"Del Johnson, North Point Solutions, Inc" wrote:

Yes. I'd appreciate some input on building the intake too. I

just got my

manifold. It looks good and its a great start, but the flange

is too small

and two of the bolt holes miss it. ('93 13B REW). How do I

get around that?

Weld a plate on the edge? Paul mentions "bell mouths", but

the ends of the

runners are square and flat. Should we fabricate these bells

or buy them -

any sources? Also, for those who've removed metal with a die

grinder - any

tricks on measuring when to stop?
John Slade
Cozy IV 13B Turbo

I have used a wood router with a carbide tip radius bit with the ball
bearing roller guide on the bottom to cut the bell mouth radius on 6061T6
aluminum.  You may have to rig up a jig to provide a larger flat surface to
glide the router across.  Also it would be wise to take shallow cuts in
aluminum, changing the depth of the cut with each successive pass.  I have
use a 3/8" radius bit and it does a fine job at making bell mouths.  Be sure
to wear wrap around eye protection.  The fine aluminum shavings go
everwhere.

Del Johnson

 
The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2003 All world wide rights reserved.