| really good suggestion ! I forgot about all that . new ones are truly junk if they have a black robber cone on end , a stamped in X or stamped line on other end . It is supposed to hold aluminum foil against the aluminum case inside by pressing in . The design is a sad brutally incompetent joke. Gets intermittent contact due to aluminum oxide .You can’t touch aluminum together and expect a connection Skip , poor running comes and goes . Hard start etc . This drove me crazy for years , finally one day I had exact same issue on Kohler flat twin emergency plant , sometimes no start . . After cutting one open —— that one day it tested good another day bad , (open) i saw where it had been arcing , not even sealed . I’d say good for under a year ,total junk . I got so into it big time ; I mounted panasonic radio quality capacitors instead , .27 uF 630V as you can’t find good automotive ones .All about making it in China for 5 cents. The Panasonic are epoxy sealed , Japanese quality control . By the way , all interchange . People routinely throw out really good old mopar hermetically sealed ones with the copper strap , replace with chinese junk with the rubber cone. Private branded , as part of “ tune up “ Check cap with highest scale ohmmeter analog , needle swings up settles at infinity it is good don’t change out as “ part of time up” unless bad . I have never seen a bad mopar with copper strap ,or blue streak with strap either . watch for them on ebay , I found 10 one time . Failing to understand this leads to changing plug wires plugs and coil , each makes it better for a month , as spark is on edge weak (sometimes ) due to poor contact inside the cap Sent from my iPhone On Aug 11, 2023, at 8:25 AM, 'John Cote' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:
Try changing just the condenser in distributor. Same symptoms you have. Worked for me and ran without stumbles after changing. Easy to try before going down rabbit hole. 🤔 Sent from my iPhone On Aug 10, 2023, at 7:16 PM, Justin I <captjj28@xxxxxxxxxxx> wrote:
I am still having the opposite problem: stumbling with throttle input from any speed. Distributor/timing, fuel... all gone over. Wondering if it could be slack in timing chain... ? Maybe the harmonic balancer has slipped and is no longer reading accurate
time, but runs nice once the stumbling clears.
Hard starts when warm, but I think that's just heat soak; not necessarily a related issue.
-Justin
From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx> on behalf of ridgleyracing65 <ridgleyracing65@xxxxxxxxx>
Sent: Sunday, August 6, 2023 6:46 PM
To: Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: Re: {Chrysler 300} Re: 300B Stumbling at 60+ MPH
Brian:
If you know the exhaust is good, then I am back with the other members pointing toward a fuel supply issue.
Dyke Ridgley
On Sunday, August 6, 2023 at 5:08:56 PM UTC-5 bwalk05 wrote:
Hi Dyke
The exhaust & mufflers were some of the first things I replaced. So both are brand new.
From: chrysler-300-cl...@xxxxxxxxxxxxxxxx <chrysler-300-cl...@xxxxxxxxxxxxxxxx> on behalf of ridgleyracing65 <ridgley...@xxxxxxxxx>
Sent: Sunday, August 6, 2023 2:44:39 PM
To: Chrysler 300 Club International <chrysler-300-cl...@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} Re: 300B Stumbling at 60+ MPH
This has all the indications of a partially plugged exhaust system. How old is the exhaust and mufflers? Car idles and runs great up to the point the exhaust restriction just stops the performance. I have seen this exact same thing before.
Dyke Ridgley
On Saturday, August 5, 2023 at 11:15:03 AM UTC-5 bwalk05 wrote:
Hello Everyone,
Anyone have any suggestions for troubleshooting Carter adjustments (or otherwise) for a car that stumbles beyond 60 mph. It starts up fine, idles smooth, accelerates strong up to 60 mph and then stumbles...even at fully open throttle.
I suspect there is an accelerator pump issue or secondary is not opening under vacuum. Any thoughts/suggestions would be greatly appreciated!
Thanks,
Brian W.
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