[Quantum Owners] Brake master cylinder conversions

2019-03-24 Thread 'Bob Craig' via Quantum Owners Group
After upgrading my already upgraded 2+2 brakes from Cosworth single piston calipers and huge discs to a much lighter Hispec billet 4 pot system, I can't get a decent brake pedal and have next to no braking force. I purged all the old brake fluid and refilled with dot5.1, pressure bled everything

Re: [Quantum Owners] Brake master cylinder conversions

2019-03-24 Thread Susan and Martin Scott
Did you have dot 3 fluid in originally? If any fluid (other than 5.1) has been used with the brake parts the seals won't last long if the fluid is then changed to 5.1. due to fluid incompatibilty. Martin Scott - Original Message - From: "'Bob Craig' via Quantum Owners Group" To: "Qu

Re: [Quantum Owners] Brake master cylinder conversions

2019-03-24 Thread Darren Siepka
I have the escort service upgrade on my saloon ( documented on the club site) I am currently fitting a mgf servo ( with pedals and crossbar) and master cylinder in place of my later type servo etc to my 2+2 I hope to fit the abs too :-) That master cylinder is available in non abs too. It copes wit

Re: [Quantum Owners] Brake master cylinder conversions

2019-03-24 Thread Darren Siepka
Should say escort servo! On Sun, 24 Mar 2019, 18:20 Darren Siepka, wrote: > I have the escort service upgrade on my saloon ( documented on the club > site) > I am currently fitting a mgf servo ( with pedals and crossbar) and master > cylinder in place of my later type servo etc to my 2+2 I hope

Re: [Quantum Owners] Brake master cylinder conversions

2019-03-24 Thread 'Robert Craig' via Quantum Owners Group
Hi Martin, Not sure what was in it before but yes, possibly dot 3. I did wonder about switching to dot 5 but it seemed like a sensible approach when going to a higher spec system. Bob Sent from my iPad > On 24 Mar 2019, at 17:57, Susan and Martin Scott > wrote: > > Did you have dot 3 fluid

Re: [Quantum Owners] Brake master cylinder conversions

2019-03-24 Thread 'Robert Craig' via Quantum Owners Group
Hi Darren, That's an interesting MG conversion. Will your Escort parts be available or are you keeping them? Just weighing up options at the moment. Burton also do a floor mounted pedal box which would completely do away with all the Ford parts but it's pricey. Bob Sent from my iPad > On 24 M

Re: [Quantum Owners] Brake master cylinder conversions

2019-03-24 Thread Susan and Martin Scott
Ignoring the fluid change. What is the combined area of the pistons compared to the previous single ones? I may know an alternative, but it depends what the requirements are. It could be that a larger bore master cylinder is needed, but some dimensions will be needed to calculate. Martin -

Re: [Quantum Owners] Brake master cylinder conversions

2019-03-24 Thread Darren Siepka
If all goes well with the 2+2 conversion then yes the saloon will be getting the same mgf conversion too, but it won't be till later in the summer when it gets its new engine and autobox. On Sun, 24 Mar 2019, 19:37 'Robert Craig' via Quantum Owners Group, < quantumowners@googlegroups.com> wrote:

Re: [Quantum Owners] Brake master cylinder conversions

2019-03-24 Thread Susan and Martin Scott
They can't be mixed - hence the IVA requirement to label the master cylinder reservoir. I had 'a near issue' with guy doing an MOT test on my Rickman a couple of years ago - he asked why I had a container of DOT5.1 fluid in the car, and suspected I had a leak. I explained to him I didn't have a