411 brake problems

[peter dowdle]

Kevin I purchased my range rover cylinder from Ritter Landrover in Burwood. The part no on the invoice was LR RTC3657. These are all over the internet for mid late 70s and early 80s Range Rovers. All series 1 and 2 411s seem to have the same cylinder ( although Brother Geoffs had something different from what he tells me). They all had the twin tanks separate from the unit itself. They are an old fashion looking unit with an unusual mounting system. I suspect their supply dried up and were forced to change to the more modern cylinder which seems common on all series 3 to 5 cars.

My conversion has been a great success.

[peter dowdle]

NB. The 410s had a completely different system

[Kevin H]

Originally Posted by peter dowdle

NB. The 410s had a completely different system

Yes I realised this when I looked at the parts diagrams for the 410. According to Girling the one attached is the one they supply to Bristol for the 410 (two per vehicle).

Peter the Range Rover one you used won't fit the 411 S5 because the mounting flange is 90 degrees out.

[Kevin H]

Claude,
If you haven't yet removed the master cylinder, the attached section from the 411 user's manual may help. The second page is probably redundant if you are replacing it with a different part.

Interestingly the instruction clearly refer to the type of master cylinder fitted to the 411 S1 and S2. There is no mention of the type fitted to the later 411s.

[peter dowdle]

A few comments and questions

1/ Where did you get the copy of the removal and replacement instructions

2/ Following those instructions no matter where I placed the master cylinder I could not remove the fulcrum pin that attaches to the pedal there is not enough space to move the pin sideways

3/ The range rover cylinder I purchased has two mounting hole the same as is shown on the 410 diagram . They are above and below the cylinder , There are 2 studs on the firewall which slip into the holes and 2 nuts secure it all. I had to make a plate with these studs attached and mount it on the cabin side of the firewall. Isnt this the way the series 5 mounts?

[Kevin H]

Hi Peter,

To answer your questions:

1. The instructions are from the Bristol 411 Owners Manual

3. Sorry, my mistake! I had googled "Range Rover Classic brake master cylinder" and found this one https://goo.gl/images/5eXtwP , however the part number is slightly different to the one you gave me, which DOES look the same as the one on my 411. (see attached)

[Kevin H]

According to Girling, this is the master cylinder they supplied to Bristol for the 411 (see attached image). Peter this looks very similar to your original one.

The Girling master cylinder part number 64068550 cross references to Chrysler UK part number 3058872.