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Saturday, February 10, 2018

Fuel surge tank with internal pump


tank from Ebay 5x5x12 with six #8ORB bungs and fittings, it is just less than .100" thick aluminum. Installed a Walbro 450LPH pump inside.
top cut off
5x5x.5 aluminum with 4.00 hole to weld in top
5x5x.75 aluminium for pump and fittings mount
Used a Champion J99 industrial spark plug for a electrical pass thru.
 Bulkhead fitting with o ring for the pump discharge

          lid seals with o ring

 Changed to a different electrical pass thru when the first attempt of using a burner electrode failed. This one is 1/4 steel all thread with a washer brazed on. Delrin bushings and an O ring seal.

Powermaster booster pump repair

Replace vanes, rotor and cam ring. This pump would run but made no pressure
pump parts come out the end after ring is removed
         Drilled a hole to get at an end of the wire ring
        wear plates, cam ring, and outlet only fit one way as they are keyed or pinned
       Vanes had worn enough that one got out and no pumping happened.
          going back together

Sometimes the wire snap ring can be reused, We used a snap ring on this one with some machine work