plugs and plug reading
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=20401
Printed Date: 09 Feb 2025 at 6:22pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: plugs and plug reading
Posted By: mlpankey
Subject: plugs and plug reading
Date Posted: 05 Nov 2010 at 2:20pm
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seams to be alot of questions about plugs . so i pulled this plug out of my puller . its the number 3 plug to give some a idea of what i think a plug should look like.
I blued the timing mark so it would show up in the picture . It will actually look to you as a faint blue line just like when you heat a piece of metal barwith a torch and it cools where the heat stops it draws a blue line this is the same on the plug. notice the metal body is colored all the way around and is not black and stops at the second thread. the actual fuel mark on the ceramic is up in the plug I will cut the metal body off to show it latter . Maybe it will show up in the pic.
 ------------- people if they don't already know it you can't tell them. quote yogi berra |
Replies:
Posted By: mlpankey
Date Posted: 05 Nov 2010 at 2:29pm
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to much timming moves the blue line down to the weld . not enough timming moves the line toward the end of the strap .Correct timing line should be in the appex of the 90. Always read plug at full throttle with no to verry little idle. ------------- people if they don't already know it you can't tell them. quote yogi berra |
Posted By: Dick L
Date Posted: 05 Nov 2010 at 2:58pm
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When it come to spark plugs I rely on my wife Dixie.
Three Saturdays ago I was trying to get my old chainsaw to run when she came out to call me to eat. She took one look at me yanking on the rope several and said its the spark plug. I said I checked it twice and it has good spark. She said it is always the spark plug come on in and eat. I went to tow the next day and bought a new spark plug and spent under two dollars and when I got home and put it in, it ran like a new saw.
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Posted By: mlpankey
Date Posted: 05 Nov 2010 at 2:59pm
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sound like she is a good mechanic ------------- people if they don't already know it you can't tell them. quote yogi berra |