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

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Well Nick, you are most certainly off to one hell of a start!

NICE!!!

Nice challenge Nick, you sure you have enough steam items to fill the quota. 😉😁

I don’t know as I’ve just realized it’s a leap year! Might have to take the 29th of February off…

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Day 3: Jensen 85 - This is unfired and was given to employees of Marlborough Sheet Metal & Design Ltd in Calgary, Alberta. It may look like the ends of the boiler are flared out in the picture… they are, I have never seen it this bad in an 85 but I can only assume the end caps were too large… Another funny thing is the paper gasket jammed under the boiler strap. I don’t know if this was accidental at the factory or wedged under there because the boiler strap wasn’t tight enough… it can stay for now since I won’t be firing the engine. I also didn’t have any NOS burners easily accessible today, so I stuck a Dean Williams homemade alcohol burner in for the picture. I was able to get a very close paint match using Rustoleum textured paint.

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That certainly is an odd duck, the flared ends I've never seen before. the paper Gasket is completely original, I have had several 85's with that Gasket.

I think the flared ends on that boiler speaks to the split cylinder issue that we sometimes see with Jensens. Which is to say that the press is mightier than the elastic modulus of the material, such that ramming a slightly oversize endcap into the end of the slightly undersized cylinder C-bore, stresses the walls of the cylinder. Later, under thermodynamic load that stress becomes telling .... or so I think?!?!

Not too sure I'd have ever let a boiler looking like that out of the shop. In fact, I'm sure that I would not have let it out, but I suppose that is just my years in QA talking.