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HelicopterTools and Field Equipment › Electric fuel pump
12-02-2011 04:06 AM  5 years agoPost 1
mustang67ford

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Central Pennsylvania

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Anybody have a hobbico mkIII fuel pump and is it any good? I have an older fuel pump now that's electric an have a heck of a time getting it to prime. It like there isin't enough power to get the fuel up to and thru the pump. My pump is higher than the fuel jug. Sullivan also has a pump which is a little faster than the hobbico unit.

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12-02-2011 04:30 AM  5 years agoPost 2
lfalsetto

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COLORADO

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I have heard of people using some type of automotive pump that worked good. I think it was a wiper washer pump.

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12-30-2011 02:39 AM  5 years agoPost 3
thtoyman

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Gone ,Flying.

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Wiper washer pump will only work a few time. The nitro eat them

Save your money and buy one make for it

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01-13-2012 05:56 AM  5 years agoPost 4
Chief_USN

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Chesapeake, VA

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I had a Hobbico MKIII for the longest time. I just recently replaced it with the Sullivan. Your priming issue might be that on the inside of the pump is two plastic disks that marry up to each other. One has two pegs and the other has a raised area. the two pegs meet up with the raised area when the motor turns, in turn spinning the pump gears. If one of those disks are slipping on the shafts they are attached to, you will not get a good pump action. Take the pump apart and check those disks. If one is slipping, seperate it from the shaft and sand down a flat spot on the shaft. Then apply some JB Weld and reattach the disk. Mine did this right after I bought it years ago and after repairing it, it worked great until the pump gears wore out. Hope this makes sense. If not, take your pump apart and it will. Good Luck. Oh, By the way, the Sullivan pump is faster and quieter than the MKIII.

Chad

Team HeliProz 12-14
US Navy Chiefs...Unity, Service, & Navigation to the Fleet since 1893

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01-13-2012 12:46 PM  5 years agoPost 5
KevinB

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Saskatoon, Saskatchewan, Canada

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I don't know what "Mk" # they were, but I've had a few hobbico fuel pumps over the years. I don't know if it's the 30% nitro, but the last 2 I've owned both started leaking fuel by their 2nd year of use. I'm curently using a hand crank hobbico and after 1 year, that one is still ok. I would have tried the Sullivan but my local hobby store was out of stock when I needed a pump.

KevinB

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