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#1
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Fast Idle when cold question.
I know I asked this question before. Whenever I start my GTO cold, it wants to Idle at 3,000 rpm. Still not sure why.
When I start the car I move this linkage to bring the Idle down. Until it warms up. This is not the fix. But it works for now until I figure it out. Could this be stuck? It does stick a little. I am at a loss. Any help would be great. Thanks FB66 |
#2
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The linkage for that cam on the 1966 carb is controlled by parts on the other side of the carb on a 1966 Tri-Power.
Since you are on the Great lakes area, I would send the carb to Dick B and haver him make sure all of the parts on the center carb and choke system are free to move and are adjusted properly. Dick is a very good Tri-Power Guy. Dick B is located in Wisconsin. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#3
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Perform this adjustment and see if it helps:
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#4
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Thanks for the replies.
Kenth, I will give it a shot. |
#5
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Kenth is correct. You can also adjust the amount that the choke pull-off diaphragm opens the choke on startup. When the diaphragm is fully retracted, the choke should be pulled open to about 3/16". To achieve this gap, bend the small link rod on the passenger side to change the gap. It would be wise to check the pull-off diaphragm to see that it is working, also. When the engine is idling, the metal tab on the diaphragm should be pulled fully inward.
When cold starting your car, the fast idle should be around 2000 rpm. A quick tap on the pedal should drop this immediately to a lower rpm.
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BONESTOCK GOATS '64 GTO Tripower Hardtop (Wife's Car) '64 GTO Tripower Post Coupe (My Car) '99 Bonneville SE Sedan |
#6
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Fast idle speed.
Which way would you bend the tang in the pic. to increase speed ?
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#7
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Bend the tang downward to increase fast idle speed. There is a limited amount of adjustment, however, by bending that tang.
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BONESTOCK GOATS '64 GTO Tripower Hardtop (Wife's Car) '64 GTO Tripower Post Coupe (My Car) '99 Bonneville SE Sedan |
#8
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Thank you.
Thank you Dick.
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