I acquired an old 1960 era WS Darley portable fire pump. The pump is on the PTO end of the engine shaft (Briggs & Stratton model 23A). I'm wanting to remove/separate the pump from the engine, so I can feel free to test run the engine (without having to worry about running the pump while it's dry) during my attempts to get the engine into good operating condition before eventually reinstalling the pump and actually using it to pump water. I've removed the pump casing so far, but am unclear how I'd probably proceed to remove/separate the pump from the engine shaft. I've checked with the Darley company already and they say they don't have any assembly/disassembly drawings/diagrams or such for the old model pump. I'm hoping I might get some guidance/advice from forum members here in that regard.
Here's a picture of the pump, still with its casing, on the engine.
I removed the four bolts (pointing to one of them in the picture below) that holds the pump coupling to the engine. With those removed, the coupling will turn easily but of course does not pull out/away from the engine:
I removed the pump casing (as seen below) which exposes pump business inside:
Below is a couple shots of it:
I'm guessing to get the pump off I'll be needing to remove this nut (shown below) somehow first. But again, that's just my guess. If I do need to remove this nut, I don't know how I'd go about it. It's got those lock metal pieces all around through it. I don't know what those are or how to get to them to remove them. Any comments appreciated.
Here's a picture of the pump, still with its casing, on the engine.
I removed the four bolts (pointing to one of them in the picture below) that holds the pump coupling to the engine. With those removed, the coupling will turn easily but of course does not pull out/away from the engine:
I removed the pump casing (as seen below) which exposes pump business inside:
Below is a couple shots of it:
I'm guessing to get the pump off I'll be needing to remove this nut (shown below) somehow first. But again, that's just my guess. If I do need to remove this nut, I don't know how I'd go about it. It's got those lock metal pieces all around through it. I don't know what those are or how to get to them to remove them. Any comments appreciated.