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

That is a tough nut to crack.

  Unfortunately, Jensen has no replacements at this time.  You may
have to buy one in worse shape but with a cylinder/piston/rod assembly. 

  I bought a 1951 Jensen #10 with a rough but working boiler.  Then, I bought
a #5 with a good boiler, swapped the boilers, and sold the donor on ebay.
If you part the donor out you may get most of your $$$'s back.  Someone is
always looking for a whistle, S/V, sightglass assembly, and whatever else
can be detached.

Good Luck,
Wayne