[TR] fast idle problem

[DAVID MASSEY]

 Did you get the throttle plate centered?  If it is not centered it will hit the throat on one side while there is still a big gap on the other.  
 
Dave 

 
 
-----Original Message-----
From: Bob Leaver <boleaver at gmail.com>
To: Triumphs at autox.team.net
Sent: Tue, May 12, 2020 4:58 pm
Subject: [TR] fast idle problem

I have a 1965 Triumph TR4a that I rebuilt the SU carbs and now I can't
get the idle below about 1500. I've tried all the screws and checked
all gaskets and nothing. The only possibility I can come up with is
air getting around the shafts. When rebuilding the cars I didn't
replace the shafts because I didn't have a reamer. Moss has a reamer
for $290.00. I looked on line and can't find a less expensive
replacement. The book states the size of the reamer is 5/16" +
0.0105". What kind of measurement is this? Can you use a 5/16" reamer?
Does anyone have ideas how I can get the idle down? Does anyone know
of a cheaper reamer to use? Thanks, Bob
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