Thanks, I didn't realize that!!
Jim
-----Original Message-----
From: Jim [mailto:cartr4a@ameritech.net]
Sent: Friday, April 21, 2006 8:43 PM
To: Jim Bauder; triumph list
Subject: Re: [TR] More TR250 problems!
I found on my pressure differential switch that there is no seal at the
switch. The seals are on either side of the piston. If they are working,
the center of the switch should be dry and nothing can leak out the switch
hole. A new switch won't stop the leak. New seals inside will.
Jim
'67 TR-4A
'68 GT6
'73 spit6
http://www.geocities.com/britishiron2000
Jim Bauder <jimbpps@cox.net> wrote:
Listers,
I installed all of the hydraulics systems a couple of weeks ago and filled
them with silicon fluid a few days ago. I had the usual loose connection
or
two and they have been corrected.
Unfortunately, I have two problems that seem to be true problems!
1. The clutch master cylinder (MC) is leaking at the rear and dripping on
to
the cockpit floor. After pulling the MC and disassembling it, I discovered
that I had inadvertently installed the wrong sized main seal! I have a
spare
correct sized seal (probably the one I was supposed to install!) anyway
that
is an easy fix. The real issue that I discovered while disassembling the
MC,
is the little steel 'nail' that holds the plastic cup and the wavy washer
and fits into the slotted hole in the little steel doohickey that goes
through the large spring, is BENT!! I have no clue how that happened, I
did
operate the clutch pedal, that's when I discovered that the seal leaked.
But
there was no resistance to the pedal movement as there was no pressure
build
up in the slave cylinder due to the leak. The nail is not available as far
as I know except in a new MC. I could buy a new MC as they are available,
but I am afraid that it won't look 'original' and/or won't have the
standard
fittings and mate up with the original hydraulic lines. The bore of the MC
on the car is .70, the Moss catalog indicates that the TR250 should have a
.75 bore, Moss shows the .70 bore MC to be for the TR6!! I believe that it
is a new MC, or at least it looks new. Unfortunately, the car was almost
completely disassembled when I bought it.
2. The pressure differential switch leaks. The switch is apparently
available along with the pressure differential valve rebuild kit. And they
are reasonably priced, I am planning on rebuilding the valve and replacing
the pressure differential switch.
Have any of you all 'been there, done that' with either of the above
problems? I would imagine that either the TR4A or TR6 systems would be
similar if not the same, as the TR250.
Any comments and/or advice would be welcome!
TIA,
Jim
Jim Bauder
'68 TR250, CD47L
TR web site: http://www.triumphowners.com/647
Scottsdale, AZ
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