Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 10-11-2010, 01:57 PM
dmlong47's Avatar
Member
 
Join Date: Jun 2010
Posts: 316
Thanks: 0
Thanked 4 Times in 3 Posts
Rep Power: 8373
dmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond repute
best gapping for 3.7 spark plug?

whats the best gapping for 3.7 spark plug? im using .035 at the moment
__________________

__________________
Reply With Quote
  #2  
Old 10-12-2010, 02:05 PM
B.P.O.D's Avatar
RockNrolla/JG Founder

My Jeep: 2008 3.7L WK
 
Join Date: May 2009
Location: Bergen County, NJ / Bushkill, PA
Posts: 14,644
Thanks: 3
Thanked 9 Times in 8 Posts
Rep Power: 16708
B.P.O.D has disabled reputation
Send a message via AIM to B.P.O.D
Re: best gapping for 3.7 spark plug?

use the stock gap that is recommended.

3.7 V6
Mopar p/n SPZFR6F11G (NGK)
(.042 gap, 6 plugs, tighten to 20 ft. lbs.)

http://wkjeeps.com/wk_sparkplugs.htm
__________________

__________________
Irfan "Showing off is the fool's idea of glory."
can you beat me in a fight??? http://dreamps.mybrute.com
member of Black, Tri-State, 6 cylinder club 08 Brilliant Black Laredo (JG 3.7L Squad)- k+n 63-1545,magnaflow 10436,mygig(ren), HID's 6k lows, 6k+3k fogs,dual turn leds,led brows,v-led interior leds, cargo led strip, reverse hids, 92 led brake lights, tinted tails,custom powder coated mesh grill, srt sways, 15% tinted windows,illuminated visors,shorty antenna, HH Class III, cargo liner, thule snowboard rack,kayak rack, bike rack

Future mods - color matched side mirrors, black srt reps

My 1-step correction writeup

How To - LED BROW

Reply With Quote
  #3  
Old 10-13-2010, 09:34 AM
jryock's Avatar
Member
My Jeep: 2007 3.7L WK
 
Join Date: Dec 2009
Location: Chesapeake, VA
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1773
jryock is on a distinguished road
Re: best gapping for 3.7 spark plug?

+1 for B.P.O.D

WKJEEPS.COM is a great source (and a life saver) when used along with this forum!
__________________
Reply With Quote
  #4  
Old 10-13-2010, 11:58 AM
Member
My Jeep: 2005 3.7L WK
 
Join Date: Mar 2010
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1712
cort692 is on a distinguished road
Re: best gapping for 3.7 spark plug?

It's on your hood, on a sticker
__________________
LED Interior | 2 In. RC | Tow Package | 5/8" Saguaro4x Shackle Mounts | Saguaro4x CB Antenna Mount | Uniden PC78XL CB Radio | 4' Firestik Firefly Antenna | K&N CAI | Rola Roof Rack | 17" Moabs | 1.25" SpiderTrax Spacers | PowerWire

2005 WK 3.7L V6 | 1985 Mercedes Benz 380SL | 1996 XJ Country (Victim to Cash4Clunkers)
Reply With Quote
  #5  
Old 10-13-2010, 12:50 PM
dmlong47's Avatar
Member
 
Join Date: Jun 2010
Posts: 316
Thanks: 0
Thanked 4 Times in 3 Posts
Rep Power: 8373
dmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond reputedmlong47 has a reputation beyond repute
Re: best gapping for 3.7 spark plug?

checkers told 0.0375 with champion plugs thats why i was asking. i had 15000 on this park plugs took them off and the gaping was 0.055 so i re-gapped them to .035. motor seems lighter and mpg are going up but not by much


thanks for the replies it did answer my question

i will check my hood for that info
__________________
Reply With Quote
  #6  
Old 10-15-2010, 11:58 PM
Member
My Jeep: 2011 5.7L WK2
 
Join Date: Jun 2009
Location: HOMESTEAD FLORIDA
Posts: 156
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2311
AIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond reputeAIR_RAM has a reputation beyond repute
Re: best gapping for 3.7 spark plug?

I would gap them to .040 gap. This is what I set all the 4.7L plugs to.... the 3.7L uses the same coil packs and is basically the same engine as the 4.7L with two less cyliders.

NICK
__________________

Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
broken spark plug boots izericson Tech Tips DIY/How To 5 04-06-2010 10:50 PM
Spark plug not firing? 05quadratrac Grand Cherokee - WK 5 03-20-2010 01:26 PM
Oil and spark plug question. 05quadratrac Grand Cherokee - WK 22 03-07-2010 11:54 PM
4.7 Guys spark plug question. 05quadratrac Grand Cherokee - WK 11 03-05-2010 05:06 PM
spark plug replacement B.P.O.D Grand Cherokee - WK 36 03-02-2010 05:18 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 09:23 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community