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Nick

Jensen 40

I started at 55 volts, and worked my way down to 47. This kept the engine at a nice "tick-over" for about 30 mins, when I pulled the plug. When I emptied the boiler, it seemed like there was just as much water as when I started.

Enjoy...

http://www.youtube.com/watch?v=vyXfuzpkRSE

silverfoxsteam

Hey that was nice - lovely healthy, clunky sound and a great loooking engine.

Was the rheostat (is that what you call it?) supplied with the engine or did you add it. It seems just what I might need for a bit of control over the heater in my Wilesco D22!
John Chapman

That's very nice Nick and a bit unusual.  Ticks over very well.
Spokesmann

Very different, what year is that model?
Nick

Spokesmann wrote:
Very different, what year is that model?

Mike, I really don't know a whole lot about the engine, so I'll give you the information taken right from the Jensen website:

Quote:
The Model #40 " is a relatively rare Jensen, which was first produced from 1960 until 1965 when it was phased out of the product line. It had a distinctive vertical bolier with no smokestack and the cast iron motor from the older Model #5.


From what I understand, the heater was difficult or expensive to make, so there were very few vertical boilered Jensens.

In the ebay description, the seller said the engine belonged to his father (a teacher) who used it in the classroom. I am surprised it survived in this nice of shape, with only a chip taken out of the plywood base.

Here is my model 5 (same engine, different boiler):

Spokesmann

Interesting indeed, vertical boilered engines are quite nice, its unusual that its not a German engine, English verticals are not common, other than Wormar and Burnac and Wilson, and I cant think of too many American ones, apart from Weeden and possibly Empire. Not bad at all!
Nick

Here's a picture that I hope will explain the heater.

I put a flashlight in the whistle hole and the camera in the SV hole and I was able to get a fairly decent picture.

I'm not really sure how to explain the shape of the heater other than it reminds me of the shape of a coffee mug (without the handle Laughing )



The bottom sight glass screw sits very low in the boiler and was hidden behind the heater when I stuck the flashlight in that hole. So basically when the boiler is filled with water, the heater heats the water inside itself and I'm guessing on the outside edge of itself. Anyway, enough trying to explain, lets see if the picture helps:



I also gave it a run today on a full head of steam, video later:

Nick

Full head of steam, quite a difference from the 1st video! Shocked  Laughing

http://www.youtube.com/watch?v=feVmPtyrLek

Spokesmann

Jesus Nick, the things turbocharged! Shame that waste steam cannot be used again! The heater is an open cup or more of a tube?
Mamod Collector

You need a turbine on the end of the exhaust Nick  Very Happy
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