Need Help Tuning my 318

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Holmespse

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I just started restoration on my 72 Dart Swinger. It needs alot of work but it always ran fine until this spring. I started it up and ran it for an hour. It started missing and running rough and no pull on acceleration. I found that a spark plug wire had melted and shorted out against the exhaust manifold. I bought new Wires & Plugs, still missing. I rebulit the Carter 2 Bbl carb and got a new fuel filter, still missing. Timing checks out OK and no Vacumn leaks. What am I doing wrong?

Thanks in advance
Rich :sad1:
 
Timing chain may have jumped. What type of iginition is it? What is the timing set at?
 
Possible the timing chain jumped as mentioned. They came factory with NYLON toothed timing gears that are pretty notorious for going bye-bye and clogging your oil pickup full of nylon chips. not that i would know...bah.

Anyway, turn the motor over to TDC on the harmonic balancer. pop the distributor cap off and make sure the rotor is pointing twords where the #1 spot on the distributor cap is. If it seems right, go ahead and check all grounds and i'd swap the ecu out for a new one. You'll need a spare anyway, they go out when you need them to run. damhik on that either lol.

Also take a gander at the cap and rotor. If you've never replaced it, i'd recommend going ahead and doing so. You'll need to one day just as a part of a tune-up. And you can cross it off as a possible cause to your issue.

Also don't overlook something like bad gas. How old is the fuel in the car?
 
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