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#pump

2 posts1 participant0 posts today
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Y⃒̸̷̝̜̙ͥͥͥngmar

Getting the broken bolt out took ages. Steel in aluminium gets stuck real good. My usual tricks failed and I had to drill it out. At least it wasn't stainless steel. Then some recutting of mangled threads and finding a replacement bolt.

Not done, but meanwhile I threw some phophoric acid on the steel parts.

The same pump as before, now with the parts stripped of paint, burrs filed down, rust brushed/sanded off and slowly turning black from phoshporic acid. The leather seal around the piston is seated correctly again. Everything except the cylinder looks relatively shiny.
#DIY#Repair#Restoration
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Y⃒̸̷̝̜̙ͥͥͥngmar

Fixing up this diesel hand pump I found in the garage/barn a while ago.

The leather seal around the piston was slipped out of place, but it was fixable - hope it'll stay in place. Apart from that, just one bolt broke and some rust, mostly on the outside, as the fuel inside had preserved it.

The aluminium parts are a really bad sand casting job, but it should hold anyways. May need some metal epoxy putty.

Cleaning up the parts now. Then test before painting.

A fuel hand pump made of steel and aluminium with some chipped of dark green paint on it. It has a crank arm but the handle is missing. There's a curved spout and a rotating drip catcher that can be slotted together when not in use. The bottom has various size threads for screwing into a barrel or other container. The intake tube protrudes out of the bottom. The pump housing is clamped together by four long rods. At the very top is a calibration screw that can be locked with a tamper-evident wire.
The same pump, now taken apart with the parts spread out on a table. Small screws and parts are in a plastic yoghurt cup. The parts not visible before include the piston with a toothed bar (a rack) and a sprocked removed from the lever shaft, revealing a key. The top and bottom fitting are aluminium, nwo with the pipes removed.
The piston, now cleaned up and the leather seal reseated and clamped into place. A spring holds the a flapper plate shut. It's sitting on piece of scrap PVC floor.
The cylinder, inside partially cleaned up, somewhat rusty but mostly just dirty from brushed off rust and debris. The sun reflects on shiny brushed metal.
#DIY#Restoration#Pump
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