    
Bob uk
Unregistered guest
Posted From: 94.197.122.76
| | Posted on Sunday, 29 June, 2014 - 08:33 am: |    |
I have noticed over years that any mention about shadows will have a comment about the complex hydraulics
My intention is to bust this myth and allay owners anxiety
Head pressure is the pressure from gravity
Which in a shadow is the hight of the tank to the other bits
This preassure is acting of caliper seals when the brakes are off
Via the dump circuit in the brake valves and the master cylinder circuit
This small amount of pressure helps keep seals against whatever it seals
Fiat in tech docs refer to it as residual pressure
When new and no problems good seals etc Morris minors because then master is under the floor with the reservoir very little head pressure and in service they were known for leaky wheel cylinders
As soon as the brake pedal is depressed the seals seal and brakes pedal hard
The position of reservoir in the moggie made bleeding harder
Shadow
Dot should freely run from all brake bleed nipples engine off no pressure
If not the hoses are blocked
Because the ride rams are high this system has no head pressure therefore won't gravity bleed
In the next episode I will explain about the brake valves
And sucking eggs for the ones who already know
(Message approved by david_gore) |