<VV> vacuum sorce YH carb.

[UltraMonzaWest at aol.com]

In a message dated 5/11/2005 10:36:13 AM Pacific Daylight Time, 
jimster1 at earthlink.net writes:

> Why not just tee into the line that goes to your boost gauge.  If you have
> one of Dale's vacuum advance\pressure retard units it will need to see boost
> pressure as well and it won't get that from any connection upstream of the
> turbo.
> Jim b.
> '66 Turbovert
> 
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That's FULL  vacume  ALL THE TIME...and only works correctly if you're not 
getting boost....at WOT!

TRUE  VA  is from "ported"  vacume...ABOVE / IN FRONT of the throttle 
plate....variable..

YH  have no provision..but can be drilled!  There's a blank spot where it WAS 
used on other models...


The Mechanical way to get it to work right......

Drill  and tap into ported vacume.......run the hose to the VA/PR  
diaphram...

"TEE  into the hose  with  a "checkvalve"  at both sources.......then  if  
vacume is present......it SUCKs  the one valve open / other shut  and gives 
varying amounts of VA....

Under boost......pushes the one open....other shut  and varying degrees of 
Pressure retard....


If this is too complex..ggggg   Get a SAFEGUARD  with the VA  controlled port 
built in....




Matt Nall / Patiomatt / WCUH / Chairman V V
69 Monza Cpe., 66 Monza vert, 65 Crown v8 Cpe.
Somewhere between Reno, NV and Coos Bay, Or.