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TR2/3/3A Seized rear brakes


Senior Member
Country flag
My TR3 has sat for a very long time, the rear brakes are seized bad!
Any TR specific tricks to getting the drums off? They don't turn at all and it's quite the mess at the backing plate so I can't tell if there's a star wheel adjuster?
Thanks for any suggestions!


Country flag
No star wheel. Opposite the cylinder there is an adjuster with a small square headed adjuster on the back (inner) side of the brake back plate.


Country flag
There is a special square wrench for the adjuster that will help prevent you from rounding the corners of the adjuster. The adjuster may be frozen in place.
Had to get the rear drum off a friends TR3B and I managed that by hammering on the drum but it is hard to get a good swing at most of the drum.
A large gear puller may work.

Good luck.


Jedi Hopeful
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The 5/16 square drive wrench is really a good tool to have for this. I was able to use a 8pt socket but intend on getting the wrench with my next Moss order.


Darth Vader
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Also check the the rear rubber brake lines as they may have collapsed and the blocked lines are preventing brake fluid movement.


Senior Member
Country flag
Thanks guys, I'll have a look for that adjuster and I should order that wrench. I'm not a big fan of these square bolts. Couldn't get the oil plug out either.
I'll check the brake lines too but I'm pretty sure rust fusion is the main issue.


Jedi Knight
Country flag
And lastly if you are not familiar with these brakes there are two screws on the front (outside facing) of each drum. Those hold the drum onto the axle.


Country flag
Worst case you will need to bust the tin backing plate free (probably with chisels and whatever---- it is a 3 pieces system of tin) on the wheel cylinder to break the adjust free to move and to buy you some space for the shoes to move into and free the drum.



Jedi Knight
Country flag
Some times problems can only be dealt with a bigger hammer. A good hit on each may let the springs move the shoes. In any case it will be tight at best.

Bob Claffie

Jedi Knight
Country flag
If you try to loosen the adjuster with the square fitting be aware that as that square fitting begins to turn it also EXPANDS the "pegs" inside the wheel cylinder until it has gotten over the first ramp of the adjuster making the drum all the tighter.
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