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Carisma GT14 Servo Twitch Blog

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Sponsored by Eclipse Hobbies.

One of the first issues we faced with our Carisma GT14 cars was a strange steering behaviour. The car would develop a twitchy steering wobble.

On inspection this was electronic rather than mechanical. We spent hours trying to re-sync the electrics, replacing batteries and adjusting drift and steering tolerances.

In the end we realised that this was an issue with the steering servo itself. Through general wear and the odd bit of mistreatment, the servo had overheated and developed this odd issue. This can be confirmed by smelling the unit that usually had a distinct burnt odour.

Replacing the servo with a new one solved the issue. This takes around 20 minutes, here are my tips:

• Work in a clean space with plenty of room for storing the parts and screws you remove.
• Detach the servo from the receiver.
• Unscrew the existing servo from the bottom. Just two screws need to be removed.
• Pop off the old servo from the steering arm.
• Screw the new servo onto the mounting arms and attach to steering arm.
• To avoid over stressing the servo it must be adjusted to ensure it doesn't hit the other parts that are in close proximity.
• Ensure it has free travel both left and right. You can adjust this by aligning the steering head on the servo - although the factory setting is usually fine.
• Screw the new servo into position.

Written by Rupert Stelling

You can support Rupert by buying Carisma GT14 Servo Twitch



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Rupert Stelling writes the Radio Controlled Gamer column.

"Having grown up racing Tamiya radio and remote controlled cars and trucks I was keen to get my kids started on the same hobby. Here, I share my R/C reviews and guides to getting started in this electric and petrol powered world."

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