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Sold
by simon8201 - 09/09/26 01:46 PM
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Wales
by Joske Vermeule, September 1
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Jun 14th, 2026
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Joined: Feb 2007
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Talk Morgan Regular
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Talk Morgan Regular
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Ah, you have a servo. Right, well, I had a problem once with a BMW with brakes binding. Bleed them and it would be OK for a while then gradually get worse and when warm brakes would get hot, bleed them again and all OK for a while etc etc. It was a servo seal. Slightly different to your symptoms but could be something like this?
Simon
2002 4/4
1936 Austin 12 light 4 Ascot saloon
2023 AMG Mercedes C300e estate
2021 Audi A1 sport
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Joined: Aug 2011
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Learner Plates Off!
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Learner Plates Off!
Joined: Aug 2011
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I had a similar problem with a Jaguar, it turned out to be insufficient lenght in the rod from the brake pedal to the master cylinder. I took me ages to figure it out.
Some days the brakes would bind and sometimes they wouldn't.
Lengthened the rod a few threads and it never happeneed again.
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Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
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The MGB servo had a removeable air filter on the side. Not sure if the Morgan servo has this - it could be through the pushrod channel on modern servos.
Have you checked inside the drums for an accumulation of lining dust? If there is dust with the merest hint of either wetness. or a fluid leak it will cause stiction.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Apr 2010
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L - Learner Plates On
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L - Learner Plates On
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Robbie,
there is a constructive specificum of the front brake pads position to the rotors. Unlike another cars, the upper edge of the pads is some 3mm higher than the rotors outer edge. This menas, that during the wearing process, there is no left an edge on the rotors (showing the original thickness of the rotors). The rotors grind with their outer rim into the pads. This might be a source of vibrations and other symptoms.
The help is to bevel (chamfer?) the upper edge of the pads, so that they do not jut out over the rotors.
I hope to have explained it understandable, difficult with my limited engineers english...
Peter
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L - Learner Plates On
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L - Learner Plates On
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Hi all,
Robbie around 1990 I had a similar trouble on a Corvette, but a lot older (1967) than your car: after replacing all the components of the braking system, I resolved the problem with replacing the flexible pipes that have been corrupted and partially obstructed. So the pressure took some delay to release and permit to the brakes to come back at the waiting position. I never knew the origin of this trouble, perhaps topping with an incompatible brake fluid ? I don't know.
BR.
Daniel.
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PeterD
Thanks for the suggestion and your English is just fine. Unfortunately this isn't the problem as the pads have been chamfered.
Vampirex, that is an interesting one - I'll check this out
Ivan - I'll check the rod bit in the morning - it may be that when the car is warm the rod is binding slightly somewhere -- Thanks!
Cheers! folks - food for thought -- keep it coming!
Robbie
2021 Plus Four -- Helga
211-WX-1433
"Fettlebodge"--A chief of the PaddyMogs
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Salty Sea Dog Member of the Inner Circle
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Salty Sea Dog Member of the Inner Circle
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Time to fit some Aeroquip braided hoses Robbie 
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly
'11 MINI Countryman Cooper D All4
'90 LR 90 SW
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Graham,
Are they made specific for Morgans? if so where can one get them??
Robbie
2021 Plus Four -- Helga
211-WX-1433
"Fettlebodge"--A chief of the PaddyMogs
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Scruffy Oik Member of the Inner Circle
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Scruffy Oik Member of the Inner Circle
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Uncle Melvyn, as always...
Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE
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Robbie
2021 Plus Four -- Helga
211-WX-1433
"Fettlebodge"--A chief of the PaddyMogs
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