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ogeechee 
Bronze Level
Joined: 30 Oct 2015
Location: Richmond Hill G
Points: 32
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 Topic: Allis G Spark Plug Problem
Posted: 14 Nov 2015 at 1:25am |
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The Manual calls for an AC 45 plug. Is that the same as an AC R45? I appreciate your response. Dan
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Burgie
Orange Level
Joined: 13 Sep 2009
Location: Scottsburg, IN
Points: 1192
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Posted: 14 Nov 2015 at 4:45am |
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That is the replacement.
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"Burgie"
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jaybmiller
Orange Level Access
Joined: 12 Sep 2009
Location: Greensville,Ont
Points: 24704
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Posted: 14 Nov 2015 at 6:11am |
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I'm 'thinking' the R means it has a built in resistor for noise suppression ??
Be nice to KNOW though.....
Jay
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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Steve in NJ
Orange Level Access
Joined: 12 Sep 2009
Location: Andover, NJ
Points: 12000
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Posted: 14 Nov 2015 at 6:15am |
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The "R" stands for a Resistor plug. Although it probably wouldn't hurt the ignition system any because its a Distributor, the plug that works quite well in a G model w/Continental is the Autolite 295's. As a matter of fact, the Autolite 295's work good in a lot of the older AC machines. The Autolite 303 is an optional plug, and is a fuzz colder than the 295. Worn engines work better with the 295's mainly because its a little hotter plug... HTH
Steve@B&B
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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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ac45dave
Orange Level Access
Joined: 23 May 2015
Location: SE(IN)
Points: 1346
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Posted: 14 Nov 2015 at 8:24am |
Iv'e found this to be helpful. autolite application look-up
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54 wd-45gas ; 56 wd-45d N/F w/fact p/s ; 63 d-17 sIII N/F gas ; 60 D14 N/F ; 67 d-17 sIV N/F gas ; 63D15 sII W/F; 39rc#667 ; 2021 massey 4710 fwa ; gravely 2 wheel tractors
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Bill Long
Orange Level
Joined: 12 Sep 2009
Location: Bel Air, MD
Points: 4556
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Posted: 14 Nov 2015 at 10:09am |
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When we sold them we lived with the AC-45, AC-47, and AC-48, depending on how "hot" a plug you needed - we used the AC-48's in the older machines.
However, that was in the 40's 50's and very early 60's. In today's market I have heard very interesting reports that the AC plugs are not all that good.
Listen to what my friend SteveNJ says. He is our on line electrical expert and knows from deep experience. I would fully rely on him.
Take good care of your G. You have a Classic Allis Chalmers tractor. The best plowing tractor I sold.
Good Luck!
Bill Long
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ogeechee
Bronze Level
Joined: 30 Oct 2015
Location: Richmond Hill G
Points: 32
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Posted: 14 Nov 2015 at 11:58am |
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I appreciate all of your responses and thanks for taking the time to answer my questions. Autolite 295s ordered.
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