Hi Erik I would be very surprised if adding servo system would alleviate screeching brakes as a servo just "assists" by applying additional pressure. Screeching is normally associated with uneven wear or contamination (obviously not the case with your completely new set). It could be misalignment though - either the calliper being offset or the disc not running true. One other thing though - are you getting full stopping power?- It's highly unlikely, but if the brakes are only being pushed a small distance then the pads would rub the disc and not actually grab it. I f this is the case, them the fault could lie with the master cylinder. I'm not an expert in car brakes at all - although I have stripped and rebuilt my '87 Morgan's and a few others over the years. I do strip, bleed, rebuild Mountain Bike hydraulic brakes on a regular basis. I also service the cars that my wife's business uses (these use a single circuit, single disc and calliper off a moto scooter) and although simpler and smaller the principles (and fixes) are the same.
Did the brakes screech before the rebuild? If so when was the last time that they didn't screech? Was it prior to the car standing for a long period? Are you sure that the cylinders are moving evenly - even after the calliper rebuild? Is there any play in the road wheel relative to the calliper? I really don't think that fitting a servo will solve the problem. Look elsewhere for the cause. The servo is there to aid your right leg! (or left one if you're driving really fast)!! Best regards David David Ashworth Director Klarus Consulting Limited Email: enquir...@klarusconsulting.com Tel: +44 (0) 7810 155714 This email transmission is confidential and intended solely for the person or organisation to whom it is addressed. If you are not the intended recipient, you must not copy, distribute or disseminate the information, or take any action in reliance of it. Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Klarus Consulting Limited. If you have received this message in error, please do not open any attachment, but notify the sender, then delete this message from your system. Please rely on your own virus checking systems as the sender takes no responsibility for any damage rising out of any bug or virus infection. On 2 Jun 2012, at 18:57, Erik Andresen wrote: > Hi Andy > It is my hope that this will solve the problem of screeching brakes. > I have new discs, brake pads and repair kit for calipers. > And of course a better braking power. > > The MMC servo assist from later cars, is this to a single circuit braking > system? > > Erik > > > > On 02/06/2012 07:46 "Andy Garlick" <andy.garl...@yahoo.com> wrote: >> Erik >> Why do you feel you need a brake servo? >> The light weight of the +4, and its powerful brakes are more than capable of >> slowing the car down without one. Even the racers do not use servos on +4s , >> +8s are another matter due to their heavier mass, and faster approach speeds. >> >> The best solution would be to use the MMC servo assist from the later cars ( >> the master cylinder and servo are all one unit, and the sizing is correct >> for a Morgan) . Using a separate servo means plumbing it in on the bulkhead . >> >> However I would try a later car with servoed brakes before you embark on the >> this conversion, I don't think you will get much benefit. If you can >> generate enough pedal pressure to lock the front brakes , you don't need a >> servo. >> >> Andy >> >> From: Erik Andresen <mor...@7295.dk> >> To: mogtalk2 <mogtalk2@listbox.com> >> Sent: Friday, 1 June 2012, 17:13 >> Subject: [mogtalk2] Brake servo unit on a +4 >> >> Hi all. >> I have a Morgan +4 with a TR4A engine from 1966. Does anyone have experience >> with changing the brake system with a brake servo unit. >> Regards Erik >> View posts on The Mail Archive >> http://www.mail-archive.com/mogtalk2@listbox.com/ >> Modify Your Subscription >> >> >> View posts on The Mail Archive >> http://www.mail-archive.com/mogtalk2@listbox.com/ >> Modify Your Subscription > View posts on The Mail Archive > http://www.mail-archive.com/mogtalk2@listbox.com/ > Modify Your Subscription ------------------------------------------- View posts on The Mail Archive http://www.mail-archive.com/mogtalk2@listbox.com/ [http://www.mail-archive.com/mogtalk2@listbox.com/] Modify Your Subscription: https://www.listbox.com/member/?member_id=22459785&id_secret=22459785-4a39ddf8 Powered by Listbox: http://www.listbox.com
