I'm not saying the plugs are the problem.
But I've seen 3 of 8 not fire right out the box.
Hence my stance on Autolites.
Hornswaggled again
- Thread starter 69conv
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But I've seen 3 of 8 not fire right out the box.
Hence my stance on Autolites.
Had a Carter avs.
Rich H.
Well-Known Member
Oh boy!! Yes, definitely hornswaggled.
Also probably bamboozled. Maybe slightly hoodwinked.
I'd have the carb off and a bore scope down the carb pad to look for oily intake ports, or if the scope is not available (I don't have one) pop the intake manifold off for a peek.
Also probably bamboozled. Maybe slightly hoodwinked.
I'd have the carb off and a bore scope down the carb pad to look for oily intake ports, or if the scope is not available (I don't have one) pop the intake manifold off for a peek.
swissarmy
Well-Known Member
Run it, time it, tune it.
Leak down test will tell you what is going with your valves.
Vacuum Gauge can tell you all kinds of god things: Vac Visual: Quick Guide to Vacuum Gauge Readings - OnAllCylinders
Drive it then change the oil and cut open the filter and look for sparkles.
Don't make assumptions that you got cheated. Be a scientist and find out what is going on with the motor! You can do it!
Leak down test will tell you what is going with your valves.
Vacuum Gauge can tell you all kinds of god things: Vac Visual: Quick Guide to Vacuum Gauge Readings - OnAllCylinders
Drive it then change the oil and cut open the filter and look for sparkles.
Don't make assumptions that you got cheated. Be a scientist and find out what is going on with the motor! You can do it!
To do a decent compression test you do need a warm engine, good battery charger hooked up, carb blocked open , and several rotations at each cyl.
EmitRDetsaw
Active Member
OP, where did you order your plugs from? Some Amazon resellers are shipping out counterfeit plugs. Boxes are printed with cheaper dyes, no cardboard or plastic thread/electrode protectors, gaps all over the place, questionable material used on the business end of the plugs, etc. There are more than a few YouTube videos addressing the situation and how to spot junk plugs. Hopefully you didn't order from one of the more questionable resellers and got your plugs from a trustworthy source.
Lefty71
Well-Known Member
Don't want to hijack this tread, but I'm about done with Amazon myself. Seems every-THING internet related anymore has no living customer service, and they turn your queries into phishing schemes looking to store more info about you, instead of helping when they short your order or wrong you in some way.
Just received mine. Tested the resistance and they are all within spec. The fakes vary widely. Checked the gaps and they only needed minor tweaking. Sixitysix was the supplier thru Amazon and at a pretty good price. Hope to complete the compression testing and install tomorrow.
Turns out I wasn't doing the compression test correctly. I needed to block open the carb and give it 9-10 revolutions to get an accurate reading. Did 2 on each bank and I'm getting 140 or so. Feel a little better. Got the plugs installed and its a lot better but still an intermittent miss, so next up is the wires and cap. The cap had a little tracking so the new one has the nice brass contacts. The wires on the car say Chrysler corporation on them. Perhaps original?
Perhaps they are original... but we can't see them.
Some plugs from the other bank.
Better test
Wires
Better test
Wires
The wires could be orig , or new repros like these
Moparwrench
Member
champions were made in mexico, just bought a fresh set for a 340 made in china now, I've been running NGKs for over 20 yrs now not switching until they turn to junk
So now the car has new carb, coil, wires, plugs, cap and rotor. Still the original orange box and ballast resistor. Looks like the plugs are doing better after 100 miles.
Thanks Geoff!
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The word hornswaggled gets me every time I think of it.
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