EEC-IV and timing problems
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Senior User
Joined: Jan 2003
Posts: 249
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From: Marshalltown, IA
EEC-IV and timing problems
I have a 85 f-150, 4.9 with the feedback carb and eec-iv ignition. I had to put in a new distributor a while back ago, and when setting the timing I noticed that it doesn't advance. When I rev it up (even with the spout connector connected) it stays at the 10 degrees that it's set at. If I really rev it, it might advance a little, maybe 3 degrees or so. Anyways, I tried pulling the codes using a voltmeter and using a test light, and haven't had any luck either way. The test light just stays lit and the vom meter stays pegged out. I'm pretty sure I had them hooked up right. Is my computer dead? I'm not sure what to check next, I don't care about pulling the codes if I can figure out how to get the timing to advance. I'm sick of having to floor it to barely keep up with traffic, any help would be greatly appreciated.
Thread Starter
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Senior User
Joined: Jan 2003
Posts: 249
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From: Marshalltown, IA
EEC-IV and timing problems
From the posts I've read about the feedback carb and eec-iv, it sounds like it'd be easiest for me to just scrap this setup and go back to the duraspark II. I couldn't find the thread now, but I think I remember reading that issues like this are quite common for my ignition system, and it's not one of Ford's better ones. Anyone know what year trucks I should look for to find duraspark II stuff to swap?
Hotshot
Joined: Oct 2002
Posts: 18,488
Likes: 22
From: The Big, Oregon
EEC-IV and timing problems
78-80 should be fine. Why not upgrade the intake and carb while you are at it? An Offenhauser intake, EFI dual exhaust manifolds, and a 350cfm 2BBL really wake up the 300-6. There are also other options for spark systems. I have a DUI setup from Performance Distributors, it was expensive, but worth it. I think it was around $375 for the distributor, cap, rotor, coil, and module (HEI setup).
New User
Joined: Jul 2003
Posts: 10
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From: Dearborn Michigan
EEC-IV and timing problems
hey, im goin thru all that right now, and i got my parts from murrays, and ive spent 318 bucks so far just for the distributor, motorcraft cap(because of some oddball distributor) rotor, module, coil, misc wires, and a stock carb, i wanted to do the dual manifold or headers, and a new intake/carb but i dont have the funds....yet, goodluck with your swap
Rob
Rob
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Senior User
Joined: Jan 2003
Posts: 249
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From: Marshalltown, IA
EEC-IV and timing problems
I'd love to upgrade the intake and carb, but I don't have the funds. I was hoping to find something at a salvage yard for a descent price. Within the last year I've put in a remanufactured carb and a new distributor (along w/ cap, rotor, module, coil, wires plugs), so I still can't decide if I should work on my timing problem or replace with duraspark II (wish I would have to begin with). I'll look around for prices on those years parts, will I need a new coil also or will my coil still work? Thanks guys
