Jerry, relax.
For me there are three sides to the later TR6 plumbing.
There is the narrow tube side with the widget in the top hose, ports on
the carbs, the dizzy retard etc
There is the EGR with its narrow tube connection
And there is the wide tube canister, carb and crank vent system and
anti-run on valve.
In my case I wanted to clean things up and reduce the chance of vacuum
leaks so I eliminated almost all narrow tubing and the EGR. I replaced
the top hose with an earlier one-piece hose and I replaced the dizzy
with a rebuilt earlier dizzy with a vacuum advance. All other ports for
the narrow tubing were either eliminated or blocked off. I just have the
one narrow tube connection to the vacuum advance which I think I can
cope with. Timing and idle were adjusted accordingly now that I didn't
have the retard induced idle.
The canister, carb and crankcase vents and anti-run on valve I left
alone. They do no harm, actually do some good and they don't contribute
to vacuum leaks.
My engine bay no longer looks like spaghetti and the car runs well.
Stan
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net] On
Behalf Of Jerry C Shaw
Sent: Wednesday, July 26, 2006 7:40 PM
To: Robert M. Lang
Cc: 6pack@autox.team.net
Subject: Re: Zenith Stromberg Emissions/Vacuum Spaghetti
Hi rml
I wrote:
"2) So, since my '75 (and '74) already has no E.G.R. valve (the hole in
the intake manifold has a brass pipe plug in it), the only emissions
breathing will be to allow the crankcase vapors to exit the valve cover
to the large carb ports on each."
Maybe it wasn't articulated well ---I had planned on keeping the
crankcase ventilation to ZS linkages to avoid that problem, ala Goods
3-carb manifold setup, all three of which are hooked up to the valve
cover.
As to the petrol stink w/o the carbon canister, mine sits outside under
cover.
As to blockage of the auto-ignition vacuum line ports, run-on valve etc,
I hear nothing from you that's useful.
I don't care about Webbers, racing nor plan on anything so stupid.
Just simplicity, fewer hoses to break and crack, fewer leaks, fewer
things to maintain in a state that doesn't emissions test 21 year old
cars.
If that's ill directed effort, so be it.
jcs
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