Rabsim@aol.com wrote:
>
> I have not seen my posting on the digest., Perhaps I Mis-sent it. Could my
> problem possibly be brake-fade? I was not travelling at a high rate of speed..
> I was mostly in traffic. The problem disappeared when the car cooled down but
> I'm afraisd to drive it when it is hot..
> ---------------------
> Forwarded message:
> Subj: Re: 1980 TR7 (conv) brakes
> Date: 97-08-19 19:32:55 EDT
> From: Rabsim
> To: triumphs-owner@autox.team.net
>
> I am new to this list but have owned my 1980 TR7 conv(drophead?) since 1987..
> It is not a daily driver but my "fun-car". I have it insured as a
> "collectible". A problem which I had about 3 years ago recurred this
> afternoon. I was driving in stop and go traffic and it was rather warm
> outside. After a while , the brake pedal seemed to go down pretty close to
> the floorboard. (I try not to drive in traffic since the last time this
> happened.) The master cylinder is full / no leaks anywhere/ the wheel
> cylinders do not appear to be leaking. Could this be a problem with the
> master cylinder? I pumped the brakes after this happened and was able to
> drive home uneventfully but I left a wide margin in front just in case. If
> it is the master cylinder are there rebuild kits (a few years ago I was able
> to get one for the clutch cylinder which WAS leaking or are entire mater
> cylinders available? In general, are parts still available from the same US
> suppliers as they used to be? (I haven't received a catalogue from the
> Roadster Factory for example in a long time? ) ..
> Thanks very much for the info. BTW I have about 34K miles on the odometer..
> I'm ashamed to say that I purchased it in '87 with 28K miles and have only
> driven it 6K miles in 10 years. It spends most of its time in my garage and
> only comes out in nice weather.
> I enjoy reading the postings on this list. (I am also a NAISSO
> mermber and subscribe to its list -the National Association of Impala Super
> Sport Owners -'94-96 since I own a '95)..
> Maurice Simckes/ Rabsim@aol.com
By the sounds of your problem, I would guess that the brake lines or
calipers have water in them. When things are cool, the water isn't
compressible. When the water boils after lots of stops, the steam
compresses and the pedal goes to the metal (so to speak). After cooling,
things get better. Just as a first step, try bleeding. Its cheap and
doesn't take a lot of time.
Vic Whitmore
76 Spitfire
Thornhill ,Ontario
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