"Cé hé sin" (michael-m-mouse)
09/29/2016 at 18:38 • Filed to: Lanz, Two stroke, Diesel
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"Cé hé sin" (michael-m-mouse)
09/29/2016 at 18:38 • Filed to: Lanz, Two stroke, Diesel | 1
| 5 |
Recently I’ve been exploring the somewhat unusual world of pre and post war hot bulb tractors from Lanz, now Deere’s German tractor operation.
As the 1950s went on it became obvious that the days of the hot bulb engine (fearfully heavy, inefficient) were numbered so Lanz moved over to diesels. The first models took up where the hot bulb machines left off with huge single cylinder engines. Not all buyers wanted a big, expensive tractor though. Some folks wanted a little, cheap one. Lanz duly obliged with models like this.
As we see this had a little engine, painted silver in this case. It was a single cylinder two stroke diesel from Triumph (not the British bike maker, but at one time related) displacing just 533 cc and churning out about 10 to 12 hp at an unheard of, for Lanz anyway, 2600 to 2800 rpm.
Unlike multi cylinder diesel two strokes it was crankcase aspirated (no supercharger) and sounded like this:
A bit of a change from the dunk....dunk....dunk.... of its bigger brothers then but it must have been an irritating sound to spend the day working with.
jimz
> Cé hé sin
09/29/2016 at 18:59 |
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so how were they lubricated?
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Cé hé sin
> jimz
09/29/2016 at 19:07 |
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Total loss lubrication I guess. They didn’t use fuel/oil mixture. You’ll see there’s a little oil tank in front of the fuel tank. The diesel itself is oily anyway.
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jimz
> Cé hé sin
09/29/2016 at 19:26 |
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that’s why I’m wondering; you can see the fuel line to the injector so they obviously couldn’t use pre-mix. maybe it has an oil mister/atomizer in the crankcase?
Birddog
> jimz
09/29/2016 at 19:32 |
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I was curious too.
Google to the rescue.
“The lanz bulldog has two oil reservoirs. One has clean oil which is fed to the mains and rod bearings. this oil runs down onto a sump and is pumped back up to the other reservoir. this oil is then fed to lubricate the piston and cyllinder and then it gets burnt. On a good day a lanz will burn up to a gallon of oil”
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Cé hé sin
> Birddog
09/30/2016 at 04:48 |
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That’s probably (judging by the oil consumption) one of their hot bulb tractors. I’d guess that the little one above used a similar arrangement.