MGB & GT Forum
Can a single in line Brake servo be permanently removed from an MGB
Posted by adrianm
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Apr 29, 2024 09:18 PM
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I think I had a failed single line brake Servo, can I just bypass it by connecting the in and out brake lines together if so should I then cap the hose that goes to the manifold? My understanding is the servo is not required is this correct?
Edited 1 time(s). Last edit at 2024-04-29 09:19 PM by adrianm.
Edited 1 time(s). Last edit at 2024-04-29 09:19 PM by adrianm.
29desoto
M Wayne Sanders
Otis, OR, USA
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1965 MG MGB V6 Conversion "Carmine"
1973 MG MGB GT "Eliza - FIRST PLACE - MG2013" 1984 Chevrolet Corvette "The Green Weenie" 1994 Chevrolet S10 "Lil Red" |
Apr 29, 2024 11:10 PM
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Joined 13 years ago
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A picture would help. I can't visualize what you're asking.
Wayne Sanders
Rose Lodge, OR
(TD 4288)
"I don't care to belong to any club that accepts people like me"-joined Willamette Valley Club in 2011
79/65 MGB - Carmine- V-6 - T-5
This car is now very nearly completely done. Sure to find something else, but not now.........And 12 years later, I'm starting to fix things that were new when we built the car. It's pretty well de-bugged!
Wayne Sanders
Rose Lodge, OR
(TD 4288)
"I don't care to belong to any club that accepts people like me"-joined Willamette Valley Club in 2011
79/65 MGB - Carmine- V-6 - T-5
This car is now very nearly completely done. Sure to find something else, but not now.........And 12 years later, I'm starting to fix things that were new when we built the car. It's pretty well de-bugged!
Apr 30, 2024 02:40 AM
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AFAIK any booster on a single line system is an aftermarket fitting IE the Factory didn't do it so just revert back to the Factory hydraulics.
Mk1: CKD 11/66 first registered 8/5/67; owned since 3/77. 18GB +40 balanced. Peter Burgess BVFR head. Piper 285. 123. FidanzaFW. 4synch c/r box. Lots more as I did a nut and bolt rebuild; finished 2015. Tartan Red.
GT: December '78. VW Golf guards, flush fit front and rear valances. Torana XU1 vents, frenched indicators & Mk1 rear lights. 'Worked' Rover V8 with Monsoon ECU for EFI. GM4L60E, Lokar tiptronic & Quick4 controller. Vintage Air A/C. FC IFS. CCE 4 link rear. Salisbury with Quaife. Jaguar Storm.
Edited 1 time(s). Last edit at 2024-04-30 03:20 AM by MGB567.
Mk1: CKD 11/66 first registered 8/5/67; owned since 3/77. 18GB +40 balanced. Peter Burgess BVFR head. Piper 285. 123. FidanzaFW. 4synch c/r box. Lots more as I did a nut and bolt rebuild; finished 2015. Tartan Red.
GT: December '78. VW Golf guards, flush fit front and rear valances. Torana XU1 vents, frenched indicators & Mk1 rear lights. 'Worked' Rover V8 with Monsoon ECU for EFI. GM4L60E, Lokar tiptronic & Quick4 controller. Vintage Air A/C. FC IFS. CCE 4 link rear. Salisbury with Quaife. Jaguar Storm.
Edited 1 time(s). Last edit at 2024-04-30 03:20 AM by MGB567.
Apr 30, 2024 03:21 AM
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Topic Creator (OP)
Apr 30, 2024 04:22 AM
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Topic Creator (OP)
Apr 30, 2024 04:25 AM
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allanreeling
Allan R
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Apr 30, 2024 06:29 AM
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Remote Servo I suppose Barrie. They were a factory option, but later standard before the in-line servo/Mc.
If the Servo slave seals leak, the fluid finishes up in the inlet manifold, and thus the combustion chambers. You WILL notice that.
soonerv8
Do it right, do it once!
If the Servo slave seals leak, the fluid finishes up in the inlet manifold, and thus the combustion chambers. You WILL notice that.
soonerv8
Do it right, do it once!
dickmoritz
Dick Moritz
Philly 'burbs, PA, USA
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Apr 30, 2024 06:34 AM
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Single line servo was a factory option, remotely mounted...
Dick
Errabundi Saepe, Semper Certi
(Often wrong, but always certain)
Dick
In reply to # 4791215 by MGB567
AFAIK any booster on a single line system is an aftermarket fitting IE the Factory didn't do it so just revert back to the Factory hydraulics.
