I'm guessing that if you just disconnected the egr all together, you would
pass the emissions test. If you need to make it look like the EGR is
connected, just place a piece of tape over the EGR vacuum nipple before you
attach the vac line. If you want to hook it up, just go to the junk yard
and pull the cutoff valve off of any car. The Buick regal that my jeep
engine came out of used the same type of device, has 3 vac fittings on it.
___________________________________________
Chuck Pedretti
Senior Consultant, MCSD, MCSE+I, MCDBA
Magenic Technologies
http://www.magenic.com - Magenic Technologies website
http://www.oldjeep.com - Personal website
___________________________________________
-----Original Message-----
From: rtgetzinger@scif.com [mailto:rtgetzinger@scif.com]
Sent: Friday, June 01, 2001 2:07 PM
To: Spitfires@autox.team.net
Subject: re: Spit EGR plumbing?
Update
Thanks for the info Chuck.
Apparently when the choke is engaged at cold startup there is a cut off that
occurs as the choke cam at the carb opens, shuts off (or opens up the vacuum
line reducing vacuum volume) killing vacuum to the EGR, a vac tube runs from
that choke cam to ? somewhere. There is a control signal taken via tubing
and
vapor traps that controls a metering valve that is one brain of the vacuum
to
the EGR. The smog Referee didn't know about the metering valve, I'd like to
plumb without one, don't have one.
Apparently the EGR's vacuum line could be tee'd into the vacuum advance
line,
I know that vacuum is progressive as witnessed by the timimg advance.
I believe, the constant vacuum outlet on the left side of the intake
manifold
connects to the anti run on valve. I am guessing that with ignition on the
power causes the valve to close, key off and the valve opens.
Anyone have the system properly plumbed and could avise where I'm off?
Rob
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