D15 Spark Plugs
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=168190
Printed Date: 16 Nov 2024 at 11:42am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D15 Spark Plugs
Posted By: wildpaddle
Subject: D15 Spark Plugs
Date Posted: 09 Feb 2020 at 6:38pm
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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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Replies:
Posted By: DSeries4
Date 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.
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'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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Posted By: cottonpatch
Date Posted: 09 Feb 2020 at 7:40pm
I ran Autolite 85s in my D15. That’s what Autolite recommends.
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'52 CA, '61 D10 II, ‘61 D15, '66 D15II, '63 D17D III, ‘69 170, '73 185 Crop Hustler, '79 185, '79 7000, '77 7040
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Posted By: Boss Man
Date Posted: 09 Feb 2020 at 7:41pm
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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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Posted By: Alex09(WI)
Date 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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www.awtractor.com
A&W TRACTOR 920-598-1287
KEEPING ALLIS-CHALMERS IN THE FIELDS THROUGH THE 21ST CENTURY
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Posted By: wildpaddle
Date Posted: 09 Feb 2020 at 10:02pm
Thanks everyone, Unfortunately the owner passed away.
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Posted By: Steve in NJ
Date Posted: 10 Feb 2020 at 6:58am
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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
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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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Posted By: ACinSC
Date Posted: 10 Feb 2020 at 12:02pm
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Autolite 295 are what I'm running in my 1961 D 15 also . Got them from Steve . 🙂
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Posted By: Brian Jasper co. Ia
Date 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.
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"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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Posted By: Ken McGregor
Date Posted: 15 Feb 2020 at 9:41am
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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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Posted By: ac fleet
Date 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.
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http://machinebuildersnetwork.com/
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