John:
Sounds like your base timing is wrong. The vacuum connection to the
distributor is a vacuum retard. When you hook the dizzy up to an active vacuum
port, the timing is retarded by 14 degrees. I am guessing that your timing is
set at 4ATDC. When you hook up the dizzy, the vacuum retard engages and gives
you 18ATDC, which will seriously slow the engine, and perhaps make it stall.
The Bentley manual is confusing on this point, and it is easy to get it wrong
(ask me how I know).
Set your timing at 10BTDC with the dizzy vacuum disconnected, THEN hook
the
dizzy up. I am betting that your car will run fine then. Your dizzy has been
rebuilt, and that means that the vacuum retard was probably replaced. On most
cars the vacuum capsule perishes due to age, rendering it inoperative. Since
yours has been rebuilt, it is now working properly, and if the base timing is
wrong, the retard function pushes the timing waaaay out of whack when it gets
connected.
Vance
Vance Navarrette
Cogito Ergo Zoom
I think, therefore I go fast
-----Original Message-----
From: 6pack-bounces@autox.team.net [mailto:6pack-bounces@autox.team.net] On
Behalf Of john doe
Sent: Monday, June 15, 2009 10:51 AM
To: 6pack@autox.team.net
Subject: [6pack] bad idle
have a 76 tr6 disconnected the egr valve and the air pump the car just refuses
to idle had the dist rebuilt every time i connect the dist to the carb it just
wants to die out when i rev it up it runs then wants to die out could it be
the carbs or a vaccume leak
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