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Item 709005
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Reviewed by 2 customers
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Comments about MSR Dragonfly Fuel Pump:
I like that this can be left on the MSR fuel bottle when transporting. When releasing pressure after use it tends to "spit" fuel on your hands as it releases the pressure which is kind of a pain. I had trouble getting the pump to stay closed when using the stove but it did not seem to affect the performance of the stove.
Pros
Cons
Best Uses
Comments about MSR Dragonfly Fuel Pump:
I love reading the complaints, and not to be disparaging, sometimes I find them humorous. Whenever I do read about one of the MSR pumps failing, it's easy to read between the lines and see in all probability what went wrong.
To avoid field problems with these sorts of pumps, simple steps must be taken to ensure their reliability. Follow these steps, and you will find your outdoor experience to be always enjoyable.
First and foremost, lubricate the pump body frequently by coating with either Vaseline, mineral oil or even wd40. Since fuels have corrosive characteristics, They will leach the resin (over a short period of time) out of the co polymer compound causing embrittlement and slight warping of the body itself.
You need not worry about introducing effluent into the fuel source since the ppm (parts per million) is so insignificant as to be not worth worrying about.
Next understand that any rubber o ring used in the construct of the
pump requires changing annually. Once more the reason is corrosion and degradation of the o - ring compound. Replacing annually will eliminate the
leakage problem.
Next MSR instruction(s) performs a disservice to the instruction reader: When the pump is not in use, Release the compressed air in the fuel canister since the back pressure serves to destroy over time the pump. Especially when the canister and pump are subjected to elevation changes. Going up into the mountains
Once you have released the air pressure, open the valve to allow the trapped fuel within the chamber of the pump to flow back into the canister. This is simply done by holding the pump upwards above the fuel line within the canister.
The serves to deny the interior of the chamber corrosive liquid. NEXT do not leave the pump inserted into the canister when not in use. The weekend is okay, long term is assured destruction of pump and the o rings.
Lastly a fuel pump, a bicycle pump does not make. If you haul off and pump furiously on the little darling, it's going to break real fast.
Lastly, coat the threads of the pump with a heavy coat of vaselline. Do not over tighten the threads. This will ensure a reliable and long term experience with the
Ump.
Let's examine if what I say is reality. I own a 25 year old MSR Firefly stove which is the fore runner of the current dragonfly. The pump still works fine and is reliable.
I own an MSR Dragonfly, the pump is at least six years old and is reliable.
In life, you reap what you sew. Regardless, even if the pump fails, simply get another. There isn't another stove system around that is as good as either the Dragonfly or the XGK EX.
That's the bottom line. And what's so humorous about the complaints? All fail to recognize self failure and place the blame on the device and not the owner of the device.
Who's running the Circus???
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