RedBullFiXX

iTrader: (34)

From Yokomo

lk2849

iTrader: (1)

Thanks I will try that

CraigM

iTrader: (34)

My diffs feel terrible with the p5 orings - really grabby. I'm hoping the new yoke ones are a better fit, till then I'm just letting them leak

Racing4Evo

iTrader: (2)

Umm must be your weather because they feel fine to me and everyone else around here.

I also put the updated diff rebuild kit in and they are the exact same P5 orings from Kyosho...

Bar

iTrader: (1)

I just used the standard o-rings on the diff, and have so far had no leakage issues. I did spend quite a bit of time sanding the back of the gears down as the diff was very tight, even for a new diff, I also ran an arm reamer through the crown gears as these were very tight on the shaft

jsr555

iTrader: (18)

I'm currently building my BD7 and read most of the tips on here, but the gear diff. The instructions appear to say fill it to about 80%. I've only ever built xray gear duffs before and that seems a lot of oil. Are people putting that much oil in the Yokomo diffs or going just below the top of the gears.

It is very tight... Feels more than 2000. I'm thinking it has too much oil in it or I should had sanded the back of the gears a little...

Any advice?

evochick

iTrader: (5)

If you can find Craig M's diff build on facebook, its a big help,

They work best when you sand the gears so there is non on the mould dimples on the back of the gears, 2 gaskets also help for some reason,

jsr555

iTrader: (18)

Thanks. Dimples gone. I'll put it back together and see how it goes this time.

orzel24

iTrader: (2)

If anyone want winning RS setup there is a link:
Any questions PM or fb

frozenpod

iTrader: (1)

Has anyone else had diff leakage issues that were not fixed by using P5 orings?

As after 16/17 runs one of the P5 orings started to leak.

I used green slime liberally applied possibly why the original orings and the P5 orings didn’t leak immediately.

RedBullFiXX

iTrader: (34)

I've yet to have any diff leakage with original BD7 diffs, standard o-rings, or P5

Jorge T

iTrader: (14)

I have 3 yokomo diffs all with OEM seals and none leak.
I only fill the diff to the middle of the cross pins. Think of these gear diffs as little gear pumps. If there is too much oil in them the pressure will make them leak out the seals.

RC MARKET

iTrader: (12)

YOKOMO was update gear diff O-Ring is Red color .
1st lot was sold out,
second lot coming friday arrive.

frozenpod

iTrader: (1)

Either your lucky or doing something different perhaps you might want to share.

RedBullFiXX

iTrader: (34)

As far as leaking from the diff output seals, I don't think I've done anything special, built per the instructions mostly

Checking axial play, and sanding oversize gears if necessary

World Champion, Jilles Groskamp has a pro-tip video here, you may find it useful

+ YouTube Video