Errabundi Saepe, Semper Certi
(Often wrong, but always certain)
Apr 30, 2024 07:47 AM
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In reply to # 4791254 by dickmoritz
Single line servo was a factory option, remotely mounted...
Dick
Dick
In reply to # 4791215 by MGB567
AFAIK any booster on a single line system is an aftermarket fitting IE the Factory didn't do it so just revert back to the Factory hydraulics.
I stand corrected. I honestly thought they hadn't offered it at the time and that M-E had come up with an aftermarket option - well IDK that it was only a M-E option just that it was fitted after leaving the Factory - my bad.
Mk1: CKD 11/66 first registered 8/5/67; owned since 3/77. 18GB +40 balanced. Peter Burgess BVFR head. Piper 285. 123. FidanzaFW. 4synch c/r box. Lots more as I did a nut and bolt rebuild; finished 2015. Tartan Red.
GT: December '78. VW Golf guards, flush fit front and rear valances. Torana XU1 vents, frenched indicators & Mk1 rear lights. 'Worked' Rover V8 with Monsoon ECU for EFI. GM4L60E, Lokar tiptronic & Quick4 controller. Vintage Air A/C. FC IFS. CCE 4 link rear. Salisbury with Quaife. Jaguar Storm.
Apr 30, 2024 08:45 PM
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In reply to # 4791161 by adrianm
I think I had a failed single line brake Servo, can I just bypass it by connecting the in and out brake lines together if so should I then cap the hose that goes to the manifold? My understanding is the servo is not required is this correct?
A previous owner had installed an aftermarket brake servo on my 1964 car. It didn't work when I bought the car and I was not able to repair the servo. So I brought the car back to stock: removed the servo, made a new brake line from the master cylinder to the T-junction, and capped the vacuum connection at the manifold. I didn't want to leave the too long brake lines in the car, which is why I didn't simply connected them but took them away.
Not-Anumber
Chris S
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May 1, 2024 04:17 AM
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I dont see any complication here, you pay you're money and take your choice.
Remove it = The braking system is a stock, single circuit, servo less system
Replace it = The braking system is a single circuit system with the factory option of servo assistance
Or this might be an opportunity to switch over to a dual circuit MC and mechanical servo. This would also need the later pedal box and pipework.
Remove it = The braking system is a stock, single circuit, servo less system
Replace it = The braking system is a single circuit system with the factory option of servo assistance
Or this might be an opportunity to switch over to a dual circuit MC and mechanical servo. This would also need the later pedal box and pipework.
Topic Creator (OP)
May 1, 2024 06:23 AM
Joined 8 years ago
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May 1, 2024 06:30 AM
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In reply to # 4791724 by adrianm
Thanks my question was about the process of removing the servo In particular the vacuum hose connection
Not how I understood your topic title and Jeroen has first hand Experience but then IDK to whom you're replying.
Mk1: CKD 11/66 first registered 8/5/67; owned since 3/77. 18GB +40 balanced. Peter Burgess BVFR head. Piper 285. 123. FidanzaFW. 4synch c/r box. Lots more as I did a nut and bolt rebuild; finished 2015. Tartan Red.
GT: December '78. VW Golf guards, flush fit front and rear valances. Torana XU1 vents, frenched indicators & Mk1 rear lights. 'Worked' Rover V8 with Monsoon ECU for EFI. GM4L60E, Lokar tiptronic & Quick4 controller. Vintage Air A/C. FC IFS. CCE 4 link rear. Salisbury with Quaife. Jaguar Storm.
Edited 1 time(s). Last edit at 2024-05-01 07:24 AM by MGB567.
twentyover
Greg Fast
Lives in SoCal, Moving back to ancestral homeland, the Pacific NW, USA
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May 1, 2024 07:55 PM
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Don't know if the pedal ratio for a factory servo would be the same as a non-servo system. Most power assist systems is a 4:1 ratio for PB cars and about 6 or 7:1 for non-boosted brakes . May want to check, a 4:1 ratio would require a powerful leg
allanreeling
Allan R
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May 2, 2024 03:31 AM
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If all you needed to know was concerning the vacuum, I really don't know why you are asking. Plugging the manifold take-off is the easiest part of the process.
The stock remote servo is only 1.6:1 Ratio, and very much doubt whether MG used a different pedal.
soonerv8
Do it right, do it once!
The stock remote servo is only 1.6:1 Ratio, and very much doubt whether MG used a different pedal.
soonerv8
Do it right, do it once!
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