DIY: Line Lock
If you plan on racing your car on a drag strip, you may be required to install a line lock system in your car. This system will allow you to manually brake the front wheels of your car so that the car does no roll forward at the start of the race and cause you to receive a penalty. When disengaged, the line lock will have no effect on normal driving.
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Things You'll Need
- Jack
- Jack stands
- Brake line lock kit
- Bushing adapter
- Brake line fittings
- Electrical wire
- Plastic wire ties
- Required tools
Instructions
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1
Jack up the front of the car and place the car on jack stands. Remove the front tires of the car for easier access to brake lines and other brake parts.
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2
Survey the area under your hood near the fuse box, and between the master brake cylinder and front wheel cylinders, for a location with enough space to mount the line lock solenoid.
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3
Connect either a 1/8-inch-to-1/4-inch inverted flair or 1/8-inch-to-3/16-inch inverted flair bushing adapter to the two-threaded port port on the solenoid. The bushing adapter size is determined by the diameter of your current brake lines.
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4
Connect the master brake cylinder to the solenoid port labeled "Master." Connect the remaining brake line to the remaining port. Connect brake lines using the proper size of brake line fittings based on the current brake lines.
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5
Connect the ground wire from the solenoid to a clean contact area and the hot wire to a 12-volt source of power. Place a fuse holder between the solenoid and the power source.
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6
Wire the switch included in the brake line lock kit to a location in the cab of the vehicle that is within easy reach of the driver with 22-gauge wire. Secure all loose wires with plastic wire ties to keep them from interfering with the driver.
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7
Release all air in the brake lines by bleeding the brake system. Replace any brake fluid that is released.
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8
Test the brake system of the car while the car is still on jack stands. Make any necessary adjustments. Do not attempt to drive the car until you have successfully tested the brake system.
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References
- Photo Credit Tom Pennington/Getty Images Sport/Getty Images
