6.2L spark plug change - tips and tricks

[cgibs89]

My biggest thing was making sure I had a seat cushion for my knee/chest when kneeling/laying on top of the engine while doing this. Surprisingly, for all the huffing and puffing I heard from people doing this, it only took me about 2 hours to do this. The hardest one, in my opinion, wasn't the lower front PS plug, it was the DS plug directly behind the steering linkage. There was a lot of blind feeling and hoping from the top. Maybe I could have accessed it from the wheel well but I didn't feel like pulling the tires off.

I also learned either the dealer I bought it from or the PO only did the top 8 and the truck always had a "hiccup" from off-idle acceleration. Those were copper plugs, and the original Iridiums were in the sides at 100k. So if you bought your truck used and it's always felt "off" coming off idle, check your plugs. Laziness on the part of whoever did that.

 

[Ruger]

After replacing the spark plugs about a month ago, I am about to go back and replace the spark plug wires. I bought MDS P/N 31639, which has an application specifically for the 6.2L 2010-2014. The set comes with eight 8.5mm wires, 8 wire hold-downs of the ziptie type, and interestingly 1-8 spark plug wire numbers with a tool that enables you to easily transfer the plastic number collar from the tool to the wire. Pretty cool!

So, here's my question. I know that the firing order is 1-3-7-2-6-5-4-8, but how are the cylinders numbered? The Owner's Guide does not have a diagram that shows how the cylinders are numbered.

 

[CoronaRaptor]

After replacing the spark plugs about a month ago, I am about to go back and replace the spark plug wires. I bought MDS P/N 31639, which has an application specifically for the 6.2L 2010-2014. The set comes with eight 8.5mm wires, 8 wire hold-downs of the ziptie type, and interestingly 1-8 spark plug wire numbers with a tool that enables you to easily transfer the plastic number collar from the tool to the wire. Pretty cool!

So, here's my question. I know that the firing order is 1-3-7-2-6-5-4-8, but how are the cylinders numbered? The Owner's Guide does not have a diagram that shows how the cylinders are numbered.

You don't need to know, the wire from each ignition coil goes straight to each spark plug. just label them front to back 1-4 and 5-8, @MTF mentioned it once, but I forget, could be the passenger side front is #1, idk, lol.

 

[Ruger]

@MTF posted this, and I have independently confirmed that it is correct.

 

[CoronaRaptor]

@MTF posted this, and I have independently confirmed that it is correct.

What did he post? Your english is terrible, lol. Is it correct what I said, that he said, or is it correct what you think I said that he said is said to be correct?

 

[Ruger]

What did he post? Your english is terrible, lol. Is it correct what I said, that he said, or is it correct what you think I said that he said is said to be correct?

My English is terrible? That's a @&!*$ complete English sentence! Being wrongly accused of poor English usage is something up with which I will not put!

But to be painfully clear for the English impaired...
Ford went with a rather nontraditional numbering system on the so-called Boss 6.2L engine. The number one cylinder is the forward cylinder on the passenger side, and the cylinders on that side are numbered 1-4. The forward cylinder on the driver's side is #5, and the cylinders on that side are numbered 5-8. Stated another way, the #4 cylinder is the rearmost cylinder on the passenger side, and the #8 cylinder is the rearmost on the driver's side. See diagram, attached to post #34, this thread.

 

[CoronaRaptor]

My English is terrible? That's a @&!*$ complete English sentence! Being wrongly accused of poor English usage is something up with which I will not put!

But to be painfully clear for the English impaired...
Ford went with a rather nontraditional numbering system on the so-called Boss 6.2L engine. The number one cylinder is the forward cylinder on the passenger side, and the cylinders on that side are numbered 1-4. The forward cylinder on the driver's side is #5, and the cylinders on that side are numbered 5-8. Stated another way, the #4 cylinder is the rearmost cylinder on the passenger side, and the #8 cylinder is the rearmost on the driver's side. See diagram, attached to post #34, this thread.

Did you just edit that post, because it wasn't there when I replied to it.

 

[Ruger]

And now for the aggravation...
I bought a rather large tube of VersaChem Spark Plug Boot Grease when I changed the plugs - enough, effectively, for the rest of my life. And now I can't find the thing. Arrrrgh! It drives me nuts!

But VersaChem was kind enough to describe it on its web site as 100% dielectric silicone grease. I have some Permatex Dielectric Tune-Up Grease from, geeze, who knows when, so that'll have to do. I hate it when things disappear. Absolutely HATE it.

 

[Ruger]

Did you just edit that post, because it wasn't there when I replied to it.
View attachment 355886

I don't think so. I really don't. I'm so aggravated about losing a stupid tube of spark plug boot grease that I have resorted to alcohol abuse. It now becomes a distinct possibility that I will not get those new spark plug wires installed today.

Oh wait, I posted the words but could not post the diagram initially because it was in a format that FRF could not accept. I had to actually print it out, then scan it, then upload it to FRF. That took a few minutes, and you probably read my post before I finally got the diagram posted. Sorry for the confusion!

BUT, gentle reader, you will kindly notice that despite alcohol consumption, my English remains impeccable. Error free, too.

 

[Ruger]

This is the MSD P/N 31639 Wire Set, Red, Ford Raptor 2010-14 6.2L

FYI, MSD does not recommend for or against the use of silicone dielectric grease on the inside of the spark plug boots. I read in some sources that silicone grease can degrade silicone rubber, but the technical advisor at MSD said that he uses dielectric grease and has never had a problem. He offered that they use a silicone spray lubricant when they make the boots. MSD just doesn't have an official position on it.