Series 1...Day

[brendanm]

Titled the tread 1...Day as that's when it will be finished. Been sitting idle for a year or so, while I have been working on the Defender, but starting to gain momentum again. The idea was to learn a bit more of the mechanical workings and have a car either on Historic rego or an occasional driver.
Completed so far-
Fabricated & fit new cross member/ sandblast and spray chassis
Drift out and replace all suspension bushes
De rust, paint, grease and repack leaf springs and replace bushes
Rebuild steering box and relay/ fit new tie rod ends
Check gearbox and transfer/ new gaskets & rubbers
Fabricate replacement firewall pillars to replace rusty lower sections
Straighten front bumper

[brendanm]

As with most projects it starts out trying to restore back to original though, I got sidetracked. In checking over the differentials, removal of the rear axle proved a stumbling block. Reading indicated it was pressed in with a 20 ton press. The reputation these components have as a weak link made me a bit nervous of driving the car further a field on completion. I decided to replace the rear with a later model from a series 2. With the philosophy of getting a bear, then make it a Grizzly I fitted a Sailsbury. The front track then needed to be widened to match. With wheel spacers illegal, I came across a reinforced military front housing again from a later series model that would match the width. On fitting the front housing I installed the needle rollers shimmed the series 1 castings so visually the knuckle casting are correct from the top to the steering linkages and modified the series 2 from underneath. This should reduce steering effort. While going I located some period free wheeling hubs and have fitted them along with some lifted military shackles
.40322

40323

My next step is where the questions start. With larger diameter brakes, which can only be a good thing. I need to source and fit a Brake Master Cylinder. Would a series 1 Brake Master Cylinder from a 107 suit the volume of fluid displacement for 11 inch front and 10 inch rear drums? The front system has Slave cylinders top and bottom. I am able to source both the Brake fluid supply tank and a 107 Master cylinder from the UK although they are expensive compounded by 75 pounds to delivery. Is there a better supply already hear in Australia?

[123rover50]

I have done the same with the brakes. 11" front and 10" rear. Bought a LWB CB cast steel master cyl from 4 wheel drives. Not OEM of course but see how it goes. Not on yet but cost $60 plus PP.

[brendanm]

Hi 123rover50
Could you please clarify. This CM LWB master cylinder, is this out of a later series so the mounting would be different going from 3 bolt to 2.And is there any change in length that may effect the mounting position
Thanks Brendan