Thread: SIII Brake Hoses. Metric or Imperial (UNF)

The part number is different from the S2a, but perhaps more significantly, the part number changed again from July 1980, which seems to be likely to be a change to metric, although the change could have been from 2a to 3.

Sorry this doesn't really help that much!

John

Yukky isn't it!

I hate the way that the double leading shoes on the front brakes are difficult to bleed. My plan is to use the very early S2a FC system where there is a bracket on the swivel housing and the brake pipe goes to the bottom cylinder and the bleed nipple is on the top. The problem is that the only brake hoses with the correct ends are the SIII ones.

Diana

So no-one knows whether SIII brake fittings are UNF or were they always metric?

I can't honestly say that i've ever checked!

Diana give Dwayne at MR Automotives a call or email, iam sure he will give the answer you want.

mrautomotive - Home

I knew this'd come in handy one day! Not so long ago I looked at my friend's old 1974 PBR parts catalogue. It listed all the brake hose p/n's and dimensions.

Series 2,2a brake and clutch hoses all 3/8" UNF: H638 - 15-1/8" long; H572 - 15-1/2"; H718 - 16-1/8". One flared end to fit pipe, one end to fit cylinder with copper washer.

Series 3 use a different brake hose on the front wheels 3/8"UNF: H586 - 17-3/8" long; H744 - 14-3/8". Both ends flared to fit pipe. Rear brake hose same as 2as.

Series 3 clutch hose H851 - 7/16"UNF x 10-7/8" long. Flared both ends.

FC brake hoses also include:
- H574 - 2a type, 3/8"UNF x 17" long;
- H847 - 2a type, 3/8"UNF x 15" long;
- H810 - 3 type, 3/8"UNF x 11-3/8" long.

I realize this might be a bit confusing, but I hope it helps.

Dan.
69 2a 88" pet4, 74 3 109" pet4, 68 2b FC pet6.

They'll be UNF, Rangies changed to Metric brake line fittings in 82, so One would assume likewise for Land rover

Originally Posted by dandlandyman

I knew this'd come in handy one day! Not so long ago I looked at my friend's old 1974 PBR parts catalogue. It listed all the brake hose p/n's and dimensions. ....

... Series 3 use a different brake hose on the front wheels 3/8"UNF: H586 - 17-3/8" long; H744 - 14-3/8". Both ends flared to fit pipe. Rear brake hose same as 2as.

FC brake hoses also include:
- H574 - 2a type, 3/8"UNF x 17" long;
- H847 - 2a type, 3/8"UNF x 15" long;

... I realize this might be a bit confusing, but I hope it helps.

Dan.
69 2a 88" pet4, 74 3 109" pet4, 68 2b FC pet6.

Dan

Have beel looking and investigating and even looked at a ex-mil SIII But didn't measure (How stupid).

• Did you happen to write down the Rover part number that matched the PBR book?
• In the SIII do you know if the H586 was for the front of the military extended shackles/chassis?
• In the S2a F/C, was the H574 3/8 UNF flares at each end?

I got some SIII hoses from the Kotara place but they didn't know if they were Mil Spec. so am thinking that they are the H744 and am worried on full articulation I may part the hose.

I may have to jack up the vehicle so I can get full articulation and measure!

Diana