Fwd: Re: Port intake design

[andy quaas]

Here is the last message from James.  I will post to the list on this
subject.

Andy


---James Weiler <james at brc.ubc.ca> wrote:
>
> 
> 
> On Tue, 23 Mar 1999, andy quaas wrote:
> 
> > Sounds like something i can probably do.  Did you weld the injector
> > bosses in?  I could weld up a steel jig to hold the intake.  I never
> > thought of that.  How did you angle your injectors?  I found a pic
> > yesterday that shows them going straight down.  Bar stock for fuel
> > rail would work well except i have no way to drill a hole in the
> > center of it!  I am going to have trouble spacing the intake holes
and
> > the rail holes the same.  That seems to be my only big problem.
> 
> I made the jig out of 1/2 inch plywood.  Cheap and easy to work
with.  It 
> is essentially a large flat table with a ledge on one side.  I push
the 
> intake up against that ledge and clamp it down.  Then clamp the jig
to 
> the drill press table.  When I'm finished making the hole in the
intake I 
> unclamp the intake slide it over to the next port and clamp it
again.  
> Since the jig never moved it serves as an alignment tool and ensures
that 
> all the holes are in a straight line.  I did some carefull
measurments 
> such that the holes I drilled were all equally spaced.  This would
allow 
> the fuel rail to go on in either orientation.
> 
> Spacing the rail holes the same is easy.  Start with making the
intake 
> first.  Once the bosses are welded in (I had someone do that for me)
and 
> you've reamed the inside of the boss (to correct for any shift that
occured 
> from the boss not being held in the right position during welding)
you 
> will now have a 'template' for where the holes must be for the rail.  
> Measure the distance between and drill away.
> 
> You can get extra long drill bits to drill out the center of some bar 
> stock for the rail.
> 
> I'll look up those drill bit sizes today.
> 
> HTH
> jw
> 
> 
> 

_________________________________________________________
DO YOU YAHOO!?
Get your free @yahoo.com address at http://mail.yahoo.com