DIY: Hemi 5.7L Spark Plug Change - Page 9 - Jeep Garage - Jeep Forum

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  #97  
Old 03-08-2015, 03:20 PM
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Re: DIY: Hemi 5.7L Spark Plug Change

I don't see that you have a forum for the Commander in Platforms. Either way, the how to helped a lot in how to do it. I have read discussions all over the place about what plugs to use and in the end decided to just get the stock Champion plugs. Interestingly enough, the engine had NGK's in it. More troubling, though was the fact that cylinders 3 & 4 plugs were barely over hand tight. new plugs in, torqued to spec with anti seize, running great with no more CEL.

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  #98  
Old 03-18-2015, 08:50 PM
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Re: DIY: Hemi 5.7L Spark Plug Change

Thank you, just what I was looking for, about to do my first plug change, had it figured out but love the tool specs and pics, just waiting on my plugs, online purchase. Just changed out air filter and cabin filter. Pretty straight forward.
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  #99  
Old 03-19-2015, 03:13 PM
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Re: DIY: Hemi 5.7L Spark Plug Change

just completed installing my 16 new plugs. Were anyone else's old ones seared this much? I wasn't expecting as much corrosion as I saw.

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  #100  
Old 03-20-2015, 07:51 AM
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Re: DIY: Hemi 5.7L Spark Plug Change

They don't look that bad to me. Of course, I can't see how much electrode wear there is.

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  #101  
Old 03-22-2015, 07:54 AM
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Re: DIY: Hemi 5.7L Spark Plug Change

What type of gapper does everyone use? I'm always afraid I didn't properly gap since I don't have the exact gap on my gapper.


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  #102  
Old 03-30-2015, 09:53 AM
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Re: DIY: Hemi 5.7L Spark Plug Change

I don't understand the questioning on the use of anti seize on plug threads? Why not? There is no downside to using it. Most auto parts stores will throw in a couple of those small, tear open, disposable tubes for free. At worst Permatex Copper C-5A, (the same thing Glock puts on the slides of it's pistols), is under $20 bucks for a small can that will last a lifetime. I've NEVER seen a thread damaged using that stuff. Even on shotgun chokes that have been left in for years. They endure way more carbon and fouling than any spark plug screwed into a modern engine.
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  #103  
Old 03-30-2015, 12:45 PM
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Re: DIY: Hemi 5.7L Spark Plug Change

Quote:
Originally Posted by billt View Post
I don't understand the questioning on the use of anti seize on plug threads? Why not? There is no downside to using it. Most auto parts stores will throw in a couple of those small, tear open, disposable tubes for free. At worst Permatex Copper C-5A, (the same thing Glock puts on the slides of it's pistols), is under $20 bucks for a small can that will last a lifetime. I've NEVER seen a thread damaged using that stuff. Even on shotgun chokes that have been left in for years. They endure way more carbon and fouling than any spark plug screwed into a modern engine.
Yes!! Of course if you've read my posts in the thread, you'll see I couldn't agree more.
The copper anti-seize you mentioned is an excellent product as is the choke tube analogy. I do all my own work and if I still own this Jeep after 100k mi. I'm sure I'll be very glad I applied some anti-seize to the plugs when I have to change them again.
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Old 03-30-2015, 02:10 PM
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Quote:
Originally Posted by mando View Post
What type of gapper does everyone use? I'm always afraid I didn't properly gap since I don't have the exact gap on my gapper.

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Cheap one form autozone.. used it twice so far for my plugs and its been good so far
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  #105  
Old 04-05-2015, 10:27 AM
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Re: DIY: Hemi 5.7L Spark Plug Change

Quote:
Originally Posted by billt View Post
I don't understand the questioning on the use of anti seize on plug threads? Why not? There is no downside to using it. Most auto parts stores will throw in a couple of those small, tear open, disposable tubes for free. At worst Permatex Copper C-5A, (the same thing Glock puts on the slides of it's pistols), is under $20 bucks for a small can that will last a lifetime. I've NEVER seen a thread damaged using that stuff. Even on shotgun chokes that have been left in for years. They endure way more carbon and fouling than any spark plug screwed into a modern engine.
In New England if you take it apart it goes back together with anti seize.
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  #106  
Old 04-05-2015, 11:23 AM
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Re: DIY: Hemi 5.7L Spark Plug Change

Quote:
Originally Posted by JoeD View Post
In New England if you take it apart it goes back together with anti seize.
I think that is good advice for anyone, regardless of where they live. Out here in the desert you can change out your shocks with a Crescent wrench after 6 years. I say that because I've done it. Still, when I put the new Air Shocks on, I did it with anti seize applied to every thread.
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  #107  
Old 04-30-2015, 08:26 PM
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Re: DIY: Hemi 5.7L Spark Plug Change

This DIY write up was exactly what I needed!!! My 2014 GC Summit 5.7 HEMI had NGK Iridiums in it and the MOPAR part from the dealer were NGK Iridium replacements. I will post a pic soon. I have 42,000 hard miles on her, local driving but 5 (fast) road trips NY to Fl, Mom n Dad and Diving in Keys.

Huge improvement, esp with all changes, new PCV, new fluid in Front n Rear diff and KnN drop in filter.
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  #108  
Old 05-08-2015, 08:16 AM
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Re: DIY: Hemi 5.7L Spark Plug Change

THANKS FOR THE GUIDE!!!! I have everything I need to do my 2013 JGC 5.7L this evening except a gapper (will have to pick one up on the way home). I'm currently just shy of 40k miles on the GC. Curious how bad they will look.
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