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Spark plug gapping
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=35451
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Author:  lionseye640 [ Wed Aug 27, 2008 1:19 pm ]
Post subject:  Spark plug gapping

What's the proper gapping for spark plugs (2005 3.7L). Just picked some new plugs up from the stealership and want to ensure that they are gapped properly.

Author:  tommudd [ Wed Aug 27, 2008 1:29 pm ]
Post subject: 

pop the hood and look at the info on the front of the radiator support, it will tell you the gap. . also shows how to replace the belt as well :wink:

Author:  lionseye640 [ Wed Aug 27, 2008 1:57 pm ]
Post subject: 

Blonde moment - totally forgot that all the info was under the hood :oops:

Author:  tommudd [ Wed Aug 27, 2008 5:18 pm ]
Post subject: 

lionseye640 wrote:
Blonde moment - totally forgot that all the info was under the hood :oops:


we are all allowed one per day, two on Sunday's and also special holidays :wink: :wink:

Author:  JL Rockies [ Wed Aug 27, 2008 5:23 pm ]
Post subject: 

Hold the phone.......you put plugs that spark in your engine?????? Oh the horror! :D

Author:  lionseye640 [ Wed Aug 27, 2008 5:30 pm ]
Post subject: 

JL Rockies wrote:
Hold the phone.......you put plugs that spark in your engine?????? Oh the horror! :D


:-)r :-)r :-)r :-)r :-)r

Author:  jeepkj02 [ Wed Aug 27, 2008 5:51 pm ]
Post subject: 

It should be set at 0.040" gap.

Author:  tjkj2002 [ Wed Aug 27, 2008 8:22 pm ]
Post subject: 

jeepkj02 wrote:
It should be set at 0.040" gap.
Not for all years,mine is 0.042".

Author:  CrossBones [ Wed Aug 27, 2008 8:34 pm ]
Post subject: 

My '02 Limited (3.7) says 0.040 -- Of course when I checked the Denso Iridiums I recently installed, I didn't have to bother gapping, they were perfect.

Author:  Maximum Carnage [ Thu Sep 25, 2008 12:26 pm ]
Post subject: 

CrossBones wrote:
My '02 Limited (3.7) says 0.040 -- Of course when I checked the Denso Iridiums I recently installed, I didn't have to bother gapping, they were perfect.


What? This is the info I get from the NGK website. Ofcourse this is for my 2002.

V-Power
ZFR6F-11G # 6987
Plug Gap.044

G-Power
ZFR6FGP 7100
Plug Gap.044

Laser Platinum
PZFR6F-11 * 3271
Plug Gap.044

Iridium IX
ZFR6FIX-11 6441
Plug Gap.044

Author:  tjkj2002 [ Thu Sep 25, 2008 12:30 pm ]
Post subject: 

Maximum Carnage wrote:
CrossBones wrote:
My '02 Limited (3.7) says 0.040 -- Of course when I checked the Denso Iridiums I recently installed, I didn't have to bother gapping, they were perfect.


What? This is the info I get from the NGK website. Ofcourse this is for my 2002.

V-Power
ZFR6F-11G # 6987
Plug Gap.044

G-Power
ZFR6FGP 7100
Plug Gap.044

Laser Platinum
PZFR6F-11 * 3271
Plug Gap.044

Iridium IX
ZFR6FIX-11 6441
Plug Gap.044
Do not go by what a plug company says,go by what is printed on the emission sticker under your hood(on the radiator upper support).

Oh and just remember to use a plastic/composite gapper on platnuim and iriduim plugs or you will ruin them,and those +2/+3/+4 junk plugs you can not gap at all.

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