On Sat, Feb 05, 2011 at 12:04:51AM -0500, Dave wrote:
> A farm diesel is a great idea for a slow speed diesel.
> Ahh.. a Case. I was just out plowing out the driveway again with my
> 1955 Case 400 wide front equipped with an 8 ft blade on the back.. :-)
> It is a gas model, but I really like it. It pulls like crazy, has a
> max engine speed of about 1500 rpm and is built like a tank.
Sadly we sold it a couple of months ago, but the old Fowler bulldozer,
which did some good work on the farm, had a 6 or 7" bore and about a
foot stroke. It idled around 70 RPM, and worked well around 120 RPM,
pushing a 10 foot blade.
Starting was with a 12 gauge cartridge, after setting the flywheel on
a mark, or by hand cranking. That involved unscrewing a plug in the
cylinder head, fitting a rolled-up 2" square of blotting paper
impregnated with potassium nitrate, lighting it, and hand-cranking with
that fizzing in the combustion chamber. The valve lifter had a small
wheel, running in about 5 turns of thread on the outside of the 2 ft
diameter flywheel. By the time that fell off, it was possible to have
some revs up, if you were fit.
When the paper wasn't to hand, we used a couple of matches, or a short
stick of manuka (local brushwood).
Erik
--
"Further north on Queensland's Gold Coast, a company constructing a new
apartment block on low-lying ground was ordered to install emergency
moorings for rescue boats on the building's first floor because of
concerns over the possible impact of climate change."
- http://news.bbc.co.uk/2/low/asia-pacific/8542355.stm
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