You're, right. Good to have chemical engineer on board.
Viton is a flouroelastomer that will swell in acetone as will Nitrile. But at
concentrations of less than 1/5th of one percent, the effects may be
neglegible.
Maybe use should be limited to long trips where the acetone won't sit in the
tank for extended periods of time.
As Jim Williams said, I'd better check the fuel floats.
A 38% increase in gas mileage is significant enough for me to risk trying it.
Steve
70' 1600
----- Original Message -----
From: jover4x4@aol.com
To: datsun-roadsters@autox.team.net
Sent: Wednesday, September 21, 2005 9:26 AM
Subject: acetone
Typical rubber material for hydrocarbon service is Viton or Nitrile Buna
Rubber. These two materials are not rated for acetone. However, I think in
small concentrations one could get away with it without impending failure of
elastomers. Longevity may be shortened a bit especially on the dynamic
seals..... as in the fuel pump. If it were me I wouldn't trade the small
increase in fuel mileage for the risk of shortened life of fuel related
components. If one were using the Roadster as a daily driver and fuel mileage
was the primary concern it could be worthwhile????
Just my thoughts.
John Over
Jemco Seal Corp.
www.wycroc.com
Stephen:
You probably are aware of this, but acetone is a powerful solvent. It
softens most plastic parts, including fiberglass. Be careful as it will cut
trhrough the insides of most fuel lines and clog the carbs easily. Most
plastic parts will be disolved away by acetone, or get hard and crack. i would
keep an eye on any plastic/rubber fuel lines, the plactic carb spacers. The
float in the gas tank, and the diaphram in the fuel pump.
Jim Williams
68-2000
Scottsdale, AZ
jamesd_williams@yahoo.com
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