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D15 Spark Plugs

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wildpaddle View Drop Down
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Joined: 01 Feb 2020
Location: Imbler, Oregon
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wildpaddle Quote  Post ReplyReply Direct Link To This Post Topic: D15 Spark Plugs
    Posted: 09 Feb 2020 at 6:38pm
Recently purchased a 1961 D15 that is running fine. I was going to replace the spark plugs but when I removed one it was not the ones recommended in the manual (Autolite 86). The manual says either AL A-7, Champion J-8, or A.C. 45. Neither of these cross over to an AL 86. Are these AL86 better or is there some reason they were used instead of the ones recommended in the manual?
Thanks
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DSeries4 View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote DSeries4 Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2020 at 7:35pm
Talk to the previous owner who put it in.  A couple of years ago I bought a D17 with 4 different brands and models of plugs.  Go ahead and replace all 4 plugs with one of those models stated in the manual.
'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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cottonpatch View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cottonpatch Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2020 at 7:40pm
I ran Autolite 85s in my D15. Thatโ€™s what Autolite recommends.
'52 CA, '61 D10 II, โ€˜61 D15, '66 D15II, '63 D17D III, โ€˜69 170, '73 185 Crop Hustler, '79 185, '79 7000, '77 7040
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Boss Man View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Boss Man Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2020 at 7:41pm
I've only used Autolite in farm tractors the last 27 years. Had to many problems with Champion. AC is a good plug but was more expensive from my vendors
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Alex09(WI) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Alex09(WI) Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2020 at 8:25pm
Champion J-8 might cross to Autolite 295, thats what I use in a D15 gas
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wildpaddle View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wildpaddle Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2020 at 10:02pm
Thanks everyone, Unfortunately the owner passed away.


Edited by wildpaddle - 09 Feb 2020 at 10:03pm
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Steve in NJ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve in NJ Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2020 at 6:58am
295 is the crossover to a J8.  Definitely not an equivalent because Autolite's actually work where Chimpanze's don't.  LOL!   
Steve@B&B
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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ACinSC View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2020 at 12:02pm
Autolite 295 are what I'm running in my 1961 D 15 also . Got them from Steve . ๐Ÿ™‚
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Brian Jasper co. Ia View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian Jasper co. Ia Quote  Post ReplyReply Direct Link To This Post Posted: 14 Feb 2020 at 10:59pm
Back in that time frame Autolite was part of Ford. Autolite A7 became the Motorcraft A7C after Ford sold off Autolite. 
"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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Ken McGregor View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Ken McGregor Quote  Post ReplyReply Direct Link To This Post Posted: 15 Feb 2020 at 9:41am
For what it's worth, I had a problem with my WD45 and couldn't get ANY plugs to stay working in it. I tried the AC 45C the Autolite 295, etc., etc. and finally tried the NKG equivalent....can't remember the number off hand but the tractor has performed flawlessly for over a year of working . Needless to say, I won't go back to the standard plugs any time soon

regards,
Ken McGregor
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ac fleet View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ac fleet Quote  Post ReplyReply Direct Link To This Post Posted: 15 Feb 2020 at 11:15am
I have had NGK brand in several engines,---they seam o.k. --first encounter with them was in my 3-wheeler and dirt bike. They held up to that hard use well.
http://machinebuildersnetwork.com/
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