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Rear Hubs.
There have been issues with the rear hub breaking, after clipping a track marker,
or another car. In some cisrcumstances, the wishbone is also broken. Obviously
if this happens to you it's a little annoying as your race is then run. The hub breaks
at the bottom, where the castor links are screwed into place at the back, and
where is attaches to the wishbone on the front.
So how do you stop this from happening?
The answer is to get yourself a long nut and bolt, andreplace the two screws on
the front and rear of the hub with one long bolt. The hubs are drilled all the way
through in most cases, so you shuold not need to drill the hub to carry out this
modification. The bolt I used is a 40mm M3 bolt with suitable washers against
the head of the bolt, and at the end where the nut goes. It really is a simple fix, and
it is worth doing from the start. This modification does not cause any loss of tun-
ing options available on the rear hub.
It is this screw that is replaced by the 40mm M3 bolt, washers and nut.
Front Gearbox Top.
The front gearbox top is not something that needs modification, but there can be
problems during the course of a race with the gearbox top, due to the
manufacturing process of it.
During a race, the rocker pivots can actually work loose,
causing bizzarre handling charactersitics and ultimately no
suspension on one or both sides of the front of the car. To get
round this , simply epoxy the rocker pivots into the gearbox
top, or use plastic friendly threadlock.
The use of epoxy is fine, as you will only remove the
rocker cranks in the event of breaking a gearbox top, and when
this has happened, the epoxy simply cracks and falls away from the
rocker cranks and you can re-use them in your new gearbox top.
You may notice that when you build the car, the rocker pivots are at slightly
different angles. Unless the angle of the rockers forces your suspension to drop at
significantly different levels, this difference is not that critical. If the rocker arms
are at vastly different angles, send the top back to T.Tech and they will replace it
FOC for you.
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