Join Date: Jan 2012
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Carter BBD won't run out of high idle
It has been a few years, been building a house, having kids, etc. so I unfortunately let my Jeep sit and decompose. Last summer I decided to get my 83 CJ7 back on the road. Last time it drove on the road was 2006. I fired it up last summer and it ran decent, it actually idled fairly well. To make a long story short, I got a new frame, cleaned it up, swapped the drive-train and body over, new brakes, fuel lines, etc, and a year later, just had the opportunity to start it up again. I cannot get it to idle. I start it, and it runs in high idle, but as soon as I kick it down (once it is, or should be, warm enough), It immediately dies.
Background: 258 with a BBD. has no smog/emissions stuff. I think it must be an older model BBD, as it doesn't have the stepper motor, etc. 1978 intake manifold. Team Rush ignition upgrade. Have 2 vacuum lines connected to the evap canister, one to the vac advance on the distributor, one to the PCV, and one to the choke. the others are plugged, as can be seen in the picture.
It used to run like a top, but something is obviously cracked, dried out, or gummed up. Presently, it runs better with the choke plate partially closed, even when hot. That means it is set lean, right? With these symptoms, where should I start looking? Where should the idle mixture screws be set? I have them 4 turn out from all the way in right now. I don't really want to invest too much time or $ in this carb, as I have a MC2100 I plan to rebuild and put on in the future, but I just wanna get out and drive the Jeep as it has been so long and my 2 kids might want to go for a ride more than me! The MC 2100 will not be ready for a few months.