Question Regardng Champion 3X Sparkplugs

Nabco

Nabco

Senior Member
As my other thread mentioned I got the 3X plugs installed today. The size of these plugs are larger than the ones that were in the car and I did not have a box wrench large enough to fit them but was able to get them snugged up fine with a cresent wrench.

I would like to purchase the correct size box wrench, when it's time to take them out to clean I don't want to try doing that with the cresent wrench....does anyone know the correct size.

Thanks

Nick
 
Put your crescent wrench on a plug. Snug it up. Remove it. Measure distance between jaws.

I'm not sure why you wouldn't want to remove them with the same crescent wrench you installed them with, however.
 
Dick Steinkamp said:
Put your crescent wrench on a plug. Snug it up. Remove it. Measure distance between jaws.

I'm not sure why you wouldn't want to remove them with the same crescent wrench you installed them with, however.
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Thanks Dick I'll do that.....

I just think a box wrench gets a better grip then a crescent wrench
 
Nabco said:
I just think a box wrench gets a better grip then a crescent wrench
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That it does, but the torque on plugs should be low enough that you wouldn't run into problems installing or removing them with a crescent wrench.

Certainly a socket or box end wrench is better.
 
Nabco said:
As my other thread mentioned I got the 3X plugs installed today. The size of these plugs are larger than the ones that were in the car and I did not have a box wrench large enough to fit them but was able to get them snugged up fine with a cresent wrench.

I would like to purchase the correct size box wrench, when it's time to take them out to clean I don't want to try doing that with the cresent wrench....does anyone know the correct size.

Thanks

Nick
Click to expand...

Get a 6 point 1-1/8" box wrench.
I have a 6 point 15/16" Armstrong/Williams box wrench I use for modern A plugs.
 
Tom Wesenberg said:
It's also a good idea to use anti-seize on the plug threads. In fact anti-seize on many threads is a good idea.
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A number of years ago, quite a few reproduction cylinder heads came with spark plug holes which were way too tight due to various conflicting reported reasons.

Thus all those spark plugs were pre-seized in the heads!

Anti-seize was not a solution. It was due to mechanical interference.

My Solution: A top quality US 7/8-18 tap was run through the head that I was installing for a friend, in order to resize the threads in the head.

Since that time, I also procured a Pratt & Whitney 7/8-18 spark plug thread gage Standard, useful to check the threads on the plugs for size. This is a gage Standard, not a thread cutting die.

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