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METHANOL HYDROMETER KIT #3072
Kit Includes:
Instruction Sheet with methanol temperature specific gravity correction chart.
500-ml polymethylpentene hydrometer jar.
Laboratory grade stainless steel 25 - 125 degree F thermometer with beaker clip.
Precision .760 - .830 range specific gravity hydrometer with 0.0005 divisions.
CAUTION:
The hygrometer is made of glass and is very fragile! Treat with care!
This kit, when utilized properly, can help determine the suitability of methanol (methly alcohol) race fuel.
The specific gravity of methanol race fuel should be .7954 at 60 degrees F. Methanol is hygroscopic
(absorbs water), and as the fuel absorbs moisture from its surroundings the specific gravity of the fuel will
increase (higher specific gravity). As this increase occurs there is a change in the fuel’s combustion
properties that will result in a decrease in the power potential of the fuel. Just how much of an increase in
specific gravity is too much is often up for debate; many top crew chiefs won’t use fuel that isn’t exactly on
specific gravity. Consult with you fuel supplier for further information about this.
It is important to note that verifying the specific gravity of the fuel will not necessarily prove that the fuel has
not been “doctored” with some other additive. It is best to buy you fuel from a reliable source, and store it in
tightly sealed containers, in a cool, dry place.
DIRECTIONS:
1.
Fill the hydrometer jar 3/4 full with the fuel specimen to be tested. Place the jar on a level surface to
conduct the test. Do not attempt to hold the jar in your hands to conduct the test, as inaccurate results will
likely occur.
2.
Insert the thermometer probe into the fuel sample. There is a beaker clip with the thermometer to
properly hold the thermometer in place during the temperature measurement process. Caution! Do not
immerse the gauge portion of the thermometer in the fuel. Allow the thermometer to stay in the fuel until the
temperature reading stabilizes. Once the temperature reading has stabilized, record the temperature for
future reference and remove the thermometer from the hydrometer jar.
3.
Carefully remove the hydrometer from its container and insert it into the hydrometer jar. The
hydrometer should float freely within the jar. If the hydrometer falls to the bottom of the jar and does not
float there is probably not an adequate amount of fuel in the jar. If this occurs, add additional fuel and start
the entire procedure over again.
