sakadachi

iTrader: (1)

If you have the inner and outer diameters I can compare it with my Kyosho and TOP o-rings. Maybe get lucky..?

filippimini

Thanks mate, I'd appreciate it anyone could look for me.

The o-ring is 4mm ID, 7mm ED.
3racing call it an M4 x 1.5mm

Cheers
Ryan

sakadachi

iTrader: (1)

I checked but does not match..

Kyosho: OD 8.5mm/ID 5mm / t2mm
TOP: OD 8mm/ID 5mm / t1.5mm

monkeyracing

iTrader: (10)

Sounds like a pretty standard size. Hardware, automotive or industrial supply shops should all carry them. The latter two will likely provide a choice of materials, as well.

sakadachi

iTrader: (1)

I remembered after getting to my work, that I had one more o-ring size I can check which is the TOP's FWD m-chassis gear diff. That one uses a black o-ring, but the problem is it leaks out of the drive cups. TOP is aware of it, they haven't gotten back on an improved o-ring based on the clear material.

Yes, before anyone comments, I've tried GreenSlime.

cheapskate.brok

iTrader: (10)

Have you tried shims to compress the oring? I never had a Top but that's what I did to my 419 diffs

sakadachi

iTrader: (1)

Humm...I've not tried that, thanks. I will give it a shot next time!

eR1c

iTrader: (2)

"Have you tried shims to compress the oring? I never had a Top but that's what I did to my 419 diffs"

+1 that!
Use greenslime and shims! I am doing this in one of my TC's w/ very good success. Leaking diff's *used* to drive me crazy!

filippimini

So I think I have found a source of 0-rings locally at a hardware store and they are only $0.07ea. Worth a try at that price. They look to be made of the same black material as the 3racing ones.

monkeyracing

iTrader: (10)

Interesting. Tamiya releasing a drift version of the MF-01X and are using a method of locking the rear diff that was improvised by end users. Reminds me of the rear suspension extension links they released for the CC01, that were already a common mod.

http://tamiyablog.com

howardcano

iTrader: (37)

That's a clever way to lock the diff, but I worry that the imbalance will be problematic.

sosidge

Not an official Tamiya release as far as I can tell. Just an enthusiast build. Tamiyablog is not an official site, if you weren't already aware.

sakadachi

iTrader: (1)

Cool, thanks for confirming, eR1c. Will give it a shot later tonight.

You should make a monkeyracing spool. We'll all buy the idea.

OSherman

iTrader: (3)

what sosidge said...

monkeyracing

iTrader: (10)

I knew that bit, but I thought they were a dedicated bunch of Tamya only devotees.

I know I was a damned good salesman, but selling someone else's idea and cheap shims without even trying is a hell of a feat. It's even easier than selling a $24K carbon ceramic brake kit to a guy with a $9K Boxster. (Ended up talking him out of it.)