I am going to be doing some injector flow testing
in my office at home where I have a lot of test
equipment.

Anybody know of a fluid with about the same viscosity
as gasoline that is non explosive?

Paul Lamar

Hi Paul,
Must be getting old...you're getting conservative: )
You could run a control test on one injector with gasoline.
Then use the
same test parameters with rubbing alcohol and ratio the
results.
Additional injector tests would be done with the alcohol
and apply the
ratio to get the gasoline equivalent.Dave M



In order to attain the status of Old and Conservative, one must
survive
the period of Young and Dumb.I sometimes wonder how I did it.

As to the choice of substitute liquids to substitute for gasoline
which has a viscosityof 0.4 cP to 0.5 cP at room temperature
the following come to mind.

Water 1 cP
Stoddard solvent (Paint Thinner)1 cP
Carbon Tetrachloride0.5 cP

Joel


Thanks Joel.
I think carbon tet might affect the plastic in the fuel pump
and injectors. I think I'll just set up outside of the hangar.
The weather is not that bad out here. Too lean to ignite.

Paul Lamar


Paul,
just put a length of clear tygon hose over the output end of the
injector
and then the hose into a graduated container. The fuel will condense on
the
walls of the tube and help eliminate the potential hazard. Just as a
note, I
was at a fuel injector rebuild shop having injectors matched, and they
even
used gas in their test equipment, so a direct equivalent must be hard to
find.
Larry


Sounds like that will work. Thanks for the tips.

Paul Lamar

Hi Paul,

Mythbusters just did a show where they calibrated orifices for gasoline
using a non-flammable equivalent - so even when only somewhat young,
self-BBQ raises some concerns! Of course, later they used the real
thing to burn down something large. You might give their studio a call
to find out what they used.

Stephen Roth

Good hearing from you Steve. I hope you have recovered
from your crash. Is the US facility  officially closed?
Things have become somewhat incommunicado since Francois
left. We are all rooting for their success up to the
point of paying full pop :)

Thanks for the tip.

Paul Lamar

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