Spark Plug Socket Size?

   / Spark Plug Socket Size? #1  

vern6973

New member
Joined
Jul 12, 2009
Messages
19
Location
Bloomington, Illinois
Tractor
J.D. 3120, X584, GT235 and a IH 606
Hello:

Does anyone know what size socket the spark plugs take on a International 460 tractor. It's a 221 cubic inch 6 cylinder engine. My 13/16 is too small.

Thanks:

Vern From Illinois
 
   / Spark Plug Socket Size? #2  
Hello:

Does anyone know what size socket the spark plugs take on a International 460 tractor. It's a 221 cubic inch 6 cylinder engine. My 13/16 is too small.

Thanks:

Vern From Illinois

The other two common sizes are 5/8" and 3/4". I'd try the 5/8" first.

Wedge
 
   / Spark Plug Socket Size? #3  
Also might be metric...19 mm is a loose 3/4's", BTW.
 
   / Spark Plug Socket Size? #4  
Some of the older tractors had a 18 mm or 7/8 sae thread and I think they both take a 7/8 socket to remove.
 
   / Spark Plug Socket Size? #5  
The other two common sizes are 5/8" and 3/4". I'd try the 5/8" first.

Wedge

Also might be metric...19 mm is a loose 3/4's", BTW.

If 13/16 is too small, wouldnt a 5/8, 3/4, and 19mm also be way too small:confused2:

I would try just a 7/8 deep socket. And yes, it could very well me a metric plug. Just because it is an older US tractor, doesnt mean someone could have just thrown whatever plugs in it they wanted.
 
   / Spark Plug Socket Size? #6  
Hello:

Does anyone know what size socket the spark plugs take on a International 460 tractor. It's a 221 cubic inch 6 cylinder engine. My 13/16 is too small.

Thanks:

Vern From Illinois

Some of those engines didn't give much space around the sparkplug. Could it be that your socket is too thick?
 
   / Spark Plug Socket Size? #7  
Hello:

Does anyone know what size socket the spark plugs take on a International 460 tractor. It's a 221 cubic inch 6 cylinder engine. My 13/16 is too small.

Thanks:

Vern From Illinois

I have an older Autolite sparkplug catalog and it specs plug #3116 for your 460: 3116 is a non-resistor power tip, 7/8" hex (and .025" gap in case you need that).

FYI, 3116 crosses to Champion D18Y.
 

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