small lockwood - propane injection problems?

alex · Post by **alex** » Fri Apr 30, 2004 1:28 pm

I have started the building of the cc.
But I couldn't make it absolute round. How importent is that?

Alexander

jmhdx · Post by **jmhdx** » Sat May 01, 2004 10:10 am

The combustion chamber can be any shape you like, but only round things can be butt welded to other round things. For ease of construction I have been patient and found stainless cannisters, cones, pipe, table legs, chutney dishes and desert bowls and such until I had enough matching diameters. You don't need to fabricate anything but there are a few missing forms without which only simple form engines can be made.

mk · Post by mk » Tue May 04, 2004 9:31 am

Hello!

alex wrote:I have started the building of the cc.
But I couldn't make it absolute round. How importent is that?

It needn't be completely round, but the volume/ cross-sectional area distribution shouldn't be influenced to much.
I'm actully not using any sort of a rolling machine, just an anvil, some model pipes, a hammer and a vise (and a welder, of course). So my engines aren't completely round as well, but really try to give your best and work as exactly as you can (+-0.5mm should be possible).

Good luck!