Join Date: May 2007
Location: Baltimore Maryland
Re: Automatic choke to hot?
The black housing only regulates how long the choke remains in a closed/partially closed position. It has nothing to do with the idle directly. There is a fast idle screw just under the choke thermostat that regulates the idle speed when the choke is operating. I would set the thermostat housing to the center or 1 mark to the rich side of center and leave it. After that, with the engine COLD, set the choke and start the engine. Immediately after start up, go to the passenger side and turn the fast idle screw to achieve a fast idle of around 1500rpm. This must be done cold because the oil is thicker and if done hot, a fast idle speed hot will be slower once the engine cools and the oil thickens.
As far as the thermostat housing getting hot, it will get hot, but it should not burn your fingures. Don't get me wrong, it will get hot, but you should be able to place your fingures on it without the skin being physically burned. If this happens, you should double check the positive wire is supplying 12v and nothing more. Also, check the ground is tight and in good condition. Once you set the choke, you should be able to leave it all year. I like to have 2 settings. 1 for winter and 1 for summer. I don't like to have my choke staying closed for a long time when it's 90+* outside. The 1 mark to the rich side of center should be good for winter and 2 or even 3 marks to the lean side of center should work for summer. It all depends on how long you want the choke to operate for in hot weather.
Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)