WD 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=31909
Printed Date: 28 Sep 2024 at 8:08pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WD spark plugs
Posted By: Ryan Renko
Subject: WD spark plugs
Date Posted: 07 Jun 2011 at 9:06pm
| Its been covered many times before but I'm thinking my Allis Chalmers people can help us out. Whats the best spark plug to use?? I remember to avoid champion!! The ol gal could use some new plugs on her 61st birthday. Ryan |
Replies:
Posted By: Dipstick In
Date Posted: 07 Jun 2011 at 9:13pm
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Marion Klutzke told me AC LM 49's. They sure work in my 49 WD that was last overhauled in 65 when I got out of the army!!!!! ------------- You don't really have to be smart if you know who is! |
Posted By: Bertman
Date Posted: 07 Jun 2011 at 9:18pm
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AC 45 or R45 ------------- 50 B 38? WC 41 C 50 WD 55 WD-45 49 M-M UTU coming soon Massey 44 and a unstyled WC |
Posted By: Tedin NE-OH
Date Posted: 07 Jun 2011 at 9:25pm
| If it has a magneto do not use a resistor plug like R45 as over time it may damage the mag. |
Posted By: Ryan Renko
Date Posted: 07 Jun 2011 at 9:29pm
| Its got a distributor on it. Once again, thanks for all your input!! The ol gal needs alittle tune up!! |
Posted By: Alberta Phil
Date Posted: 07 Jun 2011 at 9:52pm
| I've been real happy with the Autolite 295's. They seem to work the best in my hard workin' WD!! |
Posted By: Ryan Renko
Date Posted: 07 Jun 2011 at 9:56pm
| You figure a tractor this old that was purchased new on our farm deserves to be treated great in her golden years!! LOL |
Posted By: Bill Long
Date Posted: 07 Jun 2011 at 9:58pm
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When we sold them we liked AC 45, AC 47, and AC 48, depending on the condition of the engine. That said reports - expecially from SteveNJ - indicate that the Auto Light plugs are now the best. Good Luck! Bill Long
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Posted By: se iowa picker
Date Posted: 07 Jun 2011 at 10:01pm
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I have had good luck with autolight and ac but then I never really had that much trouble with champion.We ran them on this farm since grandpa was farming in the 40s and never had that much trouble with them. Sometimes its just personal opinion as much as anything. |
Posted By: Steve in NJ
Date Posted: 07 Jun 2011 at 11:01pm
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Its preference actually. Some folks have never had problems with Champions. I never had any luck with Champs personally. Why? Who knows. AC, NGK's and of coarse Autolites work well. Tried these three brands in my machines and they all worked well. We sell Autolites, and have all the ranges for AC applications. The 295's work great in rebuilt engines, as well as a worn engine. The 295 plug is just a little warmer, and can be used in either Distributor fired, or Mag fired engines.... HTH Steve@B&B |
Posted By: Ryan Renko
Date Posted: 07 Jun 2011 at 11:11pm
| Its a great tractor and has M&W pistons in it. Will that affect the plug choice?? Ryan |
Posted By: DaveKamp
Date Posted: 07 Jun 2011 at 11:32pm
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I never used to think it was anything other than preference, until I had a Champion spit the center ceramic right out of the sleeve... and when I started asking around, without offering the brand name, everyone said "Champions do that". They followed with notes about the crimps on the collars being lousy... they said "Spray a little light oil on the crimp while it's running- you'll see it bubble- it's leaking compression". And they were right. I checked my mowers, my motorcycles, my cars, and my boats. Only ones that generated bubbles... were Champions. Unfortunately, the engine that had the crimp failure, not all of the ceramic made it out of the cylinder... a chip broke off, and fell into the #1 cylinder, jammed between piston and wall, stuck the ring, and scored the cylinder beyond repair. Lesson learned, tuition paid. |
Posted By: HagerAC
Date Posted: 07 Jun 2011 at 11:48pm
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Have very little trouble with autolite 303 here.
------------- 30+ A-Cs ranging from a 1928 20-35, to a 1984 8070FWA, Gleaner R52 |
Posted By: Dans 7080
Date Posted: 08 Jun 2011 at 12:22am
| AC-Delco R45S are the only thing I run. |
Posted By: Steve in NJ
Date Posted: 08 Jun 2011 at 6:54am
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The 303's work well also. No problem with them. They are just a fuzz colder in the heat range catagory. The resistor plugs are fine in non-Mag fired engines. Keeps the nieghbor's TV sets from going bonkers. I have resistor wires and plugs on the IB so it doesn't bother the neighbor's TV when I'm moving the property, but of coarse, that's Distributor fired. Runs fine...
mailto:Steve@B&B - Steve@B&B
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Posted By: Orange Tractors
Date Posted: 08 Jun 2011 at 11:00pm
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I have tried most of the recommended sparkplugs in my WD. Granted mine desperately needs another overhaul, but I only use it twenty or thirty hours a year.
The only ones that I have found that do not foul out with oil are the NGK equivelant to the Champion J-8. I am running a distributor until I can get the mag rebuilt.
Robert
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Posted By: Slowmotion
Date Posted: 07 Apr 2019 at 1:54pm
| The plugs in my WD appear to take a socket slightly larger than 13/16. A 21mm will go over, but a bit loosely. I've been trying to find the socket size for the plugs that have been discussed, but I don't see it anywhere. |
Posted By: Dusty MI
Date Posted: 07 Apr 2019 at 2:01pm
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The Champion J-8 was a good plug until around 1970. What caused them to go down hill, I don't know. ------------- 917 H, '48 G, '65 D-10 series III "Allis Express" |
Posted By: DougS
Date Posted: 07 Apr 2019 at 2:44pm
That's a resistor plug. Nothing at all wrong with that unless you are using a magneto. |
Dans 7080 wrote:Posted By: EPALLIS
Date Posted: 07 Apr 2019 at 7:19pm
| Used AC 45 for 30 years. Never encountered any issue of any kind.... |
Posted By: DougS
Date Posted: 07 Apr 2019 at 8:51pm
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AC45 is not the same as an R45. Any plug of any manufacturer that I'm aware of with an R in the part number is a resistor plug. It's no problem with battery ignition. I'd use nothing but resistor plugs and suppressor wires with electronic ignition, but resistor plugs can cause arching within the magneto in magneto systems. |