Message text written by INTERNET:CC50506@aol.com
>I just rebuilt the carbs on my 1970 TR6 (stock strombergs with "fixed"
needles). They were really crudded up - most of the internal passages
completely blocked with grunge.
It started fine when the carbs were refited BUT (there's always a but!) I
can't get the idle below 2700 rpm, even with the linkage disconnected and
the
idle screws backed all the way out.
What could I have done wrong here?
<
Sounds like the over-run bypass valves are stuck open. These are the
little diaphram operated valves on the side of the carb body next to the
throttle shaft. As a test you can pull them off, cut blank-off gaskets
(with no holes except the screw holes) and reinstall them. These will
block off the ports leaving them inoperable. Do one at a time and you will
likely find that only one is the problem.
Good luck
Dave
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