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kearly 
Bronze Level
Joined: 09 Feb 2024
Location: Harrisonburg,VA
Points: 2
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 Topic: Allis Chalmers B Plug wire
Posted: 09 Feb 2024 at 8:59pm |
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My "new" B runs very rough. I will change the plugs but wonder if the plug wires are going to the correct plug. Anyone have a diagram? Thanks
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DiyDave
Orange Level Access
Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 51666
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Posted: 10 Feb 2024 at 4:38am |
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1243 clockwise from above...
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Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need!
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DSeries4
Orange Level
Joined: 12 Sep 2009
Location: Ontario, Canada
Points: 7332
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Posted: 10 Feb 2024 at 9:50am |
Plugs and wires are only half of the ignition system. Might not solve your problem. Might as well replace distributor cap, rotor, points and condenser at the same time.
Rough running can also be a fuel issue. Also recommend getting your carb cleaned/rebuilt, as well as cleaning out the gas tank and putting a new screen in the sediment bowl.
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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '61 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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Steve in NJ
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Joined: 12 Sep 2009
Location: Andover, NJ
Points: 11791
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Posted: 10 Feb 2024 at 3:13pm |
A rough running engine could mean anything from needing a full tune-up to a tight or bad valve. If it happens to have Champion plugs in it, that could be your problem. Take them out and throw em' away and put a real set of sparklers in there like Autolites, AC's or NGK's. Autolite 295's can be used with worn engines. Autolite 303's can be used with a new rebuilt engine. If Magneto equipped, use solid core wires with 295 Autolites. If you need any tune-up parts or wires, visit our website. We can help ya out..... Steve@B&B bb-customcircuits.com
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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 81092
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Posted: 10 Feb 2024 at 6:38pm |
#1 is front by the radiator.... wire on Mag is at 11 o'clock ......#2 is at 2 o'clock ....#4 is at 5 o'clock .... #3 is at 8 o'clock ......... 1 - 2 - 4 -3
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Edited by steve(ill) - 10 Feb 2024 at 6:39pm
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Like them all, but love the "B"s.
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