high temperature damaging floor pump?

John Forrest Tomlinson said:

Is there any risk to a floor pump kept in a car in the summer from
high temperatures?

Might melt the little rubber grommet thingy?

Bill "you're safe from explosions" S.

I had a Bell composite pump that worked for a couple years before I left it in
the back of my car, then the main tube warped. Still worked, just a little bit
fussy.

Pumps aren't going to last forever, the rubber gasket needs lubrication, and the
lubrication causes deterioration, so if you get three or four years out of one,
that's all she wrote. Some people have got much longer use out of them, depends
on how lucky you are.

Like the other poster said, the rubber parts are going to deteriorate much more
quickly in the trunk, where temperatures can get kind of high.

"John Forrest Tomlinson" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Is there any risk to a floor pump kept in a car in the summer from
high temperatures?

JT

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Dale Benjamin said:

Pumps aren't going to last forever, the rubber gasket needs lubrication, and the
lubrication causes deterioration, so if you get three or four years out of one,
that's all she wrote. Some people have got much longer use out of them, depends
on how lucky you are.

Tell that to my 20-year-old Silca floorpump. Now I feel better about
not replacing it with an easier-to-pump newfangled one. I have replaced
the leather pump gasket once, put on a different head, and repainted it.

Rob

is there any lube that will not kill the rubber?

wle.

Dale Benjamin said:

Pumps aren't going to last forever, the rubber gasket needs lubrication,
and the lubrication causes deterioration, so if you get three or four
years out of one, that's all she wrote. Some people have got much
longer use out of them, depends on how lucky you are.

I have an over 20 year old Medai pump that is still kicking. We used
it at a bike shop I worked at. The owner was convinced it was worn out
so he threw it away. I fished it from the dumpster, fixed it, took it
home, and have been using it ever since. The only maintenance is
masaging some grease into the leather plunger and fixing the hose when
it bursts. Unfortunately the pump is not very efficient so it takes
more strokes than most pumps. Last year my wife insisted that I get a
new pump. I still have the old Medai to loan to people when they need
one. Begars can't be choosers y'know.
--
Bruce

I wonder how pump efficiency might be measured ... and worsened? (F x d) -
(heat of compression) - (heat of piston contacts) is the numerator. What
will you put in the denominator? And I just noticed IEEE.org

"Bruce Jackson" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Dale Benjamin said:

Pumps aren't going to last forever, the rubber gasket needs lubrication,
and the lubrication causes deterioration, so if you get three or four
years out of one, that's all she wrote. Some people have got much
longer use out of them, depends on how lucky you are.

I have an over 20 year old Medai pump that is still kicking. We used
it at a bike shop I worked at. The owner was convinced it was worn out
so he threw it away. I fished it from the dumpster, fixed it, took it
home, and have been using it ever since. The only maintenance is
masaging some grease into the leather plunger and fixing the hose when
it bursts. Unfortunately the pump is not very efficient so it takes
more strokes than most pumps. Last year my wife insisted that I get a
new pump. I still have the old Medai to loan to people when they need
one. Begars can't be choosers y'know.
--
Bruce

John Forrest Tomlinson said:

Is there any risk to a floor pump kept in a car in the summer from
high temperatures?

Plastic bits may warp or shrink in the heat. Other than that, it
shouldn't matter.
--
Typoes are a feature, not a bug.
Some gardening required to reply via email.
Words processed in a facility that contains nuts.

"Bruce Jackson" wrote: (clip) Last year my wife insisted that I get a new
pump.(clip)
^^^^^^^^^^^^^
There could be some question about the pump, but don't get a new wife!

Bruce Jackson said:

Dale Benjamin said:

Pumps aren't going to last forever, the rubber gasket needs lubrication,
and the lubrication causes deterioration, so if you get three or four
years out of one, that's all she wrote. Some people have got much
longer use out of them, depends on how lucky you are.

I have an over 20 year old Medai pump that is still kicking. We used
it at a bike shop I worked at. The owner was convinced it was worn out
so he threw it away. I fished it from the dumpster, fixed it, took it
home, and have been using it ever since. The only maintenance is
masaging some grease into the leather plunger and fixing the hose when
it bursts. Unfortunately the pump is not very efficient so it takes
more strokes than most pumps.

it's not inefficiency, it's low volume which in turn allows high
pressure. maybe not so relevant today with lower pressure clinchers,
but very important for high pressure tubie riders.

Quoted message said:

Last year my wife insisted that I get a
new pump. I still have the old Medai to loan to people when they need
one. Begars can't be choosers y'know.
--
Bruce

wle said:

is there any lube that will not kill the rubber?

Plungers may be leather or rubber. For either, try Brooks Proofide,
beeswax, Sno-Seal, or similar.p

Dale Benjamin said:

I had a Bell composite pump that worked for a couple years before I left it in
the back of my car, then the main tube warped. Still worked, just a little bit
fussy.

Pumps aren't going to last forever, the rubber gasket needs lubrication, and the
lubrication causes deterioration, so if you get three or four years out of one,
that's all she wrote. Some people have got much longer use out of them, depends
on how lucky you are.

Like the other poster said, the rubber parts are going to deteriorate much more
quickly in the trunk, where temperatures can get kind of high.

"John Forrest Tomlinson" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Is there any risk to a floor pump kept in a car in the summer from
high temperatures?

JT

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Remove "remove" to reply
Visit http://www.jt10000.com
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I used to live in the desert. Temperatures got much higher in the driver compartment. I once had a 180F reading in the driver compartment. The plastic interior pannels eventially crumbled in several of my cars. The rubber and plastic parts deteriate. The plastic parts of the pump may get hotter in the driver compartment than the trunk, and they can deteriorate from the heat in the back of the car.

the bike pumps are not industrial, designed as light and saleable to
lite weight people. they wear in normal use-400-500 pumps? with
adequate lube and clean.
leaving a pump in heat drives the lube out, ages the plastics, vinyls
or rubber. so that's x minus 400-500 pumps.
take the seat off if leaving cycle under the sun. bar foam lasts much
longer if covered with a trash bag strap to seat post.
like ted williams' head, everything is better kept cold.