Hand pump rebuild.

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The_Yellow_Ardvark

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The slow, ongoing transfer of past projects onto a external hard drive goes on.
Resulting in finding nice rebuilds.

This 1/3 turn Hand pump would of been installed into a permanent Civil defense bunker in the Cold War.

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This one was in poor condition.

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Testament of the amount of heat needed.

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The Grave yard.



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The rust was removed with Citric acid.
The Gasket faces polished on sheet glass and grinding paste.


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Shaft and flapper valves fitted.


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Original handle saved and fitted.

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Fitted to a bit of scrap wood, now fully working.
 
Generally known as a "semi rotary hand pump"
Were quite common - we had one over a well in Wales.
Clever mechanism, and a compact design.
 
Ha! Funnily enough I've got one of these over my well here in Wales. :giggle: I was looking into refurbishing it. Apparently you can still buy them new but they are now made in India. Some have bronze bodies, I believe, for use with sea-water.
 
The slow, ongoing transfer of past projects onto a external hard drive goes on.
Resulting in finding nice rebuilds.

This 1/3 turn Hand pump would of been installed into a permanent Civil defense bunker in the Cold War.

View attachment 173361

This one was in poor condition.

View attachment 173362

Testament of the amount of heat needed.

View attachment 173363


View attachment 173364

The Grave yard.



View attachment 173365

The rust was removed with Citric acid.
The Gasket faces polished on sheet glass and grinding paste.


View attachment 173367

Shaft and flapper valves fitted.


View attachment 173368

Original handle saved and fitted.

View attachment 173369


Fitted to a bit of scrap wood, now fully working.
The only problem with the flanges is that they are flat faced and can sometimes leak. I suggest a thin smear of jointing paste on the surface inside the bolt holes to ensure a good seal. Perhaps you already do this.
Regards,
Dave
 
The only problem with the flanges is that they are flat faced and can sometimes leak. I suggest a thin smear of jointing paste on the surface inside the bolt holes to ensure a good seal. Perhaps you already do this.
Regards,
Dave
They should be fitted with a grease paper gasket.
 
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