"Tim Wescott" wrote in message
...
http://www.metalworking.com/dropbox/. Search on "cox_head".

Just finished running it -- ran through a whole tank of 10% nitro fuel. I
couldn't do that with the stock head; I think it just didn't have enough
compression. This head has stupid-high compression* -- it runs better
with a stack of three head gaskets than it does with none (I need to try
it with one or two).

_And_ it starts with a ni-starter -- Cox glow heads _demand_ a good dry
cell battery, and just sneer at you if you try to give them 1.2V from a
nicad.

* Note that it was built with more compression than the drawing indicates,
and wider fin spacing.

--
Tim Wescott
Control system and signal processing consulting
www.wescottdesign.com

That's pretty nice! I have a Norvell engine that I'm not sure if glow plugs
are still available for, if not I may be making an adapter similar to that
some day.

I used to want one of the Davis Diesel conversion heads for the COX .049s
but never got one. I still think it would be fun to play with, just not
sure how practical they are.

I have a "Tarno" carburetor from years ago, fits on a Cox TD.049/.051 engine
and gives you throttle control, I never used it, they may be worth something
these days.

RogerN