Fish
Tree Freak
OK PHYSICS majors!!!!!
What is the boiling point of fuels/gasoline/gasahol??????
What is the boiling point of fuels/gasoline/gasahol??????
OK PHYSICS majors!!!!!
What is the boiling point of fuels/gasoline/gasahol??????
Yes, I imagine that would influence it. The greater the atmospheric pressure above any liquid, the higher its boiling point and vise versa. Note that water boils at only 180 F or so at high altitude. And, pressure cookers cook food faster.But that would depend on the "pressure" in the tank, correct????
I try to learn something new every day ...
I like Lone Wolf's idea of using two saws and have done this myself. But that doesn't explain why I never have to switch off to another saw when I'm using my Mac 10-10 .... ? Using the same fuel mix ...
I'll add to the discussion .... a week ago after some stumping, I went to refill the bar oil and vapor came out of that tank. THAT'S hot ..... :msp_scared:
I run them a bit fat and they get some idle time which seems to help!!!
The emptier a tank gets, the less fluid is in the tank, therefore more air... Air expands with heat creating pressure...
Fluid? Not so much... Yes cutting in this heat is just inconvenient at times, but that's why I take 2 saws. My larger saws seem to have less issues with the heat also... I run them a bit fat and they get some idle time which seems to help, but I got a 520 makita that just don't like 100 degree days... But it's gonna get used to it or die tryin!!!
Is the 10-10 fuel tank design different than your other saws?
When I'm stumping on a hot day, and someone is with me, I'll have them feed air to the saw with a handheld blower.
I do that with all my OPE that still has a throttle. My thinking is its like the cool down lap that you see at the race tracks. Thats one reason I never liked these new push mowers that don't have a throttle. You can't let them cool down.
I did a little googling...
Ethanol boils at 78.37C (173.1° F), octane (pure) at 125C (257° F) (there's n-Octane and iso-Octane and they differ a bit, so I think this value is something of an average.) For MTBE (on its way out) it's 55.2C (131 °F). TAME is 86.3C (187 °F), and so on.
I had the same problem last year, i found that the tank vent in the tank cap eas pluged in the cap with dirt. In the old days this was called a vacume lock which would over presure the tank and seem to spray or boil the gas out of the tank. So get a small wire to clean out the vent hole or buy a new cap.
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