Need help 4.0 conv pcv and elec choke connections
wolfclan
Jeeper
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- Location
- Charleston SC
- Vehicle(s)
- 86 CJ7 258 AMC20(for now) 5spd mostly factory.....but hey, I've only had it for 3 months!
I just rebuilt my AMC 258 i6 / 4.2l and did the 4.0 head conversion. I added a Clifford intake and Weber 38 carb. Therein lies the problem. I need help routing the PCV vac line and the electric choke.
Yes, I want to stay electric on the choke due to the wife driving it routinely. The former Carter barb choke wires don't show any current on my multimeter. I'm assuming that is because they are routed through the manifold temp sensors which are not currently installed. I could install them on the manifold, but don't know if they need anything else to function properly.. What's the best way to connect it?
The 4.0 Valve cover has a PCV elbow, not an actual valve. Since I have stripped all the extra emissions
off, I need to make sure i get this right. I have a breather cap connected by hose from the front of the valve cover to the inside of the air filter. Do I route the PVC line (the back hole on the valve cover) to the manifold vac port? Do I need to put a PCV valve inline? The one from my old cover is too small for the grommet and the book says one is not required for a 4.0.
Additional info:
Standard ignition, no EGR, check valves, etc connected. In fact the only electrical items connected are the alternator, coil, ignition mod, and coolant temp sensor(back corner of head) Additionally, the only vac lines connected are brake booster, vac advance and float bowl to canister.
Thanks in advance!
Yes, I want to stay electric on the choke due to the wife driving it routinely. The former Carter barb choke wires don't show any current on my multimeter. I'm assuming that is because they are routed through the manifold temp sensors which are not currently installed. I could install them on the manifold, but don't know if they need anything else to function properly.. What's the best way to connect it?
The 4.0 Valve cover has a PCV elbow, not an actual valve. Since I have stripped all the extra emissions
![Dung :dung: :dung:](/community/smilies/dung.gif)
Additional info:
Standard ignition, no EGR, check valves, etc connected. In fact the only electrical items connected are the alternator, coil, ignition mod, and coolant temp sensor(back corner of head) Additionally, the only vac lines connected are brake booster, vac advance and float bowl to canister.
Thanks in advance!