I have a pair of weber downdrafts to go onto my TR6 when the weather warms
up here in the midwest and I can tinker with it again. I've been thinking
about what to do with the vacuum line to the distributor from the rear
carb. I have the stock ZS carbs on it now and I hadn't realized that this
was the way the vacuum retard works on this setup.
Does anyone have suggestions on what to do with the vacuum line and the
distributor with this type of setup?
Rob
74 TR6 daily driver (except in the salt/snow!)
------------------
>Date: Sun, 11 Feb 2001 22:05:55 -0500
>From: David Massey <105671.471@compuserve.com>
>Subject: TR7 BFH#54 - New dizzy and emissions
>Message text written by INTERNET:Eganb@aol.com
>
>>One more question. My Bentley manual doesn't show which vacuum source to
>plug the Lucas 45DM CEII vacuum unit into. I found a vacuum line
>underneath
>the front carburetor -- it was plugged with a screw, so I used that vacuum
>source. Let me know if there is somewhere else I should be connecting the
>dizzy vacuum to.
><
>
>The vacuum retard unit should be connected to a port on the underside of
>the Zenith carb very near the throttle plate. This port is downstream of
>the throttle plate when the throttle is closed but when the throttle is
>opened the throttle plate moves inward and the port soon becomes ahead of
>the plate and the vacuum goes away. In this way the vacuum retard is only
>etarding when the throttle is closed.
>
>The vacuum advance port is on the top side of the carb and works in an
>opposite fashion.
>Dave
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