6.4 Plug Change Tips???

[FlatbedHemi]

Looking to see if there are any tips or tricks to changing the plugs out on a 6.4 Hemi. Pretty used to working on old Chevys, and I know Fords have some tricks to getting the plugs out. Just wondering if there's anything to the Hemi, like change them hot/cold, need a certain tool, remove this part or that?

Also, is there anything else that needs to be replaced besides the plug itself?

 

[buckeyexx]

Yeah get an engine bay creeper so you can lay across that while getting rear plugs. Lol. Be really when I did mine I didnt have to have anything special other than a couple of extensions and swivel. I think it maybe took about 2-3 hours and that was taking my time

 

[Zoe Saldana]

search youtube some good vids there.

Looking to see if there are any tips or tricks to changing the plugs out on a 6.4 Hemi. Pretty used to working on old Chevys, and I know Fords have some tricks to getting the plugs out. Just wondering if there's anything to the Hemi, like change them hot/cold, need a certain tool, remove this part or that?

Also, is there anything else that needs to be replaced besides the plug itself?

 

[HEMIMANN]

Yeah get an engine bay creeper so you can lay across that while getting rear plugs. Lol. Be really when I did mine I didnt have to have anything special other than a couple of extensions and swivel. I think it maybe took about 2-3 hours and that was taking my time

Members report going through wheel wells eliminates overhead engine floundering?

 

[buckeyexx]

I have seen reports of that. Could be easier access I suppose. I’ve never tried that method or looked at the possibility of getting to them from there myself.

 

[FlatbedHemi]

But as far as changing them on a cold engine, there's no issues? My main concern is getting them out without breaking them. I know on a lot of Fords, you have to change them hot. My Chevy's were never a problem cold, but I've never change plugs on a Hemi before, so I'm not sure of the intricacies associated with. Id rather not work on a hot engine, but I don't want to snap them off either.

 

[StickyLifter]

Always change with engine cold and always use a dab (just a dab will do) of antiseize on the threads with aluminum heads.

 

[Zoe Saldana]

Always change with engine cold and always use a dab (just a dab will do) of antiseize on the threads with aluminum heads.

Check the plug mfg - some do not need/recommend that.

What people need to know is how to apply dialectic grease properly.

 

[HEMIMANN]

I like changing plugs on hot engines. In fact, on engines while they're running!
Keeps things exciting!

 

[EdGs]

Check the plug mfg - some do not need/recommend that.

What people need to know is how to apply dialectic grease properly.

I believe the NGK site recommends not using antiseize as the threads are already coated.

As far as dielectric grease goes, the guy at NAPA told me he did a hemi and used the good part of a tube.

He must've slathered the entire boot with it, AND filled the plug wells too,......lol.

I simply ran a small bead with my finger around the plug near the base of the insulator, and put a dab on the end of the boot.

I wiped more dielectric grease off my finger than I used on the plugs. A little goes a long way. I have enough left over to last a couple lifetimes, and then some.