[MLC] New axle driven water pumps for Forney #2

Posted by Gerd on Tuesday, 11 June 2019

Hello friends of the large steamers,

since the last bigger maintenance 3 years ago, I had issues with the boiler water feed systems on the Forney, so the loco was not in service for the past two years, resting on the dead track.

But a few weeks ago, I suddenly took the loco on my workbench and started to assemble the loco down to the frame.

As the original pump got lost, I simply build a whole new one. First I had to add new eccentric rings to the second axle. This needs to me to remove the whole axle. Finally everything was much easier than expected.

The parts for the pump were made from stock brass on the mill and lathe. The single parts for the pump body were soldered to a single unit. I use a high temperature soft solder which is strong enough for such tasks.

To have easy access for maintenance, the pump is hold in place by a single screw. Once loose, I can take the pump out of the frame to the cutout section in the bottom of the former water tank. Last task was to rebuild all necessary water pipes for the axle pump including the bypass back to the tender tank.

The first test run at home was very successful.

So next I headed for a local club layout on June 2nd for a long-term test run. The loco performed great for more than 5 hours and is now back in full operational condition. This makes me really proud, as the loco is already 36 years old, but still not tired.

Originally, I planed to rebuild the Forney for 1:7.2 scale as well as I did with my other rolling stock recently. But in the end, I can’t get warm with the 1:7.2 proportions on this loco. So I decided to keep here in 1:6 scale for the moment and gave her on loan to a sugar cane railroad.

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