease and put it over the
outdrive shaft. Push it into the o-ring groove with the end of your hex
driver, working around the edges until it seats completely.
5) Coat the thin shim with an even amount of grease, then put it over
the outdrive shaft.
6) Coat the sun gear pin with grease and put it into the outdrive shaft.
7) Coat the bottom of the sun gear and the pin groove/hole with grease
and put it over the outdrive shaft and pin.
8) Repeat for the conical side
9) Fill your diff according to your setup, then use two gaskets to seal
up the diff. Also, use screws that are at least 2 mm longer than the
stockers, so that you have plenty of grip to really crank those screws down.
10) After your first day of running, take the diffs out, make sure
they're still full and then re-torque the diff screws (the gaskets will
have compressed a little and the screws need tightening up).

[z3usX5]

Very helpful! Thanks scoobie.