Mark Seymour - Reference and Resources

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Ginetta G40 Headlamps Info

The headlamps on a G40 are bright and the suspension is stiff, resulting in what appears to be flickering for oncoming cars. The lamps are correctly set by the factory using a Tecalemit machine, but you may want to get them lowered slightly for comfort on the road (e.g. avoiding flashes from oncoming cars).

High-beam headlamps and sidelights

The outer lamps provide side-light and high beam. You can adjust the lights from inside the clamshell with a flat screwdriver, as shown in the photo.

Replacement lamps are available from Ginetta at approximately £105, or possibly from Car Builder Solutions (linked from image below).

Main-beam headlamps

The inner lamp is the main beam (low beam) and you can adjust the height and direction with the mounting screws, as with the high beam light (above). Test the height of the lights against a marker board after making the adjustment, or take the G40 into a garage and get them tested on a Tecalemit-type optical machine.

Replacement lamps are available from Ginetta, or possibly from Car Builder Solutions (linked from image above).

Replacing and protecting the lamps

These lights get smashed quite easily when on track, due to gravel flying off other cars.

Replacing the high-beam lamp is relatively straightforward as long as you have the complete assembly (lamp with mounting screws and connectors) and take a note of the adjustment settings on the broken lamp.

To replace the lamp, remove the four mounting / adjusting screws where they join the car body by turning the black connectors. Remove the whole connector from the body, don't be tempted to unscrew the lamp up the thread, as this will take a long time and is fiddly.

Measure the position of the mounting / adjustment screws and set the new lamp to the same settings before fitting to the car. 


For racing, most drivers protect the lamps with tape. I prefer to use clear covers, as the lights will still be usable if required. Plastic salsa pots held on with tape may look a bit rubbish, but they work fine and are super-cheap to replace.