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D15 Plugs - PLEASE HELP
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D16Allis View Drop Down
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Joined: 04 Nov 2009
Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote D16Allis Quote  Post ReplyReply Direct Link To This Post Topic: D15 Plugs - PLEASE HELP
    Posted: 17 Mar 2012 at 11:27am
I have a D15 engine in my D14 and need to put a new set of plugs in.  The parts store NAPA told me that some D15s need a protruded plug to fire correctly.  He gave me the short ones because if I was to use the longer ones it could hurt the pistons.  The block has a number 0G6T on it.  Not sure where to look on the head if there is a number that would be on there.  If any one knows what ones to use or how to know PLEASE HELP!
 
THANKS,
 
RB
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Chalmersbob View Drop Down
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Joined: 11 Sep 2009
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Points: 2122 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Chalmersbob Quote  Post ReplyReply Direct Link To This Post Posted: 17 Mar 2012 at 9:29pm
Look on the side of the engine behind the carb for the serial #. It will tell you which engine you have. The D14 and early D15 both had a 149 cu in engine and took the same plug AC 295's or Champion J-8. they have 3/8" reach. If you have a 160 cu in engine, I'm not sure which plug to use. Bob
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Points: 912 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Kip-Utah Quote  Post ReplyReply Direct Link To This Post Posted: 17 Mar 2012 at 9:35pm
That would be Autolite 295s. AC would be 45s or 47s. Kip
HANSEN'S OLD ORANGE IRON. Showing, Pulling, & Going!!
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Points: 7499 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DSeries4 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Mar 2012 at 11:21pm
Autolite 295s work for both.
'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 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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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21866 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 2012 at 6:11am
Your Parts Store is wrong.....no model D15 ever used anything any longer than a 3/8" length spark plug.
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Stan IL&TN View Drop Down
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Points: 6730 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Stan IL&TN Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 2012 at 6:41am
Can't you just remove one and take it to the parts store to match it up? 
1957 WD45 dad's first AC

1968 one-seventy

1956 F40 Ferguson
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