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Thread: Drum pumps

  1. #1
    Join Date
    Apr 2006
    Location
    New Zealand
    Posts
    621

    Drum pumps


    Am just wondering if anyone has found a solution to drum pumps losing their prime? The issue is worse when the drum level is low and when there has been some considerable time without use. I have resorted to removing the pump, up-ending it and pouring oil into the stem. Other times I have been able to reverse pump oil into the vanes. Often it's a bit messy so was looking for a better remedy.
    Thanks

  2. #2
    Join Date
    Jun 2008
    Location
    whyalla sth. aust
    Posts
    224

    Re: Drum pumps

    I have one of those in the photo only used it half a dozen times I got sick of the amount of turns it took to pump oil it maintained prime but only moved like 20l min and it took too many turns of the handle, resorted to 12v gear pump. I have seen in the AIS catalogue a lubemate pump at100l min for $199 they are made by mcnaught

  3. #3
    Join Date
    Apr 2006
    Location
    New Zealand
    Posts
    621

    Re: Drum pumps

    Quote Originally Posted by gilfish View Post
    I got sick of the amount of turns it took to pump oil
    Yes, they keep you fit! Good exercise some would say. The way I have my set up, it's rare that I move more than 60L at a time and that's to fill the van up. I might think different if I had to pump a whole 200L at one time though.

    One of my pumps stopped working so I took it apart to find a piece of cable tie had "attached" itself to one of the vanes. Easy fix but not what I expected to see.

    Another one I picked up without a handle so I made one. The mistake was to make it longer than it should have been. One day I'm promising myself to fix it properly and with a handgrip part that's a bit more user friendly.

  4. #4
    Join Date
    Dec 2008
    Location
    brisbane
    Posts
    331

    Re: Drum pumps

    I have used a pump similar to the one pictured for many years without a problem. I have removed the handle and fitted an adapter to enable it to be powered by a battery drill. It will move 200l. in around 7 minutes on low speed.

  5. #5
    Join Date
    Dec 2006
    Location
    Townsville, North Queensland
    Posts
    621

    Re: Drum pumps

    I had a pump like that. Came from Supa Creap. It was very hard to get to prime. I ripped the side off it to discover a large hole in the casting of the rotor and it happened to be right under the seal by the handle.
    Some metal filler and a careful filing down fixed it. After that it would prime with only a few turns of the handle.

    Not sure where it was made but looking at the quality of tha casting work, I wouldn't like to buy a car made in the same country.

  6. #6
    Join Date
    Sep 2009
    Location
    Brisbane (North Side)
    Posts
    714

    Re: Drum pumps

    I have been using one zacchary same for years to collect oil. started to leak, but I fixed that with some home made seals etc. mine hasnt missed a beat. occasionally gets jammed with a fish frame or two, but for the most part no problems at all. dunno how many thousands of litres its collected, maybe 10-15 thousand? Once the pipe slipped off the spout, which made a hell of a mess. apart from that all good.
    Regards,

    Cade.

    2006 Landcruiser HDJ100 (1HD-FTE) 20,000 on bio
    2006 Ford Courier(WLT Motor), 10,000 on bio
    2002 Landcruiser HZJ105r (1HZ motor) 250,000 on bio (sold)
    2006 Mazda B2500 (WLT motor) 80,000 on bio (sold)



  7. #7
    Join Date
    Feb 2007
    Location
    sydney
    Posts
    239

    Re: Drum pumps

    I've been using rotary pumps like the one pictured for a few years now.

    have two in constant use and yeah it burns some calories but i only pump about 15lt at a time so i just see it as some light exercise.

    i've had no issues with priming whatsoever. just the occasional small drips from the shaft seal.

    Laurie

  8. #8
    Join Date
    Apr 2006
    Location
    New Zealand
    Posts
    621

    Re: Drum pumps

    Thanks for the ideas and thoughts.

    My 2 currently in use also drip from the shaft. The thought here was to get new viton seals, presumably these are o-rings. However after 10years of ownership these are just the same and I've not so much as looked at the seal.

    A couple of ideas on improving the ability to keep the prime. Firstly I thought I could install a tee on the outlet with a blanking plug. Oil could be poured in there with minimal fuss and restore the prime without removal or spillage. Another thought was to install a grease nipple and give a few shots if the pump failed to lift the fuel. A third approach was to turn the pump at high speed with a power drill.

    None of the ideas really appeal and these don't cause enough grief to warrant another job to do. We'll see. The next time this happens I may spit the dummy and rush the offending pump into the shed and braze on a socket to the outlet..... Take that!!
    Last edited by tbird650; 21st November 2012 at 07:19 AM. Reason: spelling

  9. #9
    Join Date
    Sep 2009
    Location
    Brisbane (North Side)
    Posts
    714

    Re: Drum pumps

    If its loosing its prime its leaking. My money is on the shaft seal. simply replace that and tighten all bolts and I dont think you'll have a problem.

    I just remembered that mine totally jammed once. I pulled the housing apart and wire brushed everything clean. was gummed up with varnish and residue. I dont think it even had a gasket between the housing parts. Made a new gasket out of gasket paper and replaced the shaft seal. I even ground / filed a few casting dags off the inside of the pump. pumps like a charm now and primes no probs. There is no doubt it was a low quality build with cheap components. A bit of TLC though and works really well. A lot cheaper option than an expensive McNought.
    Regards,

    Cade.

    2006 Landcruiser HDJ100 (1HD-FTE) 20,000 on bio
    2006 Ford Courier(WLT Motor), 10,000 on bio
    2002 Landcruiser HZJ105r (1HZ motor) 250,000 on bio (sold)
    2006 Mazda B2500 (WLT motor) 80,000 on bio (sold)



  10. #10
    Join Date
    Apr 2006
    Location
    New Zealand
    Posts
    621

    Re: Drum pumps

    Ok, so the inevitable finally happened. The drum pump misbehaved again and got a socket welded on to its' gooseneck. Now I can manually pour in a small amount of oil through the bung. It works well and beats having to remove said pump, up-end it on its' ear and tip oil down the long tube. While the 'up-end' method worked, it often got messy and all too often I got oil on me.



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