Kyosho Plastic Spurs

[jacobsjo87]

I have been using Kyosho plastic spurs on my 8ight-T and I cannot get them to stop leaking through the seal. I was wondering if anyone else has this issue and if it could be solved by going back to a steel spur? Or do diffs just always leak?

[BrianG]

Do you have a gasket between the diff and spur?

[bdebde]

Leaking from the gasket or o-ring? The losi cups are a bit of a tight fit, and may not be pulling together all the way. I chuck the cup in a drill and run it on some sandpaper to reduce the O.D. slightly.

[jacobsjo87]

Yes, I am running a gasket. I have rebuilt the diff numerous times but it always leaks. I even got a new HD diff cup but that didnt help either. It is leaking from the big gasket. Would putting some green slime on the gasket help?

[jacobsjo87]

Originally Posted by bdebde

Leaking from the gasket or o-ring? The losi cups are a bit of a tight fit, and may not be pulling together all the way. I chuck the cup in a drill and run it on some sandpaper to reduce the O.D. slightly.

I never thought of that. I guess that could be whats happening.

[rchippie]

what the pro's do to insure there diff's dont leak is as follows . They take some 150 or finner grit sand paper . Lay it on a flat surface. Then they take the diff cup & with the gear side or ( open side ) down . Then they use figure 8 motions to level out the surface of the diff cup & get rid of any high spots. Then some times they also use 2 seals .

[jacobsjo87]

Thank you all for your opinions. I'll give it another try after some modifications and see what happens.

[bdebde]

If all else fails, you could try the Losi plastic spur. It has a metal center section.