Brakes binding..any suggestions?

does seem to be generating too much vacuum in the servo eh.
as the servo has a diaphram in its middle, the air (vacuum) must be enabled to let the diaphram release back to its "not brakes on" setting,
but why? - can you temprory fit an elastic bungee strap from pedal to ? dash or somewhere pulling pedal upwards ?
as someone suggested the foot pedal is not returnng to its resting or non pushing position?

wild guess here, but if the servo has an airfilter to release pressure after use, is it blocked by insects?

its a pain in the r-se I know, but its keeping my old brain thinking!
keep at it,
and keep telling us how ya doing with it.

easye1 said:

does seem to be generating too much vacuum in the servo eh.
as the servo has a diaphram in its middle, the air (vacuum) must be enabled to let the diaphram release back to its "not brakes on" setting,
but why? - can you temprory fit an elastic bungee strap from pedal to ? dash or somewhere pulling pedal upwards ?
as someone suggested the foot pedal is not returnng to its resting or non pushing position?

wild guess here, but if the servo has an airfilter to release pressure after use, is it blocked by insects?

its a pain in the r-se I know, but its keeping my old brain thinking!
keep at it,
and keep telling us how ya doing with it.

Click to expand...

The servo is remote as the car would be built/designed left hand drive, there is a bar across the bulkhead from pedal to servo, this mechanism is free and not sticking so pedal is coming back up to where it should be.

was thinking servo air filter myself but cant see it anywhere, bet its at the back !

Brother called in today with car and no problems whatsoever since servo pipe disconnected (except hard pedal of course)
Also the hesitation/ cutting out momentarily has gone away as well. The engine would cut out when throttle applied shortly after braking for roundabout for instance.

We are going to try it tomorrow and then if all ok, refit the vac pipe and see if problems reoccur, bet they do

So servo at fault...

tell your bro in law to wear slippers after you connect back up eh,
bet he stops on a sixpence( 5p piece in new dosh)

easye1 said:

tell your bro in law to wear slippers after you connect back up eh,
bet he stops on a sixpence( 5p piece in new dosh)

Click to expand...

Had a look at some pics of servo but cant see filter anywhere, think the last one I did was a piece of foam like a thick half crown but cant find it on this one, must be at the back somewhere or the servo wouldn't work

Well, car ran faultlessly for two days with the servo vac pipe disconnected and blanked off.

Connected vac back up tonight and the brakes do not stick on nor is there any problems with the engine hesitating like before

I'll give it a day and see what happens

landowner said:

Well, car ran faultlessly for two days with the servo vac pipe disconnected and blanked off.

Connected vac back up tonight and the brakes do not stick on nor is there any problems with the engine hesitating like before

I'll give it a day and see what happens

Click to expand...

a bit of an air leak into the inlet manifold would make the engine run a bit like a pig too!
vacuum is provided to the servo from the inlet manifold somewhere?

easye1 said:

a bit of an air leak into the inlet manifold would make the engine run a bit like a pig too!
vacuum is provided to the servo from the inlet manifold somewhere?

Click to expand...

I recon the servo was the cause of the hesitation because it only happened after braking for say a junction or at the end of the motorway slip road, brake then accelerate and the engine cut out like switching the ignition off for a second but then picked up like nowt had happened.
Not done it at all with the servo pipe off and blanked off..

Dont know why the brakes didn't stick on when he took it home tonight with the pipe back on, maybe its cured it

Just get a new servo when payday comes around. I doubt whether it's worth trying to repair them these days. I used to mess about sourcing individual components, but I seldom bother nowadays. One of my upcoming jobs on my defender is to overhaul the brakes at the next major service interval, and rather than spend hours messing about with refitting tiny rubbery rings and plungers on the same old rusty components I might just buy complete new items.

Brown said:

Just get a new servo when payday comes around. I doubt whether it's worth trying to repair them these days. I used to mess about sourcing individual components, but I seldom bother nowadays. One of my upcoming jobs on my defender is to overhaul the brakes at the next major service interval, and rather than spend hours messing about with refitting tiny rubbery rings and plungers on the same old rusty components I might just buy complete new items.

Click to expand...

yeh, very true..

Right.
My brother drove the car to work this morning with vac pipe reconnected, no issues except for a slight engine hesitation again, that was driving on roads around the town and no motorway.

Coming back this evening he took the motorway, brakes free and car able to roll freely at the lights before joining the motorway.
Seven mile motorway journey at sixty five to seventy without touching the brakes.
At motorway exit brakes near on fire, they came on during the journey so Brown was correct, servo faulty and applying brakes without touching pedal.

Disconnected vac pipe and brakes freed off.

New servo 95 quid plus vat so lookin on ebay see if I can get one cheaper.

oh well, its only ya brakes.....lol

trial and error, with input from us landie loonies worth millions eh..

will remember this thread..