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Melling oil pump issue

Discussion in 'The Hokey Ass Message Board' started by ganga, Jan 9, 2011.

  1. ganga
    Joined: Dec 27, 2008
    Posts: 152


    I just had the pickup tube welded to my pump.......Brain fade set in and I left the spring in. I want to replace the spring with the same one....stock Melling M-55. Does anyone know the part number??
  2. luckyuhaul
    Joined: Jul 11, 2005
    Posts: 182


    Melling has a website , but how did you weld a tube to cast-iron?:confused:
  3. ganga
    Joined: Dec 27, 2008
    Posts: 152


    Tig with a high silicone wire
  4. Ole don
    Joined: Dec 16, 2005
    Posts: 2,915

    Ole don

    Braze it. Works good. Take the spring out first, then shim it for more pressure if you think it needs it. Most dont.

  5. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 6,682


    Most of those pumps come with another spring to change it to high pressure if needed. Why not just find a spring someone did'nt use? Even I have one in the gasket drawer. Butch/56sedandelivery.
  6. We always just removed the topcover and drilled a small hole and tapped threads for a setscrew,,then loctite into place,,never had one fail.

  7. Careful with the shimming of the spring trick. Some of the melling pumps have a longer bypass valve and the bypass won't open. You'll blow the filter right off onto the concrete >>>>.

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