You should have a very, very little play front to back in the spur gear. If it seems excessive meaning you can physically see it moving front to back then add shims. On page seven of the instruction book, step 7 shows the large e-clip placed directly over the gear adaptor. put one of the 3911 shims from step 8 on top of the gear adaptor. Then put the large eclip on. Also, in step 8 where the 3 shims are installed, you should use four shims NOT 3.
this will provide a tighter fit to prevent sloppy gear mesh but still provides
just enough play for proper operation. You will also notice the car will produce less noise which I like, especially if you run a 64pitch!
Brendan a.k.a. "Spanky"
TEAM LOSI 22SCT ..... 22T 2.0 ..... 22 2.0
Orion----Promatch Racing----Spektrum---Proline---Island Raceway
"Gone But Not Forgotten" --- RC10T, RC10T3, RCTc4, XRay007, XXT, XXTcrGraphitePlus, XXXT, XXXTMF, XXXTMF2----