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Return springs on rear brake shoes.....?
Posted: Sat Dec 01, 2012 7:45 am
by oliver-morrisminor
Hello I have had a look in the workshop manual I have and it does not mention it,
but which spring goes closest to the brake cylinder,
the thicker full length spring or the thinner partially sprung spring?
Re: Return springs on rear brake shoes.....?
Posted: Sat Dec 01, 2012 7:50 am
by MarkyB
It's the thinner partially sprung spring, putting the springs on the back of the shoes works best from memory.
Re: Return springs on rear brake shoes.....?
Posted: Sat Dec 01, 2012 12:40 pm
by mike.perry
Workshop Manual Fig M15 shows divided spring against cylinder and single spring at other end of shoes
Re: Return springs on rear brake shoes.....?
Posted: Tue Dec 04, 2012 9:30 am
by oliver-morrisminor
Thanks Mike and Marky for your reply's.
I have gone out to my shed tonight to swap the springs around, but there was no clearance ton the rear one to do so. It fouled the baking plate.
Then I thought I would have a look at the picture Mike refered to, and to my surprise one of the springs are differant to the
one in the brake drum.
See pictures below:

Workshop manual.

I have hung similar spring below for comparison.

And here is a close up of the two springs.
As you can see one of the springs is different to listed in the book.
Also of note the front brakes carry the same springs.
The brakes seem to work well,
I am now confused........
Re: Return springs on rear brake shoes.....?
Posted: Tue Dec 04, 2012 10:08 am
by mike.perry
I think that I have those springs in my brakes. The short spring just holds the shoes together and the long spring has to compress the piston.
You have the wrong brake shoes in that photo. Only one shoe should have the cutout to fit the adjuster, those are front brake shoes.
Re: Return springs on rear brake shoes.....?
Posted: Tue Dec 04, 2012 1:15 pm
by kennatt
they can also be done without taking the hub off.
Re: Return springs on rear brake shoes.....?
Posted: Tue Dec 04, 2012 9:13 pm
by MarkyB
The brakes seem to work well,
That's what matters at the end of the day.
As has been said, the hubs don't need to be removed for this job.
Re: Return springs on rear brake shoes.....?
Posted: Tue Dec 04, 2012 11:47 pm
by DAVIDMCCULLOUGH
The hub is part of the brake drum on the sidevalve, held on the big splines and then a nut and split pin.
Re: Return springs on rear brake shoes.....?
Posted: Wed Dec 05, 2012 7:13 am
by oliver-morrisminor
Mike in the workshop manual diagram, bothshoes do have the adjuster recess,
its just that they are both placed on the slave cylinder side on the diagram.
Those springs that I have seem to be alot tougher than the others,
this I assume would lead to a more opositive return of the shoes,
but I imagine a harder pedal.
I am going on a test run this evening so I am sure they work fine but I will advise.
Thanks for everybody's comments.
Oli
Re: Return springs on rear brake shoes.....?
Posted: Wed Dec 05, 2012 11:19 am
by ian.mcdougall
If you reverse the top shoe as per the workshop manual the angle of the spring will change and it will be closer to the cylinder as the holes look to be in different positions on the shoe and then it may not foul on the back plate????
Re: Return springs on rear brake shoes.....?
Posted: Wed Dec 05, 2012 5:54 pm
by mike.perry
Despite what the workshop manual says, there should definately be only one shoe with a recess on the back brakes, the boxes should have different part numbers and the shoes should be the same for all the Minor back brakes.
Check that the other side has the same shoes and if you have not fitted the fronts then check that all the front shoes have adjuster recesses, just in case they are in the wrong boxes