Here's a question without any redeeming social value.
Both my Triumphs have exhibited the same behavior for a long time so
I assume it is a universal feature of a typical LBC hydraulic clutch.
When the car is first started up, the clutch disengagement point is
somewhere near the upper third of the pedal travel. But as the
engine heats up, the disengagement point moves up, as if the
hydraulic line was slowly becoming pressurized. Every morning the
disengagement point has reverted back to mid-pedal again.
What causes this? 1. Air in the line?? They don't feel soft. I
imagine it would take a *LOT* of heat to expand any air enough to
affect the behavior. 2. Softening or stiffening of the rubber seals
as they heat up? 3. Incomplete returning of the slave cylinder? The
process seems to depend on drive time (perhaps 5 to 10 minutes), but
not especially on the number of times I use the clutch during that
time. 4. Girling's attempt to emulate the renowned Lucas
reliability?
Inquiring minds really want to know.
Tanks.
--
Jim Muller
jimmuller@pop.rcn.com
'80 Spitfire, '70 GT6+
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