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Old 05-23-2022, 10:41 PM   #43
69swb
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Join Date: Apr 2022
Location: Columbus GA
Posts: 34
Re: Frustrated overheating, timing issue?

OK folks evening update

Cold in south georgia this morning, ~60F, leave it to nature to mess up overheating troubleshooting. Mechanical guage read 160-170 throughout the drive to work, a little low, but not my biggest issue. Truck had a rough start, trying to stall (like 100 rpm until it started warming up, picked up to normal idle in park, in R and D it wanted to stall, So in the driveway this morning all i did was turn the throttle screw up in increments until putting it in R and D would let me get some kind of movement. During the drive, at stoplights, give it gas and it lugs, tries to stall, until combustion or something catches up, when it does start moving at speed it feels really rough and choppy - almost like a cylinder isn’t firing. same behavior as before - idle got worse as i i drove it, having to put it in park at stoplights. 20min drive to work.

Get to work and I open the hood while running to check the spark plug fitment at both ands, everything is connected. But these are cut to fit MSD wires that I just made so I’m going to check the resistance of the wires again - this wasn’t a behavior of the truck after these wires were installed, it developed later. But the new pertronix distributor is smaller diameter so a few of the wires are tighter - that could be causing an issue. Checking resistance of each wire tonight and have more superconductor wire and ends to make new wires for the tight ones.

Also in the parking lot at work this morning - there was an eye crimp piece not connected to any wire smoking connected to the junction post by the battery. Luckily truck started after work, but once I got home it wouldn’t. Ammeter fused lead was blown. I figured it would be a good idea to be unsafe, keep the positive terminal attached to the battery, and promptly shorted the battery accessory wire to the fender. After a small and frightening electrical fire, I figured i should probably do some rewiring if i wanted the truck to start again. Embarrassing - but everybody poops.
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OK finally on to the carb. Here I am right now getting started on my 6pm task at 1040pm. Very rectangular transfer slots - looking up the procedure to set the two idle screws correctly now.
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