Oil in tubes

for most tube materials, yes. oil vaporizes under heat and
pressure, the effect of pumping, especially as pressures
climb, and oil could carry to the tube. it /will/ ruin your
tubes if it gets in.

will you notice the effect for a one-off? no. if you use oil
consistently over time? probably. i'd stick to a thick
grease - less volatility.

Joe Riel said:

I have been told that motor oil is a convenient
lubrication for the leather gasket of a Silca floor point.
Is there a problem with minute amounts of oil being
injected into the tubes?

Joe Riel

[email hidden] (Joe Riel) wrote in message news:<[email hidden]>...

Quoted message said:

I have been told that motor oil is a convenient
lubrication for the leather gasket of a Silca floor point.
Is there a problem with minute amounts of oil being
injected into the tubes?

Joe Riel

Dear Joe,

There seems to be some doubt about oil, but three posts from
a thread from last year follow.

Carl Fogel

From: A Muzi ([email hidden]) Subject: Re: silca floor
pump Newsgroups: rec.bicycles.tech Date: 2003-07-20
19:13:02 PST

"Joseph S." <[email hidden]> wrote in message

Quoted message said:

my silca super pista floor pump ( about 5 yrs. old ) has
become difficult on the up stroke. it feels like it's clog
wherever it pulls air from but I can't figure out where
that is. I removed cleaned and lubricated what looked like
a check valve but that didn't help. Can you help. Thanks.

Pull out the piston and clean it, then work in some leather
moisturizing product, whatever you have handy (neatsfoot
oil, Proofhide, etc). Jobst says machine oil, which would
prbably work too.

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

From: Phil Brown ([email hidden])
Subject: Re: silca floor pump
Newsgroups: rec.bicycles.tech
Date: 2003-07-20 21:04:00 PST

I use grease. I've always thought that there was a chance of the oil droplets
getting into the tube and rotting it, but then again I date from the days of
latex tubes.
Phil Brown

silicones such as phil wood lube or prestone spray silicone
tend to not screw up various materials. wood works well in a
road morph giving a satisfying thwack thwack with extra ease
in reaching the requirted pressure.

motor oil does have detergents( well, that's what THEY say
or claim)and the detergents well, the detergents detergent.
Deteregent motor oil burn off and residue. Or so THEY claim.

Motor oils not heated to near boiling accumulate water
sometimes under the oil next to the steel surfaces.

whatareyastupidorwhat?

Joe Riel said:

I have been told that motor oil is a convenient
lubrication for the leather gasket of a Silca floor point.
Is there a problem with minute amounts of oil being
injected into the tubes?

I've always used 30w motor oil on my pumps, Silca frame
pumps and floor pumps, both of which use the same Silca
leather. This practice has never caused a problem or defect
in a light weight latex tube or a butyl tube so I think the
answer is that it does not affect the integrity of tubes.
Besides which, tubes don't last forever due to punctures, so
they get replaced in a few thousand miles.

Jobst Brandt [email hidden]

defined as a lubricant, oil wether motor or machine has the
properties of an organic solvent. silicone is not an organic
solvent. but one must excercise cawtion as some silicones
are carried in water. i assume P.Wood's is not.what finish
line is doing with the teflon?? what is in motor oil(or
machine oil) is a matter of trust in advertising.

i have a fingerprint test: rub the oil between the (CLEAN
FINGERS!!) feel your print's edges? try that after 1000
miles with different brands. a master mechanic friend in a
cold clime sez this is not exactly useful tending to the
ring drag=ring wear but clodme tends to believe lower piston
speeds are...

NOTE: leather and human skin are organic materials.

the specific water resistant aspects of silicone and water
elude me tho wood does mention that wood lube is water
resistant or relatively water insoluble or.. whereas water
and oil "spills" in the atlantic generally dissapate over
time. i don't remember hava-lien claiming anything about
water resistance.