Brake master cylinder upgrade
Discussion
Hi,
I know this has been covered before, but I can't find it.
Many years ago I upgraded the brakes to 300mm discs with Princess 4 pots. Had problems after with long travel on pedal. I foolishly adjusted the servo rod to compensate for this.
Due to plenty spare time, nowadays, I was looking to complete this job properly with a more suitable master cylinder. Can someone please help with a source of a suitable master cylinder of a large internal bore. The original cylinder id was 13/16" or the 20.64mm. Was looking for something along the lines of 24 mm id.
I know this has been covered before, but I can't find it.
Many years ago I upgraded the brakes to 300mm discs with Princess 4 pots. Had problems after with long travel on pedal. I foolishly adjusted the servo rod to compensate for this.
Due to plenty spare time, nowadays, I was looking to complete this job properly with a more suitable master cylinder. Can someone please help with a source of a suitable master cylinder of a large internal bore. The original cylinder id was 13/16" or the 20.64mm. Was looking for something along the lines of 24 mm id.
Just reading with interest, I’m no tvr wedge expert. I’m thinking, what size master cylinder was used on the actual princess car fitted with those calipers. Find out those dimensions and then see what Ford item to fit your servo has the nearest dimension to suit.
The other thing is long pedal travel isn’t really an issue unless you run out of travel.
The other thing is long pedal travel isn’t really an issue unless you run out of travel.
I have heard of using a land rover Master Cylinder as an upgrade for the Capri for a similar reason (have a look on http://www.fordcapriforum.com/). However as you have retrofitted what is effectively the same solution as TVR used on the 400SE (which I have) I don't find the pedal travel excessive could the MC you have be the wrong one to start with ?
I did some research a few years ago and came up with part number NRC9529 and it may be a potential option for you. It's a 23.8mm master cylinder used on the defender 90. One thing to note is that the L/R master cylinders generally seemed to be mounted horizontally, and come with a "flat" fluid reservoir. I needed one which mounted at an angle and had a "sloped" fluid reservoir. I was able to remove the reservoir from my old M/C and fit to the L/R M/C to get around that problem.
It's worth noting that the L/R units have 2 outlets, not 3 as the Cortina had. You'll need a splitter or tee-piece somewhere in your setup. From memory, the outlets on the NRC9529 are metric. Earlier defender 90s had imperial outlets and one was an odd size.
It's worth noting that the L/R units have 2 outlets, not 3 as the Cortina had. You'll need a splitter or tee-piece somewhere in your setup. From memory, the outlets on the NRC9529 are metric. Earlier defender 90s had imperial outlets and one was an odd size.
Managed to get a MC off a Landy 110, c/w reservoir. Fits my mounting and as mentioned has odd sized outlets. Front outlet is 12mm, rear is 10mm and I've got a tee ready to rock.
Only cost £40. Result. New old stock.
Unfortunately we've just been locked down again, here in Aberdoom, and I can't get out to my mates workshop to do the biz.
Forgot to mention that this MC sits the right way up and I still need to check the ID.
Only cost £40. Result. New old stock.
Unfortunately we've just been locked down again, here in Aberdoom, and I can't get out to my mates workshop to do the biz.
Forgot to mention that this MC sits the right way up and I still need to check the ID.
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