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CA Spark Plugs

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Brian

05-02-2002 16:50:57




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I have a CA Allis and I put new spark plugs in and now it misses. If I pull the plug wire off alittle bit so that it gaps it will run OK till it is on load and then it misses again. I put Champion in and took a different brand out. Is there something wrong with Champion plugs? I thru the old onmes away so I can't check them out. Any ideas? Brian




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greg

05-03-2002 09:12:55




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 Re: CA Spark Plugs in reply to Brian, 05-02-2002 16:50:57  
Brian, are you sure you didnt get 2 plug wires
crossed? check the firing order to be sure.
if that is correct, pull the plug you suspect to
be bad, and stick it in a different hole to see
if you have a defective plug. Make sure one of the
plug gaps didnt get closed up. good luck



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Bryan Smith

05-03-2002 08:18:02




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 Re: CA Spark Plugs in reply to Brian, 05-02-2002 16:50:57  
I've used Champion J-8, AC 45, AC R45, and Autolite 303 spark plugs in my CA and other 6 volt tractors and vehicles on the farm. Autolites seem to run the best in my CA and they sure make the B we bought this spring run sweet (haven't tried them in the WD45 yet). My old Willys jeep (with 12 volt conversion) runs good with them too - it also called for that same spark plug. Champions seem to run the worst (and don't last long). AC's did pretty well but I think the AC R45 is no longer available (think the substitute is an AC R46 now) and the AC 45 has been out of production for a while.

I've been told an Autolite 295 (non-resistor) is for a magneto ignition tractor (but can be used with battery ignition) and an Autolite 303 (resistor-type) is for battery ignition. Your CA probably has battery ignition - you could use fiber-core plug wires if you needed to. ONLY use copper-core wires for magnetos and it's probably a good idea to use them on any 6 volt system (I use copper-core on my 6 volt stuff - I get them from NAPA here. The local CarQuest doesn't carry them). 12 volt converted tractors seem to use the fiber-core wires with no problem.

I've also had a bad Champion and a bad AC plug straight out of the box. When you pull the plug wire slightly off you're increasing the voltage potential before the plug fires (longer effective gap) and so it fires - had the same problem on an air-cooled engine once that turned out to be burned points. The spark plug must be faulty in the inside somewhere.

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Mike (Oh)

05-03-2002 12:15:25




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 Re: Re: CA Spark Plugs in reply to Bryan Smith, 05-03-2002 08:18:02  
Ok you got me to thinking about the difference between the autolite 295 and 303 plugs. My CA has a mag and I just got 303's for it. I just called the dealer and they told me they did not believe the 303's are a resistor plug. I tried searching for autolite on the web but found no information on these plugs. More than once though I have seen it referenced that 295's should be used if mag and 303's if bat ignition. Does anybody know for sure if the 303's are resistor or non-resistor?

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Bryan Smith

05-03-2002 12:52:29




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 Re: Re: Re: CA Spark Plugs in reply to Mike (Oh), 05-03-2002 12:15:25  
I was told by "someone who is supposed to know" that the 303 is a resistor-type and the 295 is not, but I'm not sure of that. As long as they work good in your application ....! ;-)



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joe in IOWA

05-03-2002 03:53:09




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 Re: CA Spark Plugs in reply to Brian, 05-02-2002 16:50:57  
I agree...champion spark plugs suck! I personally have had lots of bad luck with them in small engines and tractors. Also check your shop manual for the EXACT gap setting. I was off a few thoundanths off on a set of autolites in my WD and it ran like crap till I gapped the plugs again then it purred like its old self.



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Mike(Oh)

05-02-2002 21:48:55




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 Re: CA Spark Plugs in reply to Brian, 05-02-2002 16:50:57  
It seems that Autolite 303 is recomended by dealers or 295 for a hotter spark. If you cant find em locally call Sandy Lake Implement at 724-376-2489 ($2.79 a plug) and it will be there in a day or 2. I have nothing to do with these people but order stuff from them and they have always been good on price and great on service.



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Eldon (WA)

05-03-2002 08:51:36




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 Re: Re: CA Spark Plugs in reply to Mike(Oh), 05-02-2002 21:48:55  

I just bought some Autolite 303's at NAPA yesterday for $1.09 each.



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Mike(Oh)

05-03-2002 12:26:24




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 Re: Re: Re: CA Spark Plugs in reply to Eldon (WA), 05-03-2002 08:51:36  
Yea, thanks for rubbing it in Eldon. Hey I was on the phone, needed plugs and not sure if the local stores around me had em. Good thing it only takes 4. Maybe they are better autolite plugs than NAPA sells - at least thats what I am telling myself.



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steve

05-02-2002 19:35:12




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 Re: CA Spark Plugs in reply to Brian, 05-02-2002 16:50:57  
some tractor will run on anything, others seem to be a bit picky, especially if they have a magnito. best to use AC45 and copper core wires, not the new carbon fiber.



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Steve in N.J.

05-02-2002 18:19:23




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 Re: CA Spark Plugs in reply to Brian, 05-02-2002 16:50:57  
Brian,
Yeah, the problem with Champion's is they stink! They sure don't make em' the way they used too. I installed NGK's in my B and she doesn't miss a beat. I believe you can use AC Delco 45's also. The NGK # is a B6ES. Some folks swear by Champion's but they never worked for me nor a lot of my customers...Hope this helps. Steve



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