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Putting it all back together

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Steve

Steve

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I have just finished putting everything back together after taking the manifold off to replace the front pipe to cat gasket, and I fired the car up for the first time in several weeks. The car started and ran, but was idlin very high and wouldn't come down. I have put this down to the fact that the water choke didn't have any water in it. Any thoughts/opinions?
 
NutmegCT

NutmegCT

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Steve - my 76B's Weber dd has a water choke. The PO had disconnected the heater, and had run the heater hose from the heater valve to the carb, and back to the block. But he left the old heater valve closed! So the carb never got any hot water, and was always reading the engine as "cold". Symptom: idle was always over 2000 rpm, even when engine was hot and idle screw was fully backed out. When I discovered this and opened the heater valve, the slow idle dropped downn to a good 750 rpm.

No hot water in the carb choke circuit = fast idle.

PS - any suggestions on how to "easily" adjust idle and mixture on a Weber downdraft, when the two screwheads are *facing the valve cover*? Argh.
 
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Steve

Steve

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I think that it may be a combination of both.....the water missing from the choke seems to be the logical cause, but I may well have mounted the throttle cable too high as well. I will slacken it off and try again in the morning. Thank you both for your suggestions.
 
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