Aerostich mini pump hot mess

Discussion in 'Equipment' started by brianbrannon, Jul 9, 2018.

  1. brianbrannon

    brianbrannon They'll ride up with wear

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    It worked good for two years airing up a big KTM until in 90 degree weather the plastic piston in the compressor melted. I repaired it with a new o-ring and JB weld, not really counting on it lasting. It is smaller and lighter than the all metal ones, ymmv
    #1
  2. Tall Man

    Tall Man Priest, Temple of Syrinx

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    Apt thread title.

    I have the same pump, and they do indeed get quite warm during prolonged running...which the instruction document does warn against.
    #2
  3. Graniteone

    Graniteone 3,2,1...Beer me!

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    If this is the pump you are referring to, it has saved my bacon multiple times and keeps on chugging.http://www.aerostich.com/aerostich-mini-compressor.html The key is to not run it for super long without a break and keep it clean. For the record I keep two co2 canisters handy or a hand pump depending on the trip for the time when the mini compressor may fail.
    #3
  4. squish

    squish Out of the office.

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    I've been using de box mini inflators for a long time.

    The tricks I heard early on
    Do not run them for a long time (there's virtually zero duty cycle for these things, before they overheat)
    Do not run them on the ground. I use a mini biner and a length of para cord and hang mine off the handle bar or rack
    Keep the air intake out of the dust.
    Maintain a long strain relief section of the electrical plugs
    #4
  5. lkraus

    lkraus Been here awhile

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    My Slime pump instructions specifically say NOT to run the engine while pumping. Increased voltage = higher motor speeds = higher temperatures.
    #5
  6. squish

    squish Out of the office.

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    I suspect that those instructions are for a car, and a larger car battery.
    On a motorcycle, with it's tiny battery and the typically marginal charging systems. you could run down your battery right quick filling up a tire while not running the engine.
    #6
  7. brianbrannon

    brianbrannon They'll ride up with wear

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    I wouldn't consider the time to air up a back tire "super long". The Aerostich pump with a metal piston would be ideal
    #7
  8. Exurban

    Exurban Been here awhile

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    Battery size has nothing to do with it. Sounds like that pump motor does not like the higher voltages from an alternator- bike or car. Interesting that pump looks like the guts that others end up with when they strip down off the shelf compressors, only Aerostich charges a premium for it.

    For comparison, the Motopump can run for as long as you need without overheating and you can run it with or without the engine running. They point out, as a positive thing, if the engine is running, it will pump and fill your tires faster.
    #8
    davidji likes this.
  9. Manrider218

    Manrider218 Adventurer

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    +1
    [​IMG]
    #9
  10. brianbrannon

    brianbrannon They'll ride up with wear

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    And the Motopump is also the guts stripped out and a premium charged
    #10
  11. squish

    squish Out of the office.

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    Yeah, battery size does have something to do with it.
    See a motorcycle battery like a YTX14BS, common larger batter for bigger bikes.
    It's a 12Amp Hour Battery.
    Where a car battery
    Say a group 24, fairly common battery
    They have about 50amps.

    A motorcycle battery has less then half the amp hour rating vs the automobile battery
    #11
  12. Exurban

    Exurban Been here awhile

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    I’m well aware of battery capacity but, I reread your previous post where you suggested the instructions were intended for cars. You might be right depending which pump lkraus has. I have a small Slime pump for bikes and can’t find that language. However, he commented that
    I’m suggesting a “larger car battery” doesn’t enter into his rationale for not running the engine. I’d have to look at some specs but I don’t think alternator voltages vary all that much between bikes and cars. 13.8-14.2 more or less. So I don’t know why the instructions for his particular pump would warn against running the engine. It might be some lawyer thing and nothing to do with electrons.
    #12
  13. Johnny4x4

    Johnny4x4 Hope 2 B Cool Sumday

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    I would suggest switching to a Moto pumps Air shot.

    I put one on each bike, and have used it to top off my the tires in my excursion a few times. I have run it for about 20 minutes straight on the truck tires, never a problem.

    around the same price as the Aero stich, also comes in a bag, and I think a better connection on the valve stem.

    Just my $0.02.
    #13
  14. brianbrannon

    brianbrannon They'll ride up with wear

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    Anything with a case is too big to fit under my seat
    #14
  15. Wonger20

    Wonger20 Adventurer

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    So scrap the bag or use it for something else? I don't understand why that is relevant if the pump fits and zero pumps with a case fit.
    #15
  16. brianbrannon

    brianbrannon They'll ride up with wear

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    It is relevant because he recommended the Motopump Air Shot and that pump has a case that makes it too big. What is not relevant is your suggestion to "scrap the bag"
    #16