D17 spark plug
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=54866
Printed Date: 05 Oct 2025 at 10:52pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D17 spark plug
Posted By: VF Farms
Subject: D17 spark plug
Date Posted: 06 Aug 2012 at 9:11pm
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Do series 3 D17's take a longer threaded spark plug than earlier models? Aaron ------------- 3-8550,7580,8070,8030,7010,7000,210,2-D21,2-D19,4-D17,wd's and wc's and old farm equipment |
Replies:
Posted By: DanD
Date Posted: 06 Aug 2012 at 10:26pm
| Yes. The early D17's took the 3/8" plug, while newer D17's (including the Series III) took the 3/4" plug. I don't recall when exactly the change was made, but I can guarantee you that the Series III took the longer plug (assuming no one has ever changed heads or engines or something along those lines). The shorter plugs are AC 45 or Autolite 295. The longer plugs are AC 45XL or Autolite 64. |
Posted By: SteveM C/IL
Date Posted: 06 Aug 2012 at 11:37pm
| You can peek in the hole and see the thread length. It's obvious. |
Posted By: VF Farms
Date Posted: 07 Aug 2012 at 6:52am
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Alright thanks DanD and Steve it's much appreciated. Just wasn't sure beacuse we had a early D17 and it had the shorter threaded plugs but thanks again ------------- 3-8550,7580,8070,8030,7010,7000,210,2-D21,2-D19,4-D17,wd's and wc's and old farm equipment |
Posted By: Butch(OH)
Date Posted: 07 Aug 2012 at 7:24am
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The standard version of the 64 power tip plug is the 404. It is usualy easier to find in stock. Our WD has a '17 head and we have been running the next hotter #405 Autolites in it for a long time. They work very well for our use which is mostly pretty light work. |
Posted By: mlpankey
Date Posted: 07 Aug 2012 at 2:39pm
------------- people if they don't already know it you can't tell them. quote yogi berra |
Butch(OH) wrote:Posted By: CTuckerNWIL
Date Posted: 07 Aug 2012 at 3:31pm
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Mitch, is it hard to stand up on one foot all the time? Maybe you're getting used to it since you have one foot in your mouth all the time. Butch said he does mostly LIGHT work with the WD and the plugs he uses work fine for that.
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: jlogli
Date Posted: 07 Aug 2012 at 6:31pm
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I think the series I had the short plugs. My series II has the longer ones. ------------- 1945 WC on full steel, WD wide front, WD45 power steering, 1966 D-17IVfactory 3 point.1967 D-17IV SC. 1973 rotobaler white top. orange top roto, model 90 combine,82S, four bottom plow.302 baler. |