AC 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=30158
Printed Date: 05 Mar 2025 at 10:16pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: AC Plugs
Posted By: Rich Steiner
Subject: AC Plugs
Date Posted: 03 May 2011 at 7:07am
|
I see a lot of information about spark plugs on here. I have been using Champion, but I want to try AC. So I went to my Tractor Supply store and they had Autolite 295 plugs. On the back of the box it says that they are good for "B, C, CA, G, 1B, RC, S, WC, WD, and so on. Sounds like these are the same as AC45's right? Any comments? Rich
|
Replies:
Posted By: Dusty MI
Date Posted: 03 May 2011 at 7:28am
|
I'm happy with the Autolite 295 plugs. Don't know about the AC-45's. Never used them. Dusty ------------- 917 H, '48 G, '65 D-10 series III "Allis Express" |
Posted By: Rich Steiner
Date Posted: 03 May 2011 at 7:34am
|
Thanks for the reply..... Rich
|
Posted By: John (C-IL)
Date Posted: 03 May 2011 at 7:36am
| I use Autolite 295, they have been a good plug for me. |
Posted By: BobHnwO
Date Posted: 03 May 2011 at 8:36am
|
Yup,295;s!
------------- Why do today what you can put off til tomorrow. |
Posted By: Burgie
Date Posted: 03 May 2011 at 8:44am
|
You can`t get plain AC 45`s, they only have the resister type (AC45R). ------------- "Burgie" |
Posted By: TedBuiskerN.IL.
Date Posted: 03 May 2011 at 9:01am
|
I've had problems with the Autolite's too and have gone back to Champions. I think it is the s--t gas we get now and not so much the plugs. ------------- Most problems can be solved with the proper application of high explosives. |
Posted By: CTuckerNWIL
Date Posted: 03 May 2011 at 9:08am
|
You might have something there Ted. Several years ago my Dad put new plugs in his old Ford pick up. He evidently flooded it trying to start it. After "fixing"everything else we thought could be wrong with it, we found out the plugs were varnished over and causing the rough running problem. ------------- 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: Dans 7080
Date Posted: 03 May 2011 at 11:48am
| Burgie, I have AC Delco R45S plugs in my WD45. Would that be a restistor type plug? |
Posted By: Brian Jasper co. Ia
Date Posted: 03 May 2011 at 11:53am
|
R in the R45 means resistor. ------------- "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 |
Posted By: Dans 7080
Date Posted: 03 May 2011 at 12:02pm
| Brian, thats what I was thinking. Ive always had good luck with them. I use AC Delco plugs on every gas motor I have. Ive never had good luck with Champion and have never tried Autolite. |
Posted By: Brian Jasper co. Ia
Date Posted: 03 May 2011 at 12:06pm
|
My personal experience is Champion plugs are better at being used as a fishing sinker than as a spark plug in an engine. ------------- "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 |
Posted By: Bill_MN
Date Posted: 03 May 2011 at 2:48pm
|
What were the factory plugs for a WD? I know the manuals, etc. always list different plugs and there are different cross-reference numbers. Did they use more than one type of plug or was there a single original type?
------------- 1951 WD #78283, 1918 Case 28x50 Thresher #76738, Case Centennial B 2x16 Plow |
Posted By: WEL(IN&TN)
Date Posted: 03 May 2011 at 2:51pm
| I have used Champion, AC and Autolite in most of my AC tractors. The Autolite 295 is the hands down winner but the ACs are also good. The Champion plugs are junk. |
Posted By: Dusty MI
Date Posted: 03 May 2011 at 2:54pm
Champion J-8 Put like someone said Champion took a noise dive in quality. I haven't used them in a long time. Dusty ------------- 917 H, '48 G, '65 D-10 series III "Allis Express" |
Bill_MN wrote:Posted By: Bill_MN
Date Posted: 03 May 2011 at 3:12pm
|
Yes champions are crap these days, use either AC or Autolite now. I was just curious what they used back then, I'm sure Champion was tops back in the 50s
------------- 1951 WD #78283, 1918 Case 28x50 Thresher #76738, Case Centennial B 2x16 Plow |
Posted By: Clay
Date Posted: 03 May 2011 at 3:30pm
|
Keep an eye out for AC45XL on Ebay and other auction sites. On occasion N.O.S. AC45XL plugs are offered. |
Posted By: Tedin NE-OH
Date Posted: 03 May 2011 at 3:56pm
| AC45XL What does the "XL" stand for? |
Posted By: Burgie
Date Posted: 03 May 2011 at 4:01pm
|
That is the long reach plugs. ------------- "Burgie" |
Posted By: Dave in il
Date Posted: 03 May 2011 at 4:06pm
|
Aren't AC45XL 3/4" reach for the late D17, I thought XL ment extra long?
