78 bay rear brake help

I’m having a right head fart so help would be appreciated.

Is this the correct way the spreader bar should be between the shoes?

 

Looks just like mine!
I would put a chamfer on the linings.
Tony

 

B

 

The top and my pic at the bottom are wrong as the spreader bar is upside down.
I thought I had done what you did and got the spreader bars on the wrong sides of the van but when I pulled one side the spreader bar was the correct way up
Yet on the other side it was upside down.

 

I take it the middle pic is correct?

 

Your right think spring should have recess above it.

 

Ok so in this side I think I’ve now got the orientation of the spreader bar correct
With the raised pressed section at the top.


The manuals are hopeless as they don’t cover later bay brakes.

Turning my attention to the bottom spring orientation.

I recall zed saying this was the correct orientation for the bottom spring and something to do with the handbrake cable but can’t remember what or why.


Also I’ve no hydraulic braking at the moment
If I try to adjust the handbrake with no way of moving the pistons out of the cylinders are the shoes going to pop out of the slots in the pistons?

 

The spreader bars are handed you might have two of the same.

 

Cheers mike
That diagram is most useful
God knows what I’d done but I’ve got it all correct now.

Any ideas if the shoes will pop out of the slots in the pistons if I try adjusting the shoes to use the handbrake without any hydraulic braking available
I’d imagine normally the fluid in the system would take up the slack.

 

Shouldn't, most cylinders have a spring to keep the pistons pushed out.

 

That is correct the extended part of the lower spring is to stop the handbrake cable swinging down and slipping off the lever. Dickys is wrong.

 

Thanks again

 

Unfortunately no springs in the rear cylinders

So I’ve put a pair of callipers on the card and will reinstate the hydraulic system.

Few questions
Is this the correct position for the brake light switches on a lhd or should they be on the side nearest the chassis rail.
Also is it the front or rear port on the master cylinder that feeds to the brake compensator valve before heading to the rear?

 

Wow that’s very clean , I applaud your skills and attention to detail

 

Brake switch look OK, the brake pipes should both come out the ports on the same side. The port nearest the servo is usually the rear brake.

 

Cheers

 

I know this thread is old, but it has just really helped me whilst doing my brakes ref retaining spring etc. Once again TLB comes to the rescue.