Greetings from this side of the pond.
I struggled for a while to add a boiler feed system to my "Greyhounds Revenge"
I covered the initial build and the subsequent build of her Stuart D10 plant previously.
After playing with a number of options:1. Building the Stuart Feed pump for the D10,
2. Fitting a different engine driven pump,3. adding an electrical driver pump,
I ended up using #3.
Why? - well first of all I did not have the room for the Stuart Pump right off the front of the engine.and then I tried to come up with a chain driven pump off the side.
Then I looked at pump housings I had to work with.
I picked a pump that came with a Maccsteam Boiler I got from "Myford Lathes" and added the eccentricdrive from a smaller microcosm pump for a smaller twin cylinder engine (in another boat). I found that the
check-valve on the boiler was missing a ball-bearing, so I added a check valve i got from Jin.
Then I got a small 100 RPM Gearhead motor from Polulu in Las Vegas Nev. and added one of their
servo switches, packaged everything together and built a box to hide it all in.
I used a 4-cell NIMH pack, with an LED and a charger connection. The led will let me know it is running.
The result -
SUCCESS!
The twin tanks on the side of the engine hold enough water to refill the boiler from low-sight-glass to high-sight-glass.and the run time has doubled. From 22 min to 45 min.
The displacement lubricator had just a little oil left, so lucked out on that point.
So here are some pictures.
Regards to all,Jim PopeDenver,COUSA