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Brinky 
Bronze Level
Joined: 30 Aug 2024
Location: Uk
Points: 30
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 Topic: Plugs
Posted: Yesterday at 8:49am |
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After having my starter and magneto rebuilt, the Allis b finally is starting much better but occasionally she doesn’t want to play. I have NGK BP2HS plugs that were fitted before I got her. Is there a better plug ? I have read of others that aren’t available in the uk
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DSeries4
Orange Level
Joined: 12 Sep 2009
Location: Ontario, Canada
Points: 7493
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Posted: 6 hours 37 minutes ago at 9:27am |
NGK have good plugs. I use them in several of my tractors. Before switching the plugs, I would be looking at the rest of the ignition system. Also make sure there are no obstructions in your fuel system.
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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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Ky.Allis
Orange Level
Joined: 31 Jan 2010
Location: Kentucky
Points: 1029
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Posted: 6 hours 33 minutes ago at 9:31am |
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Just watched a Y-Tube video about "Fake/Counterfeit" NGK plugs on Amazon. Might be true/might not. Buyer beware. I just got some from Rock Auto for my truck. They appear to be the real thing.
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 87548
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Posted: 6 hours 18 minutes ago at 9:46am |
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NGK 3210 or B4..
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Like them all, but love the "B"s.
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Brinky
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Joined: 30 Aug 2024
Location: Uk
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Posted: 6 hours 18 minutes ago at 9:46am |
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I have recently cleaned out the fuel system, I only have a battery , starter and magneto
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Phil48ACWC
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Joined: 17 Jan 2013
Location: Vermont
Points: 305
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Posted: 3 hours 34 minutes ago at 12:30pm |
The best plug I've found for my WC, which would work just fine in your B, is NGK Iridium part # XR4IX, Stock # 7189 from Rock Auto. They have the best price and they are not cheap knock offs or imitations like you may see on eBay. BUT, before you continue with things mentioned above, do a real good valve adjustment. These engines are solid lifter engines and need occasional valve adjustment. Chances are those valves haven't been adjusted in many many years. Out of adjustment valves can cause starting issues.
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PaulB
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 5083
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Posted: 3 hours 15 minutes ago at 12:49pm |
I also agree NGK are great plugs. However BP2HS would not be a correct plug to use. This plug is a hot plug with a projected insulator type. this would lead me to believe that it was fouling plus or maybe that's just what the person had lying around. The Factory plug would be an AC45, which is a NON RESISTOR plug that you need to work properly with a magneto. The correct cross to a NGK is a B4 stock #3210
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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Brinky
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Joined: 30 Aug 2024
Location: Uk
Points: 30
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Posted: 2 hours 6 minutes ago at 1:58pm |
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Thanks for all the info
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