Why do spark plugs crack?

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Posted by Jim Lee [108.162.245.181] on Tuesday, October 16, 2018 at 20:32:30 :

Out of the blue. Well, grey up here. One of my spark plugs cracked. Two cracks down the insulator. What causes things like this? Never seen one fail like this before.

-jim lee

Follow Ups:

Re: Why do spark plugs crack? - Kaegi 12:03:39 10/17/2018

Autolite - Jim Lee 13:50:46 10/17/2018
- Re: Autolite - Kaegi 14:30:19 10/17/2018

Re: Why do spark plugs crack? - Bruce in seriously wet BC 00:26:00 10/17/2018

Re: Why do spark plugs crack? - Vaughn 21:06:00 10/16/2018

Re: Why do spark plugs crack? - The Dodge Boys 20:44:35 10/16/2018

Re: Why do spark plugs crack? - Jerry Henry 20:48:22 10/16/2018
- Re: Why do spark plugs crack? - Clint dixon 10:01:54 10/17/2018
- Re: Why do spark plugs crack? - Jim Anderson 23:18:25 10/16/2018

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