Brake Master Cyl stuck in Servo

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Magenta Auto Sprint
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Brake Master Cyl stuck in Servo

#1 Post by Magenta Auto Sprint »

I am trying to remove the brake master cylinder from the servo on my 1979 Dolomite 1850.

The car has been sat for 15 years and I suspect that the spigot diameter has corroded inside the servo. I have sprayed loads of plus gas on it but no success.

I have tried tapping it in all directions too.

any other suggestions please?

Malcolm
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Toledo Man
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Re: Brake Master Cyl stuck in Servo

#2 Post by Toledo Man »

I'd suggest some gentle heat but that might not be such a good idea with all the PlusGas. It might need a bit more time to work it's magic.
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xvivalve
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Re: Brake Master Cyl stuck in Servo

#3 Post by xvivalve »

Yep, some stick like you wouldn't believe.

Heat can help as can gentle percussion; I say gentle as on the car I bought that had no wheels, my 'tapping' caused the reservoir (which had admittedly gone brittle) to shatter!
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Re: Brake Master Cyl stuck in Servo

#4 Post by Jon Tilson »

Maximum leverage on the end of the cylinder both up and down and side to side.

They always come off in the end.

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Re: Brake Master Cyl stuck in Servo

#5 Post by Mahesh »

Have someone press (hard) on the brake pedal at the same time, may help ?
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Re: Brake Master Cyl stuck in Servo

#6 Post by xvivalve »

Mahesh wrote: Sun Jul 02, 2017 6:24 pm Have someone press (hard) on the brake pedal at the same time, may help ?
Apparently pushing hard on a brake pedal with no fluid in the system is the sure fire way to destroy the unique bakelite component in a Sprint servo, especially, for some reason, those fitted with a single line cylinder...but the good news is reported in my post about servos...
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