According to STANDARD and TRIUMPH Service Information sheet SPORTS/11/R dated
September 1957, the restrictor valve is as Bob Labuz wrote. It is to keep
the pads in close proximity to the rotor to minimize pedal stroke. The
concern was that the rotor would "rock" in hard turns and that this action
would push the pads away from the rotor. The existence of the restrictor
should have no impact on mild mannered straight line driving. It would be
interesting to hear from someone doing serious rallying.
In a message dated 7/30/00 2:54:42 PM Eastern Daylight Time,
dixie4@wales.freeserve.co.uk writes:
<< I always understood that a restrictor valve in the brake circuit was to
reduce pressure to a particular part of the system to prevent lock-up under
heavy braking.
>>
In a message dated 7/30/00 11:11:21 AM Eastern Daylight Time,
yellowtr@borg.com writes:
<< Dave,
The restrictor valve keeps a bit of pressure in the line to hold the front
pads
flush to the rotor. When working correctly this prevents excess pedal travel
the next time you hit the brakes. You might try to get a replacement.
Bob Labuz
1958 TR3A
1974 T140V
Dave and Ann Smith wrote:
> Michael et al:
>
> You say you removed the restrictor valve? What was it's purpose? Mine looks
> kinda corroded inside on the seat. I'd like to just toss it.
>
> Dave
> 60 TR3 partially restored >>
Bill Babbitt
TR3A in a bag
Gales Ferry, Ct
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