[quote name="Project84" post="3690127" timestamp="1618049050"]
[quote name="mab01uk" post="3687947" timestamp="1616541407"]
This is another anti-theft device I used to fit to my Minis. It was originally developed to stop the theft of commercial vehicles. The 1970's Autosafe device was connected within the hydraulic brake line between the wheel brake cylinders and the master cylinder. When the Autosafe key was turned the first press of the brake pedal actuated the device to inhibit the fluid flow within the brake system thereby maintaining the pressure and locking the brakes on. To release the brakes the Yale security key had to be used.
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My old man has something similar (all be it more modern) on this then new Isuzu Trooper - it was effectively a line lock operated via a cut key and worked in conjunction with an alarm.
It operated by stopping the car, inserting the key, pump the brake pedal until it was hard, with the foot hard on the pedal, turn the key & remove. It would also arm the alarm giving you 10 seconds to exit the car before going off.
The brakes would be locked on making the car pretty much immobile - a point that was made some time later when someone tried to nick it off his drive.
The TWOC's had used a stolen Transit to pull it onto the road with a rope, then tried to bump start it using the same van.
The following morning the police knocked at the door asking had he seen the Trooper - dad pointed to the empty space on the drive - turns out the car and the van were at the end of the road - blocking it where they had left it and given up - back door/spare wheel stoved in, skid marks all up the road!
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