One port has less vacuum than the other (and I guess maybe produces pressure at
times). I just can't remember which is which. I know that when I replaced all my
vacuum lines, I had a hell of a time getting 'em hooked up right.
Cheers,
bob
GatesDavid@aol.com wrote:
> Why would I need to use a different port? I thought that they both worked
> under the same principle the only difference being that the advance operates
> from the outside of the diaphragm which pulls the control rod outward with
> higher vacuum while the retard operates from the inside of the diaphragm and
> pulls the control rod inward toward the distributor. If both function under a
> vacuum principle, why the different port? Currently my retard is attached to
> a port on the manifold directly below my Webber downdraft. The only other
> port available is just above this manifold port but it is on the carb itself.
> Currently nothing is attached to this second unused port. Should it be capped
> if not in use? It is open with nothing attached to it.
>
> Thanks for listening to my run-on sentences and general running on and on.
>
> David Gates
> Hawaii
> '73 Spitfire 1500
> '78 Spitfire 1500
> http://members.aol.com/gatesdavid/index.htm
>
> In a message dated 11/14/98 9:33:18 AM Hawaiian Standard Time,
> examiner@scci.net writes:
>
> > You WILL have to fiddle with the vacuum connection to
> > insure you use the correct port from the carb.
--
Bob Norway
Rockledge, Florida
Home Page http://www.geocities.com/CapitolHill/Lobby/5953/mypage.html
ICQ# 3752712
***************************
TLCB
Udorn RTAFB Nov'70 - Nov'71
432 AMS/Autopilot
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SpitList
1976 Triumph Spitfire 1500
FM43376UO - Daily Driver
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"Don't Take My Pint Mate,
I'm In The Loo!"
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