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Original Message
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RE: Old fords cold blooded? |
By RC Moser - 02/03/2001 1:28:40 PM; IP 205.188.199.56 |
Also, you stated that all your old fords are cold blooded. This is usually caused by choke adjustments not set correctly. Another cause is points pitted, worn or gap off. Old Ford carb. are easy to adjust and preform guite well in all seasons if properly adjusted. Their is a intial setting that's set for summer driving and a richer setting set for winter driving. If the car is set on summer setting usually two notches to the lean on the thermostatic housing this could cause hard starting in the winter due to the choke not closing all the way. On the other hand if the choke was set too the winter setting usually two notches to the rich then the engine will run rich when in the warm up mode. These setting has to be done when the engine is stone cold and the choke butterfly adjusted to where it just touches the carb. venturi housing. After you get that right you have to set the crack setting after the engine is started. This is usually about 1/8" gap this allow the right amount of air to enter the engine during warm up to prevent stalling (gap too wide) or sputtering (too rich, gap to narrow. After you get all these setting correct then you can adjust you fast idle usually around 1100 RPM. (This applys to most all carb. just have to figure out how to adjust, some you have to bend rods some have adjustment nuts/screws) All these adjustments are slightly different for different models, but usually real close to these numbers. My old ford will start at 25 below (no block heater) fire right up and will not die even if I put in gear and drive off. You just have to be able to determine what the problem is and adjust something to correct it. I seen guys buy aftermarket carb. trying to solve a adjustment problem. Even with aftermarket carb. and a elect. choke you still have to do the intial adjustments, if they are off you still have the same problem, cold blooded starts. Not all of this may apply to you but I figure too much information can't hurt. hope this may shed some light on cold starting problems. |
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