Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Good news today.

The pumping engine is now free and turns smooth as silk.!!

After 5 days of WD-40 soaking in and another 5 days of PB Blaster soaking in I used a brass pin and a lightweight hammer to tap the pistons a little. 

Then I put a perfectly sized very smooth 3/8" open end wrench on the crank arms and gently worked it loose.
Once I was able to get a little movement, the rest came easy!

Gil