Help Do you have to gap a Denso Iridium IK20 spark Plug?
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From: Forest Hill, MD USA
Car Info: 09 wrx(4door)spt
Help Do you have to gap a Denso Iridium IK20 spark Plug?
Do you have to gap a Denso Iridium IK20 spark Plug?
The gap out of the box is 1.1mm or 0.44in.
The Subaru factory service manual recommends 0.7-0.8mm or 0.028-0.031
But I was also told that you do not need to gap iridium plugs.
???help
The gap out of the box is 1.1mm or 0.44in.
The Subaru factory service manual recommends 0.7-0.8mm or 0.028-0.031
But I was also told that you do not need to gap iridium plugs.
???help
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Yes, you should gap them, but do not touch the irdium center electrode with the gapper... they break off. I would at least get it down to .034 or so... just be careful.
Last edited by HellaDumb; May 6, 2005 at 09:06 PM.
Thread Starter
Registered User
Joined: Dec 2003
Posts: 30
From: Forest Hill, MD USA
Car Info: 09 wrx(4door)spt
tools to gap iridium plugs
Originally Posted by HellaDumb
Yes, you should gap them, but do not touch the irdium center electrode with the gapper... they break off. I would at least get it down to .034 or so... just be careful.
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