Quote:
Originally Posted by Jim Jamieson
To get a good handbrake on the 75 you have to start at the beginning.
I’ve run 75’s since 2002 and now on my third and haven’t fitted a compensator on any of them, well not quite correct as I have a different system on my Wedgwood V6
To start strip off the rear brakes completely with the drum / disc removed and handbrake adjustment inside the car fully slackened off.
Using a Dremmel or simmilar remove the rusty lip which gathers on the inside edge of the drum adjacent to where the brake shoes make contact.
Next using a sanding disc on the Dremmel lightly sand the inside of the disc to de glaze and remover any rust and brake contaminants from the surface.
Then light sand the surface of the brake shoes, again to de glaze them.
Lightly lubricate the mechanical parts of the handbrake mechanism ensuring the cables are nor seized. You need a helper for this to operate the handbrake inside the car while you check the movement at the rear.
By trial and error manually adjust the rear shoes so that the rear drum / disc is a tight fit then pull up the handbrake lever suffiently to centralise the shoes.
Most likely the rear drum will be slack again so re adjust the brake shoes just enough to have a rubbing clearance to turn the disc while it is attached.
Now re adjust the handbrake inside the car until the rear drums lock up at the third click on the handbrake.
If you have to run this adjuster up fully you can fit a Tubular spacer strong enough and long enough to take up any stretching on the short cable which joins the cables from the rear to the handbrake itself.
Run a test with the rear wheels fitted, pull up the handbrake one notch at a time and check the progress at each wheel.
I get a partial lock up at two notches with a full lock up at three, sometimes four but no more than that.
Point to note. Remember to wear a dust mask when doing this type of work.
I sometimes forgot about this and am now paying the consequences.
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This I have done in between normal adjustments...I have also put new drums/disc's and shoes on You can lock the wheels when off the ground at three clicks but when you have the weight of the car on the ground there is no chance.On a good slope even with six clicks on the H/B it wont hold.