I guess it may loose a bit in the bushes, mine were all new and smeared with moly grease.
Jim From: Darren Siepka Sent: Monday, March 25, 2019 9:27 AM To: [email protected] Subject: Re: [Quantum Owners] Brake master cylinder conversions Whilst comparing setups for my swap I wondered how much effort we loose in the plastic bushes too, especially at the servo end with the shortest arm. The mg crossbar has needle roller bearings supporting both ends of the crossbar! This will surely help frictional losses.i wonder if similar could be done for the original fiesta setup? Darren On Mon, 25 Mar 2019, 09:13 Jim Hearne, <[email protected]> wrote: I had the same problem when i put Willwood 4 pot calipers on my 2+2, that has the early brake setup. There are 2 different brake pedals with the hole for the bar that goes through the bulkhead in different places, one gives you more pressure on the master cylinder but at the expense of more pedal travel. I may have a picture somewhere. I drilled another hole in the already better option pedal , even higher up, this helped with the pressure but gave more pedal travel. It certainly stops now, i did a couple of track days in it. I also have a feeling that the brake pads either glazed or weren't the best material choice, i bought another set of a more road spec but never got around to fitting them to see if they made a difference. I thought i may have been loosing travel with the servo brackets flexing so i plated in the open sides and strengthened to ends, but this made no difference. You can also adjust the pushrod in the servo to remove any play before the pushrod contacts the end of the master cylinder. But, be careful with this, i got it too close and it wasn't letting the master cylinder fully retract. This had the effect that as the fluid got hot it gradually applied the brakes, not so good. What bore is your master cylinder ?, it should be stamped on the side. I know anything with a bias bar won't pass an IVA test unless it's welded up but not sure if it's an MOT failure. Also, without a servo you will need some muscles. Jim -----Original Message----- From: 'Bob Craig' via Quantum Owners Group Sent: Sunday, March 24, 2019 5:39 PM To: Quantum Owners Group Subject: [Quantum Owners] Brake master cylinder conversions 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. I'm thinking that my master cylinder may be faulty and just looking at options. I know the later type cylinder is a bit like rocking horse poo these days and if going to the extent of changing, I'd rather have a more performance focused set up. Has anyone fitted the Burton Power bias assembly. It does away with the standard servo and master cylinder. https://www.burtonpower.com/adjustable-bias-brake-assy-ford-fiesta-mk1-mk2-mk3-brk061.html Bob -- -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s). --- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to mailto:quantumowners%[email protected]. For more options, visit https://groups.google.com/d/optout. -- -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. 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Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s). --- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
