"F. George McDuffee" wrote in message
...
On Mon, 08 Jun 2009 21:35:41 -0700, Larry Jaques
wrote:
snip
I wondered how they fit those together. They're all cast in auto
enigines (or were) and I've seen huge old 20th century motors with
bolts going across the counterweights/webs for disassembly, IIRC.
snip
For good description of making built-up cranks see
http://lindsaybks.com/bks2/tsotm/index.html
"building large marine engine crankshaft"
$9.95 + SH

Both this and volume 2 of "Tricks and Secrets of Old-Time
Machinists" are worth the money. Amazing what was done with
minimal tools and lots of skill.

I have bought from Lindsay Books for years and am well satisfied
with their products and services.


Unka' George [George McDuffee]

FWIW, there were built-up cranks used on some early motorcycles and other
small engines, as well. Some single-cylinder engines had press-fit crank
throws.

--
Ed Huntress