Leo pump info

Just wondered if anyone has any info on this pump?










Googling Leo pumps brings up lots of hits for a Chinese company followed by a few Youtube videos for older pumps that look similar, but with a different "pump end"

The only one I've found on the forum is a Lion Leo, again with a different "pump end"

It's leaking oil from the non-pulley end of the crankshaft, but I'd like a bit of info to save doing any damage dismantling it.

Like most pumps Rob there isn't much out there information wise, I can tell you the "crank" probably isn't and is just an eccentric held on the shaft with a pinch bolt and the shaft is just a length of rod. Bearings are standard open race bearings and there's no seals on them. As for the pump end, never had one like that so can't comment.

Do know they are a nice little pump, Made by Joseph Evans.

http://www.historywebsite.co.uk/Museum/Engineering/Evans/evans20.htm#contents

I have two, a 11/4" and a 13/4" bore versions and I rebuilt both. They were later taken over by Pulsometer pumps of Reading.  Crank is a two piece bolted together with the conrod eye on an eccentric as Rob said, the side bearings don't get a lot of oil and are usually corroded so I replaced mine with sealed ones.  The smaller one in the pic was used for transferring milk, ugh it took some cleaning!



Pete.