Hello!
You guys are gonna love this one.
Finally, after 2 weeks of ordering and gathering up parts and tools to troubleshoot and run full top end diagnostics, I get up to the garage yesterday to begin work, and decide to start by pulling the spark plugs to see what they can tell me.
Now that I know the firing order, I followed the wires from distributor to cylinders pulling each plug along the way. Well wouldn't ya know, numbers 6 & 7 had been switched! By who I dont know. But as you can see in the photo they did not like their position. Fouled. Is it possible that running it while they were crossed caused serious damage to the engine? During the last year I ran it many times while parked for 30 minutes at a time about once month.. gave it throttle/revved it a few times here and there.. drove it up and down the street a few times(5-6) times where it displayed backfiring and total lack of power.. even went WOT a couple of times, only to see it go limp. So now, before attempting to start her, I gapped and installed a new set of plugs, installed a new set of wires correctly, replaced the points and condenser with ones of a higher quality(nos blue streaks), lubricated cam, block and felt "wick", oiled oiler on side of distributor and also 2 drops on the felt wick atop cam shaft, cleaned and lubricated the distributor from the breaker plate on up(everything seems to be moving as it should).. installed new lead wire(old one cracked), cleaned all connections on/to factory ignition coil, replaced vacuum advance with a good NOS Mopar unit. Then, with the distributor cap off, (I'm solo here), I got in the car and slightly cranked motor several times to get the points block to get up on the distributor cam lobe in order to open the contacts to their widest before setting the gap to spec at .017. This took several attempts, and even though it finally appeared to be up on the lobe, the points were still closed.. So I set the gap at .017 with feeler gauge anyway, clamped the cap back on and went to fire her up.
When I turned the key it cranked for a while but would not fire. I forgot to put the rotor back on. Tried again.. strong cranking action but no start. So I moved all the wires one over counterclockwise on the cap, keeping the order correct.. thinking the number one tower should be pointing more towards the number one cylinder(as long as firing order is correct, does position on cap really matter? It is not the factory cap btw). Got in and started cranking again.. after several times she started up. A little rough for a moment, but the engine running sounded very strong-- really came to life! Headlamps were very bright and steady at idle and even with throttle. Throttle seems stronger, powerful and smoother. Engine isn't shaking at all. While still parked I went through the gears, and at first the car did not kick forward/ backward like it should.. but the second run through them it did just that. Also, each time I turned the key off and restarted she fired right up, full of life, unlike anytime since I got her. The amp gauge on dash was at first pinned way over to the right, but as she ran more, the needle slowly moved back closer to center.. the needle does jump when the the blinkers or hazards are on, and they blink very fast. I think the electrical stuff is a symptom of not driving the car enough(at all!), and I have a feeling that once back on the road these ills will go away. Still, it sounds a bit off, and idle seems to stay a bit too high. Mixture screw adjustment had no effect. I think I need to hand crank the engine via crankshaft bolt while looking at the distributor cam position to get points gap correct.. start her up again, then check dwell. I'm also thinking I should use my vacuum gauge to do initial tune on carb idle mixture, idle speed etc.. check system vacuum pressure, and then finally check and set total timing with my fancy virgin gun. I've read that timing is always the last thing to set when tuning an engine, and that anytime you change or reset ignition points, you must also reset timing.
I still need to take her out to see if the incorrect plug order played into my drivability issues. I would like to get her idling at the spec rpms and with timing correct before taking her for a test spin.. but after finding that spark plug switcheroo, I am very optimistic. I feel it might just be a matter of a good tuning from here on out.. starting with factory specs then tuning for a bit more performance later on.
All ideas and questions welcome.. please!
Question: Will hand cranking to turn distributor shaft screw up/bend valves/valve timing?
Another question: Do I really need to find top dead center on my number one cylinder before setting timing(since it was already set at the factory 14,000 miles ago.. and she already starts up)?
Better yet, do I need to plug my number one wire into the terminal that the rotor points at? Should I slowly crank engine to TDC first and then look at rotor position, and rearrange wires accordingly if necessary? Right now the rotor does not point to the number one wire... it seems random. Am I overthinking this??? As far as I know the distributor has not ever been removed since factory build.
Thanks in advance everyone.
Alex/GG