Jonas -
The servo is plumbed, so it is possibly the problem. It is basically
almost the same type servo as used on BJ8s.
Although the vacuum piston may not have vacuum on it, it still may
have partially activated. If you are using the old style vacuum
piston servo, likely the rubber seal put under the piston's leather
seal is too big (very common problem) and is forcing the piston in the
on position.
Try tapping the servo with a rubber mallot, carefully on the flat face
of the vacuum chamber. If that releases the brakes, then the fat seal
is your problem. Cut the seal in half and reinstall.
Alan
On 5/27/10, Jonas Payne <jpayne@thorcon.net> wrote:
> Not sure what the etiquette is for asking non Healey Questions........
>
> Have recently replaced the entire hydraulic system on my Jag xk 150, The car
> has a servo, which I have plumbed in, but did not attach the vaccum line to.
>
> Also replaced the master cyl with an "equivalent" unit that showed up with a
> pushrod that was way too short, so I reused the old rod and attempted to set
> up at the same length.
>
> Brakes will not release and remain firmly clamped on discs after bleeding.
> The car won't even move. Is the problem not having the servo hooked up or
> related to the adjustment of the master cylinder rod?
>
> Jonas Payne
> Director of Preconstruction
> Thor Construction
> PH: (702) 269-2007
> Fax: (702) 269-7095
> Cell: (702) 358-5084
>
>
>
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--
Sent from my mobile device
Alan
'52 A90
'53 BN1
'59 Jag Mk IX
'64 BJ8
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