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Allis Chalmers Discussion Forum
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Recomended plugs for B

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Hossman

05-15-2007 20:07:00




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Fellas, I am tuning up the lil' B and was wonderin what sparkplugs to use? Autolite 295's?Or the 303's? Thanks, Hoss




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Kent of SWMO

05-17-2007 07:21:00




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 Re: Recomended plugs for B in reply to Hossman, 05-15-2007 20:07:00  
The AC-45 plug acan also be replaced by the Champion J-8C, CJ-8, J-17LM, RJ-17LM, J-19LM and RJ-19LM. All common Lawn and Garden plugs. I know there are Many Champion haters out there but this is about the only brand plug I use and I HAVE NOT had any of the issue the Champion haters talk about. Also someone may say you should not use the R, resistor, plugs on a magneto BUT Most Small engines ARE magneto ignition and they come from the factory with resitor plugs.

Kent

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Brian Ahart (MO)

05-16-2007 10:16:21




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 Re: Recomended plugs for B in reply to Hossman, 05-15-2007 20:07:00  
I"ll concur with the others. I installed a set of 295"s in my "39 B some time back. After having multiple plugs foul, I installed some NOS AC45 plugs and it"s ran smooth ever since. Granted the engine on that particular unit needs an overhaul, but my point is the 45 plugs have not fouled. Best of luck.



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Butch(OH)

05-16-2007 05:48:26




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 Re: Recomended plugs for B in reply to Hossman, 05-15-2007 20:07:00  
Magneto ignition 295. Battery ignition 303.

The way some complain about plugs a person would think they cost $679 each. I buy the 295s when they are on sale at Advance Auto (often) for a the big sum of $1 per each. On our user tractors I change then a couple times a year, needed or not and pitch the old ones a the trash barrel witout a second thought. Rod has it about right, I think there is less real differance between brands than urban legend and lore. I have even had my A-C running on (sit down now folks) Champion J-8. I just didnt tell anyone and the tractor didnt seem to know the differance, LOL.

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Dick L

05-16-2007 07:25:14




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 Re: Recomended plugs for B in reply to Butch(OH), 05-16-2007 05:48:26  
Same here Butch. I have had as many 295"s give out as J-8"s in recent times. Champion went thru some bad quality time for what ever reason but it seems to have been solved.



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1755

05-20-2007 12:57:53




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 Re: Recomended plugs for B in reply to Dick L, 05-16-2007 07:25:14  
Be shur to get the newest book you can to get the updated plugs to go in there set to run on todays gas



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1755

05-20-2007 12:57:29




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 Re: Recomended plugs for B in reply to Dick L, 05-16-2007 07:25:14  
Be shur to get the newest book you can to get the updated plugs to go in there set to run on todays gas



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Rod (NH)

05-16-2007 05:24:15




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 Re: Recomended plugs for B in reply to Hossman, 05-15-2007 20:07:00  
Hi Hoss,

I use NGK B4 in my '42B. I've used those ever since AC stopped marketing the AC45 years ago, which was originally used. The NGK B4 is a direct replacement for the AC45. I don't know how the current Autolite buzz came about. It seems to have taken on the characteristic of an urban legend. The Autolite295 does, indeed directly replace the AC45 but the 303 does not. I've used the Autolite 295 also but have not found it to be any better (or worse) than the NGK B4. The NGK B4 is more readily available locally than the Autolite 295 so I stick with the NGK.

third party image Rod

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