Loss of Power / no power, "chugging" a little above idle

[chrisj]

Unfortunately on compression check, cylinder 4 pulled the spark plug out with split and burned up coil, meaning spark plug was stripped off and then eventually blew out*. I may need to put on a (1) new head unless I can get a (2) thread repair to work. This should fix the issue and I will keep thread updated. Although the behavior prior to blow out was peculiar the engine codes and final behavior matches symptoms.

Another thing to note, I had taken the car to a ford dealer and they told me the clutch needs to be replaced to fix it -- this was not the problem.

*I am always extremely careful not to strip threads but apparently this time luck was not on my side

Thanks for all the comments

 

[TyphoonFiST]

Unfortunately on compression check, cylinder 4 pulled the spark plug out with split and burned up coil, meaning spark plug was stripped off and then eventually blew out*. I may need to put on a (1) new head unless I can get a (2) thread repair to work. This should fix the issue and I will keep thread updated. Although the behavior prior to blow out was peculiar the engine codes and final behavior matches symptoms.

Another thing to note, I had taken the car to a ford dealer and they told me the clutch needs to be replaced to fix it -- this was not the problem.

*I am always extremely careful not to strip threads but apparently this time luck was not on my side

Thanks for all the comments

Who did the last set of plugs?

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[Rocketst]

Unfortunately on compression check, cylinder 4 pulled the spark plug out with split and burned up coil, meaning spark plug was stripped off and then eventually blew out*. I may need to put on a (1) new head unless I can get a (2) thread repair to work. This should fix the issue and I will keep thread updated. Although the behavior prior to blow out was peculiar the engine codes and final behavior matches symptoms.

Another thing to note, I had taken the car to a ford dealer and they told me the clutch needs to be replaced to fix it -- this was not the problem.

*I am always extremely careful not to strip threads but apparently this time luck was not on my side

Thanks for all the comments

Don't feel bad man. I have a brand new motor that mountune built and I have at least a dozen helicoils in the thing already. The aluminum ford uses isn't exactly the cleanest quality and it shows with some of the hole threads. They don't seem to hold much torque cuz I've even torqued some things to spec only to have them pull the threads out. Just helicoil it if you can. You'll need to take off the head to make sure you don't have any metal shards left over after drilling out the studs so prepare to replace a head gasket.

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[TyphoonFiST]

Don't feel bad man. I have a brand new motor that mountune built and I have at least a dozen helicoils in the thing already. The aluminum ford uses isn't exactly the cleanest quality and it shows with some of the hole threads. They don't seem to hold much torque cuz I've even torqued some things to spec only to have them pull the threads out. Just helicoil it if you can. You'll need to take off the head to make sure you don't have any metal shards left over after drilling out the studs so prepare to replace a head gasket.

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They make Helicoil kits so you don't have to removed the complete head from the vehicle BTW. You just have to find one with the correct insert. There are those who have done this on other vehicles and used wheel bearing grease on the Tap to help catch and shavings by removing it periodically and changing the grease on the tap* Good luck

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[PunkST]

Did someone run the plug in with an impact?

 

[chrisj]

Did someone run the plug in with an impact?

No impact, but I didn't use a torque wrench. I don't really remember much about changing the plugs as it was a while back and I had no problems immediately after. Per some research, I was thinking of using the thread repair kit that have a punch for the shoulder of the thread sleeve. I haven't decided how much I want to pull off to do the job, i.e. telescoping in the space with the tools while using the grease method and then blowing out debris

The main concern is if it doesn't work -- that would require new head

 

[PunkST]

Can you find a 1.6 turbo from an escape in your local yard. Its quite literally the same engine. And that you have a whole spare to work with.

You may also find it in some fusions.

 

[chrisj]

I wish I had a shop and I would definitely work on engine(s) more, its just not in the cards for where I live right now with a small garage space. As for the tools, I ordered the Lisle 65200 kit and waiting for it to be delivered. I ordered this kit because it has a 3/8 in drive. On additional research, I found an oversized kit from Big-Sert which I suppose gives folks a second chance, as well as a machine shop may be able to give 3rd chance (possible).

...waiting for the delivery

 

[The_Ryan]

For those installing NGK sparkplugs, do not add grease. I'm fairly certain the factory torque spec takes into account friction of the threads. This means if you apply grease, you may be overtightening your plugs even if you tighten to factory torque specs

https://ngksparkplugs.com/en/resources/5-things-you-should-know-about-spark-plugs

 

[SteveS]

I think he's talking about grease when he retaps the threads so the shavings don't fall into the cylinder as much.

 

[The_Ryan]

I think he's talking about grease when he retaps the threads so the shavings don't fall into the cylinder as much.

I know, I meant it more as a PSA to anyone seeing this thread and is getting nervous about their spark plugs.

 

[The_Ryan]

@chrisj , how long ago was it that you installed your spark plugs? I'm having some anxiety now about my spark plug install I did without a torque wrench back in March 😬

 

[4DGC]

I have a Gen 10 F150 and blown out spark plugs are pretty common in the V8s. The forums have pretty much decided that time-serts are the best option.

http://www.timesert.com/

 

[TyphoonFiST]

I have a Gen 10 F150 and blown out spark plugs are pretty common in the V8s. The forums have pretty much decided that time-serts are the best option.

http://www.timesert.com/

Good info right here *

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[PunkST]

My two cents are never do plugs when the head is even warm. I havent ever used anti sieze or grease on any spark plugs ive done. Always went with hand tight first then use a normal ratchet for 1/ 16 to 1/8 turn on tapered seat plugs, and quarter turn on the ones with washers. Then again i dont have massive upper arm strength.

 

[SteveS]

https://ngksparkplugs.com/en/resources/5-things-you-should-know-about-spark-plugs
https://ngksparkplugs.com/en/resources/spark-plug-installation
https://ngksparkplugs.com/en/resources/correctly-install-spark-plugs

Lot of good info on their site, especially about heat ranges, gapping, etc.

 

[chrisj]

@chrisj , how long ago was it that you installed your spark plugs? I'm having some anxiety now about my spark plug install I did without a torque wrench back in March 😬

I put in plugs about a year ago, no problems until about 9 months ago, so there was a period of time that had no issues/symptoms.

 

[chrisj]

I am still awaiting delivery for industrial cotton swabs and then I am ready to go on spark plug insert and then a compression check; I really hope this fixes everything. I also appreciate all the great input on this effort.

 

[TyphoonFiST]

I am still awaiting delivery for industrial cotton swabs and then I am ready to go on spark plug insert and then a compression check; I really hope this fixes everything. I also appreciate all the great input on this effort.

How did this turn out?