MTA4 spur gear problem

[Ouchie]

Hi guys ! Okay my thunder tiger mta4 s28 thought it would eat its spur gear plus melt the friction pegs too !

I've gone over the hole of the truck and every think seems fine apart from what I've said !

The manual says to do the nut up for the spur gear as tight as possible an then to 1/4 turn back !

Now I guess that's say 12 o'clock back to 9 o'clock but is there any way of getting the spur gear to lock though the gear box so I can get it dead on or is it a case of just try to hold onto the gear an do your best ?

Cheers guys !

 

[Alexander_0_1]

I go with the hold the transmission in hand binding the spur with any available fingers, yes your own fingers, then just back the nut off as much as the manual suggests.

 

[SchrodeMode]

The spring may have lost some stiffness over time, I'd just run it a little tighter or get a replacement spring. Tighten it down and loosen it just enough to make it where you have to really "make" it slip. I'd also scuff the slipper plates up a little before you install them, this gives it a little more "bite".

 

[Nitro4910]

Definitely scuff the steel slipper plates, also use all 12 holes in the spur & fill them up with friction pegs, also keep extra nylock nuts & springs on hand.

Melting the slipper's friction pegs is a sure sign of excessive slippage.

At the first sign of more slippage then you want and/or the nylock nut backing off I replace the nut.

 

[Ouchie]

Definitely scuff the steel slipper plates, also use all 12 holes in the spur & fill them up with friction pegs, also keep extra nylock nuts & springs on hand.

Melting the slipper's friction pegs is a sure sign of excessive slippage.

At the first sign of more slippage then you want and/or the nylock nut backing off I replace the nut.

With the friction pegs melting , could the nut of been to tight to cause them to melt ?

 

[Snook Man]

With the friction pegs melting , could the nut of been to tight to cause them to melt ?

No....

 

[Ouchie]

No....

The truck it's self has only had 3 litres of fuel ran though it , is there a chance that it could just be how much life the pegs have in them ?

 

[Snook Man]

The truck it's self has only had 3 litres of fuel ran though it , is there a chance that it could just be how much life the pegs have in them ?

When the slipper is adjusted properly, the pegs will normally last for many gallons. The adjustment nut probably loosend up, when it does the pegs do not last long.

 

[sv250]

Friction pegs are a piss poor design. Old Tmaxx and MGT design. I have an EK4. No tranny so I upgraded the slipper to a true center diff out of Losi 8t.