Diego Posted May 26, 2021 Share Posted May 26, 2021 Hello friends, I'm looking for a place to order a replacement Brake Booster, or Brake Servo for my '74 Manta A. Can't seem to find anything, so I was hoping there was an upgrade available from a different Opel, or a compatible replacement from a VW or something. Any Help is appreciated. Quote Link to comment Share on other sites More sharing options...
rutts Posted May 29, 2021 Share Posted May 29, 2021 Manta b fits and opel rekord fits. Quote Link to comment Share on other sites More sharing options...
Shug Posted May 29, 2021 Share Posted May 29, 2021 VW polo one fits. Check the size as you get different ones. I tried a Manta b one. Didn't fit as it was larger and hit the chassis leg. Quote Link to comment Share on other sites More sharing options...
rutts Posted May 31, 2021 Share Posted May 31, 2021 On 29/05/2021 at 10:34, Shug said: VW polo one fits. Check the size as you get different ones. I tried a Manta b one. Didn't fit as it was larger and hit the chassis leg. Polo fits with work involved. B fits depends which servo for which master. Delco or ATS Quote Link to comment Share on other sites More sharing options...
Enfield Posted October 31 Share Posted October 31 Hi, Wonder if anyone can help, I have a 1971 Manta A automatic. I have recently changed the auto brake pedal for a manual one, well my size 9 clodhoppers were getting tangled up in the excessively large automatic brake pedal which was over 6" wide. Every time I pressed the brake pedal I crushed my left foot! (the wonders of intelligent design!) Now that I no longer have a pain in my left foot, I am finding that the brakes don't appear to work to work very well. If I press the brake pedal gently, the car slows down gently, If I want to slow down more rapidly, I press harder and nothing extra seems to happen, and the brake pedal appears solid. Then the pedal moves down slightly and retardation increases. pressing harder the same thing happens again. Something seems to be sticking. Obviously not good for brakes!. When the brakes are off the car rolls freely, and the master cylinder has obviously released. Is the problem likely to be the Master Cylinder, the vacuum control valves, or the Servo? Since Servos for the Manta A and Manta B seem to be in short supply, and the servo's themselves are not serviceable. Does anyone have some good pointers to exactly which alternative servo might fit (make, Model and Year)? Since the servo is an absolute hairy B***h to get out, I only really want to do this once more! Many Thanks Enfield, Chester Quote Link to comment Share on other sites More sharing options...
cam.in.head Posted October 31 Share Posted October 31 there not too hard to change but yes they are getting harder to come by if yours is actually faulty . a basic check would be to turn off the engine and press the brake a few times untill the servo is empty of vacuum . then press the pedal and keep it pressed whilst starting the engine. pedal should move down an inch approximately . a hard pedal could indicate many things . seized wheel cylinders or caliper pistons or hard brake linings ? 1 minute ago, cam.in.head said: there not too hard to change but yes they are getting harder to come by if yours is actually faulty . a basic check would be to turn off the engine and press the brake a few times untill the servo is empty of vacuum . then press the pedal and keep it pressed whilst starting the engine. pedal should move down an inch approximately . a hard pedal could indicate many things . seized wheel cylinders or caliper pistons or hard brake linings ? and yes a mk1 golf 1.8 is similar althou the pushrod is slightly different Quote Link to comment Share on other sites More sharing options...
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