Cold Fouling 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=27914
Printed Date: 28 Feb 2025 at 4:16pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Cold Fouling Spark Plugs
Posted By: JayIN
Subject: Cold Fouling Spark Plugs
Date Posted: 25 Mar 2011 at 6:55am
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My old WD45 has never been rebuilt since it was new and often cold fouls a plug or two upon first start up, especially if it has been sitting a few weeks. Im sure that the compression is low in those fouling cylinders, but I dont really want to know if you know what I mean. Is there a plug of certain length or heat range that can help with this? I started it up last week to put the plow on to plow the garden and it did it again. Always happens when it is stone cold and never when it is hot. I need to weld new points on the plow this weekend. Thought I would put all new plugs in it, too. Any recommendations ? Thanks! Here's hoping for some dry weather! ------------- sometimes I walk out to my shop and look around and think "Who's the idiot that owns this place?" |
Replies:
Posted By: JayIN
Date Posted: 25 Mar 2011 at 2:14pm
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I thought someone said something about XL plugs on here once....... ------------- sometimes I walk out to my shop and look around and think "Who's the idiot that owns this place?" |
Posted By: CTuckerNWIL
Date Posted: 25 Mar 2011 at 2:44pm
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I had a similar problem with the CA after it sat in the shed for 10 years. I just went to the next hotter plug and never had the problem again.
------------- 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: Alberta Phil
Date Posted: 25 Mar 2011 at 3:05pm
| What plugs are you using now? Champions?? That could be the problem. Use Autolite 295 plugs and you should experience much less fouling. |
Posted By: Dans 7080
Date Posted: 25 Mar 2011 at 3:33pm
| I use AC-Delco R45S plugs in mine. Dads did that all the time we put "non-foulers" in it. It says on the package not to use them in over half of the cylinders. They fixed the ones that were fouling and the other 2 kept doing it so we put them on all cylinders and it runs fine. |
Posted By: mlpankey
Date Posted: 25 Mar 2011 at 7:36pm
if you run the 3/8 reach plug you essentially have a anti fouler already
look at the pictures plug hole.
 ------------- people if they don't already know it you can't tell them. quote yogi berra |