Join Date: Nov 2007
Location: Off the Grid in Chester Grant
Hmm, I don't know what the part is by the red arrow.
The green arrow is pointing at the spark ported nipple for the distributor advance. If you follow the vacuum line from the distributor up across, it will likely go to a diverter valve behind the carb. From this round valve, a line should go to the CTO switch down on the manifold in front of the carb and the other line should go to that green arrow nipple.
When we kill the emissions computer, we hook the distributor directly to the green arrow nipple usually or leave it all be so it switches from manifold vacuum for the timing advance to ported when it warms up.
The black cover next to the red arrow is the choke controller module. It uses 12 volts to heat up a bi-metal spring to open the choke. From the sounds of it you will need to take it off and inspect the bi-metal spring inside. I suspect it is broken or sometimes they just come unconnected. The electric choke module can either be replaced electric or replaced with a manual choke.
it is a bugger to get off, a right angle screwdriver or a screwdriver bit in a socket wrench or even a screwdriver bit in a vise grip to make a right angle driver is the way to go.
Just an FYI for you, your gas filter is in upside down, this makes for long cold starts sometimes. The center line goes to the carb and the top line goes to the return line. If the return is on the bottom like yours, gas can siphon back to the tank when it sits, vapor locking the gas line. This line is to let the vapor blow back to the tank out the top of the filter on a hot shutdown.
it also doesn't look like your gas tank vent is hooked up. This is that charcoal canister thing and it should T fit to the PCV line just behind the carb. Without this added air flow to the PCV valve it won't work right. The PCV controls the engine sludge.
If the canister isn't hooked up, it will saturate with gas eventually and put a vacuum on the gas tank so it will act like it is running out of gas now and then. The canister also has a $2.00 air filter on it's bottom that needs cleaning now and then.
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos:
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