Corally 10SL, Инструкция по эксплуатации, Страница: 18 / 22

Corally US differential adjustment and maintenance.
To test the differential hold both rear wheels then try to turn the spur gear with your right thumb. If the gear turns without extreme force then
tighten the diff nut in the centre of the right wheel a small amount. Repeat this process until the gear cannot be easily rotated when both wheels
are being held.
Servicing the differential.
Unscrew the diff nut and carefully remove each component, making careful note of the order in which they are fitted (refer to the sectional dra-
wings if necessary). Check the bearings in the centre of the spur gear and the drive plate, clean if necessary. Clean the 1/8" balls, the diff
washers, the spur gear, and thrust bearing. Worn diff balls are often the cause of poor differential action, so if they are old or if the diff has been
slipping a great deal, then try a new set. If you suspect that the diff washers are worn then firstly try building the diff with the washers turned
over so that the balls run on the other face of the washers. If you have already done this once or if the diff still feels rough then they will need to
be replaced.
Ball pivot servicing.
The 10SL utilises simple, but highly effective ball pivots on the Side Links and Base Pivot. It is important that the movement of these pivots is free
and smooth. To service the ball pivots simply remove the large rubber O-ring and the Side Links or Base Pivot Plate can be lift away. The plastic
socket can then be removed in two pieces. Please note that at the Corally factory these ball pivots are matched in sets to ensure that smooth, play
free movement is maintained. Do not mix the ball and socket sets.
Check the system for play or binding, if the pivot system is worn or damaged then replace. There are also plastic pivot clips available as an
alternative for the O-rings. It is not usual for play to be evident.
Basic chassis set-up.
Most chassis tuning is to be done to give a good balance between front and rear traction. Too much front end traction will cause the car to turn
too fiercely or even spin, this is referred to as ‘oversteer’. Too much rear end traction will cause the car to turn far less than the front wheels are
actually asking it to do. The car will ‘push’ or ‘understeer’ wide in the turns. The car will also scrub off speed due to the extra lock on the turned
front wheels. It is critical that you tune your car to give a good balance between front and rear grip. The ideal situation is for the car to negotiate
the turns without under or oversteering. The minimum amount of steering lock should be used as this will ensure that the car carries its speed
through the turns.
Corally cars are designed to give maximum traction, with neutral and stable handling. This is a good starting point on most tracks, but not all
tracks or conditions are the same.
Choosing the right tires
Choose the best available highest bite tire for the rear of the car and then balance the car with the front tires. If the car pushes or understeers
then fit front tires with more grip (softer). If the car oversteers or hooks then fit front tires with less grip (harder).
Choosing the right tire diameter
When a tire is new and has a large diameter it will provide more grip than the same tire when it has worn down and has a small diameter.
Remember the following:
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Larger tires have more rolling resistance then smaller tires.
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Smaller tires are not so good over bumps as larger tires.
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When more steering is required use smaller rear tires or larger front tires.
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When less steering is required use larger rear tires or smaller front tires.
Tire additive
Once the correct tires have been selected, you have experience of the best ways to treat them and what the different diameter achieve, you can
fine tune the car by adjusting the amount of additive used on the front tires. Always apply the additive across the full width of the rear tires and on
the inside of the front tires. Ensure that you treat each front tire exactly the same amount.
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