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I once tried, unsuccessfully, to assist a fellow 300’er with intermittent misfiring 413 that eventually quit altogether. Eventually, it was found to be a looseness at one of the tiny screws or hex nuts connecting the two point sets. I understand that little wire can also fail—totally or partially. Can be hard to diagnose.. Head-slapper when found. Everything can fail—capacitors, wiring, coil, dropping resistor and any connection—including the bulkhead connector. Fire must come from the ignition switch.. Rich Barber Brentwood, CA-Endless summer here. From: Chrysler300@xxxxxxxxxxxxxxx <Chrysler300@xxxxxxxxxxxxxxx> On Behalf Of doug warrener 2HsandaHeritage@xxxxxxxxxxx [Chrysler300] Hi Group, I need some expert input on my 62 sport conv misfiring or "stumbling". The car has the standard 413 and I have added the dual AFB's and a dual point distributor. One year ago driving to and from the Ironstone Concours in Murphys, CA ( about 80 miles away) I experienced severe misfiring. Pulled all the plugs and found #2, #6 & #7 fouled with carbon deposits ( #2 by far the worst). Replaced the plugs and thought the problem was solved. This year, drove to local shows and around my neighborhood with no problems. The trip to the Ironstone Concours this year resulted in the same misfiring problem. Pulled all the plugs and only #2 had any carbon deposits. Checked the compression and all cylinders at 150 +/-. Checked and set point gaps, replaced the wire to #2 plug. The engine runs ok with no load, but still misfires or "stumbles under load and at high speed. The new plugs that I installed last year are Autolite A42B's which I believe are correct. However they may be 30years old or older. The cap and rotor are only a year or two old. Could a defective coil cause the problem? Thanks, Doug Warrener __._,_.___ Posted by: "Rich Barber" <c300@xxxxxxx> To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to https://groups.yahoo.com/neo/groups/all/manage/edit For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang __,_._,___ |
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