BMAX4iii leaky diff outdrives

[andrewc]

Hi all

As title, a little diff oil seeping out I think via outdrives.

Having read a little it seems the kit o rings which are black can be replaced with orange ones which are more effective?

There's also a note in the manual about adding the 'supplied' o rings to the outer side of outdrive; it's in the exploded diagram of diff on page 5 of manual here:

http://site.petitrc.com/setup/yokomo/setupbmax4/Bmax4III_Manual.pdf

Can anyone give me a part number for these o-rings please? Got the part numbers for black and orange inner rings, but nothing for outer ones?

[PJC]

I couldn't find any part number either. So I went for these
http://www.ebay.co.uk/itm/Metric-Viton-Rubber-O-Rings-1mm-Cross-Section-2mm-35mm-ID-UK-SUPPLIER-/141455807149?var=440603744176

[Dazzieboy]

As per previous poster I bought some off ebay http://www.ebay.co.uk/itm/321760262574?_trksid=p2060353.m2749.l2649&var=510668394291&ssPageName=STRK%3AMEBIDX%3AIT

There is a maintenance kit but its not really worth the price http://www.wheelspinmodels.co.uk/i/237644/ (http://www.wheelspinmodels.co.uk/i/237644/)

[andrewc]

Thanks Guys;

So is the diameter 4 or 5mm?!

Also the maintenance kit, no paper gasket, just a massive o ring?!

[PJC]

1mm thickness of the rubber and a 4mm inner diameter of the ring so outer diameter is 6mm (1mm+4mm+1mm). I think. I can measure it for you later on this evening.

[Dazzieboy]

I measured the out drive with a vernier at 5mm then measured the thickness of the o-ring in the maintenance kit at 1mm hence I bought the ones in the link. They fitted fine and I've ran the car with no leaks. Don't buy the maintenance kit it's really not worth it :thumbsup: