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a nine cylinder radial engine, plans by "ageless engines"

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Artie:
I think its about time some did a Lycoming flat 6 or 4.... although Im sure it wont look as mean as a radial... :)

madjackghengis:
In reply to Artie, I've got a book called "Building Mastiff", a full and complete set of plans and description of work to build a four cylinder water cooled flat engine, meant for a set of castings, but can easily be done from billet.  It is meant to be a working engine, so it is well designed and stout.  I hope to build it one day, but not till this one's done.!!!  Doctor's appointment today, next step is to start work on the crankshaft assembly, and then the rods.  The heads are complicated, but rather straight forward, just difficult and tedious work, the crankshaft is built up of five main parts, and some smaller ones, and will need testing in situ.  More to be posted later on.  Mad Jack

madjackghengis:
Well all, having gotten the cylinders out of the way, I've gotten to the crank, which of course is the thing we all look forward to making, when building an engine.  In this one, the crankshaft is a five piece affair if you only count the big pieces, and about a twenty piece one, if you count all the pins and such.  I just count big pieces as that way I don't have to take off my boots in the count.
   The front shaft, which drives the propeller, has the first gear of cam drive train cut in the shaft its self, it is four and a quarter inches long, with a breather hole drilled from the prop end back, with a cross drilled hole near the pinion, and an oil feed hole drilled from the back end, half way through to the main bearing, where a hole will be drilled to let the oil out on the bearing.

threading the mainshaft for the prop nut

finishing the front shaft end

drilling the oil passage for the main bearing from the back side of front main shaft

cutting the pinion gear on the front shaft for the cam drive train

finished pinion, ready for a bearing sleeve to be pressed on and machined to fit.  cutting pinion runs off into bearing area, so it is cut down, making room for a sleeve when the pinion is done.

front shaft with the spur gear which it will drive

starting the jack shaft for the cam drive train

finishing the other end of the jack shaft for the cam drive pinion

jack shaft with both spur gear and pinion mounted, along with main shaft

main shaft propped in place in front main bearing, with jack shaft installed and spur gear engaged with pinion of the main shaft.  Main bearing is integral with bronze bearing which carries the cam, and also has rear jack shaft bearing reamed in it.

zeroaxe:
My goodness  :bugeye: You rock! This build is fantastic. Honestly, I can only dream to have the skills you have...................AND THE GUTS to tackle such a project :headbang:

Bernd:
Lookin' good there Madjack.  :thumbup:

Bernd

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