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Author Topic: Removing the ignition lock assembly  (Read 483443 times)

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Marks DTM Calib

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Removing the ignition lock assembly
« on: 13 June 2008, 11:42:17 »

Remove the upper and lower steering wheel cowls.

The upper cowl is secured by two screws on the front of the assembly which can be accessed by rotating the steering wheel to the 3.00 and then the 9.00 positions

The lower cowl is attached by 3 screws from below.

Now, insert the key and rotate it until it is in the I position.

Now insert a small allen key as shown below into the small hole in the steering lock assembly and remove the lock barrel.

When re-fitting, if the steering lock bolt snaps in (steering lock will be on) push locking stone downwards using a screwdriver until the retaining bolt snaps in

Now re-fit the lock assembly

Note: The following requires care!

With the lock assembly removed, it is now possible with great care (keep the key in the lock assembly) to dissassemble the lock mechanism (beware of small springs!) to remove, clean and then lube the 10 or so plungers.

It is also possible to adjust the plunger profiles using a fine file with the key fitted to overcome sticking ignition locks.
« Last Edit: 13 June 2008, 11:48:31 by Mark »


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Removal of ignition switch guide
« Reply #1 on: 17 December 2016, 15:17:33 »

Suggested addition:

With the key in position 1, insert a small screwdriver into the connector release hole, keeping the screwdriver at the key end of the hole, and press firmly inwards on the plastic tang, which is part of the switch, to release the latch, at the same time as pulling / levering the connector off the switch. It is a tight fit but if it doesn’t move you haven't depressed the latch enough or have pressed on the wrong part of the latch.

A replacement switch manufactured by Febi appeared to be an OE GM part with the GM ground off.
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