I'm not sure if Champions were ever any good, we always used AC or Autolites. Dad used to say Champion didn't make sparkplugs they made trouble.
|
Posted By: dannyraddatz
Date Posted: 03 May 2011 at 7:20pm
Autolite Double Platinum Spark Plug
------------- Danny Raddatz |
|||||||||
Posted By: bluebanshee
Date Posted: 03 May 2011 at 7:32pm
|
^^Made me think about some platinum plugs. Unrelated to tractors but Jeep uses champion in a lot of their motors.. Just the regular copper plus plugs. Changed the plugs in a 2004 Jeep with 90k miles and not sure if they have been replaced before or not. They recommend replacement at 30k miles. The plugs were the worst I've ever seen for wear. The electrode was completely rounded and the gap had really increased. For 1.10 more than the copper plugs we got got autolite platinum ($3.49). Many OEM plugs are good for 100k miles. If the tractor was tuned well, wouldn't iridium plugs outlive the engine? |
Posted By: Bill Long
Date Posted: 03 May 2011 at 8:14pm
|
If I recall the new Allis Chalmers units we sold from 1935 - 1962 were delivered with Auto Light and Delco plugs. At that time span when we replaced plugs we preferred the Delco AC-45. As the engines began to wear and use oil we replaced with hotter plugs AC 47 and AC 48's
In fact we found at that time that the Auto Light plugs were inferior in performance to the AC's. At times we replaced original equipment Auto Lite with AC's to improve perfromance.
That was some 49 years ago. The reports I have heard on this site indicate that the preferred plug now is the Auto Light. In fact, my Good Friend Steve NJ Custom Ciircuits highly recommends Auto Lite.
Hope this is some help.
Good Luck!
Bill Long
|
Posted By: Rich Steiner
Date Posted: 04 May 2011 at 7:24am
|
Thanks so much for all your replies...... I'll let you know how I make out if it ever stops raining around here Rich
|
Posted By: HagerAC
Date Posted: 04 May 2011 at 9:44am
|
I always use autolite 303's, never a bit of trouble with them. I will not even lay hands on a champion, but don't mind AC delco's either.
------------- 30+ A-Cs ranging from a 1928 20-35, to a 1984 8070FWA, Gleaner R52 |
Posted By: Alberta Phil
Date Posted: 04 May 2011 at 10:09am
| I've got some Allis Chalmers plugs. They have the Allis logo on them and the number 9001653. They look like an AC plug otherwise. Anyone know if AC made these plugs for Allis? |
Posted By: Coke-in-MN
Date Posted: 04 May 2011 at 12:08pm
|
Here is a page to do conversions from one plug to other brands ..
Also gives the reach and type of tip on plug and gasket .
http://www.sparkplug-crossreference.com/convert/AC_DELCO/45/ - http://www.sparkplug-crossreference.com/convert/AC_DELCO/45/ ------------- Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something. "Challenges are what make life interesting; overcoming them is what makes life meaningful." |
Posted By: dave63
Date Posted: 04 May 2011 at 5:10pm
|
I have not had any luck with Champion plugs. And i have never had a problem with AC plugs if the engine is not pumping oil. If the engine is pumping oil none of them will last. I have run Autolite plugs in my trucks with no problem. ------------- The universal answer to all questions is yes, how much do you want to spend? |