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I've been working on my Edelbrock 1406 again cause the old "hard start" after engine is warm seems to be getting worse.
I've decided that this issue has nothing to do with fuel percolating because after driving it all day and then parking it for the rest of the night till the morning the Jeep will always crank up without a hitch, very quickly, if fuel had evaporated overnight, it will not start right up like that. This is what I've done so far because the Edelbrock techs have told me that it's a fuel boil issue compounded with the fuel these days that are engineered for the FI cars. Changed the base insulator from a 1/2 inch thick to 1 inch thick phenolic, adjusted my choke to specifications according to their website, made sure there are no leaks at the base of the carburetor, checked and rechecked all vacuum lines(all lines are new), set my idle mixture with a vacuum gauge and a portable tach, insulated all the fuel lines within the engine compartment, installed a new electric fuel pump and regulator, adjusted the regulator to 5.5 psi, new fuel filters both before the fuel pump and after, and still the problem persists. In the morning on the initial start up, it starts up every time, I depress my accelerator once to close the choke plate and then crank and it starts up quickly, then after idling at 1k rpm a couple of minutes I nudge my accelerator and the idle comes down to 700 rpm, put it in drive and the idle drops to 500 rpm, drive it about 10 miles and park. Within 10-15 mins. when I return to crank her up, it won't start until I pump the accelerator pedal 3 or 4 times while cranking, then it runs rough for a few seconds, probably from flooding, then smooths out and it's back to normal. I've even tried leaving the hood propped hoping it will cool when I return but still won't start right away. I've been told by many to toss the Eddy and get a Holley and I might just do that but I have to say that this carburetor is fairly new and I dread forking out another 300+ bucks for a Holley if there is a possibility that there is a solution and a simple one at that. I've already considered that it might be an ignition issue but I've gone over just about everything that might be overheating like the starter solenoid, TFI coil, etc. Also had an old alternator shop downtown go over my electrical system and all checked out fine.
I've decided that this issue has nothing to do with fuel percolating because after driving it all day and then parking it for the rest of the night till the morning the Jeep will always crank up without a hitch, very quickly, if fuel had evaporated overnight, it will not start right up like that. This is what I've done so far because the Edelbrock techs have told me that it's a fuel boil issue compounded with the fuel these days that are engineered for the FI cars. Changed the base insulator from a 1/2 inch thick to 1 inch thick phenolic, adjusted my choke to specifications according to their website, made sure there are no leaks at the base of the carburetor, checked and rechecked all vacuum lines(all lines are new), set my idle mixture with a vacuum gauge and a portable tach, insulated all the fuel lines within the engine compartment, installed a new electric fuel pump and regulator, adjusted the regulator to 5.5 psi, new fuel filters both before the fuel pump and after, and still the problem persists. In the morning on the initial start up, it starts up every time, I depress my accelerator once to close the choke plate and then crank and it starts up quickly, then after idling at 1k rpm a couple of minutes I nudge my accelerator and the idle comes down to 700 rpm, put it in drive and the idle drops to 500 rpm, drive it about 10 miles and park. Within 10-15 mins. when I return to crank her up, it won't start until I pump the accelerator pedal 3 or 4 times while cranking, then it runs rough for a few seconds, probably from flooding, then smooths out and it's back to normal. I've even tried leaving the hood propped hoping it will cool when I return but still won't start right away. I've been told by many to toss the Eddy and get a Holley and I might just do that but I have to say that this carburetor is fairly new and I dread forking out another 300+ bucks for a Holley if there is a possibility that there is a solution and a simple one at that. I've already considered that it might be an ignition issue but I've gone over just about everything that might be overheating like the starter solenoid, TFI coil, etc. Also had an old alternator shop downtown go over my electrical system and all checked out fine.
At this point I'm gonna keep trying to figure this out, I mean it will start eventually when it cools a while so at least I can still drive it. EDIT: it started way after the exhaust pipe was replaced so it may not have caused it.
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