Spark plug broke?

[Sig556]

Dylan, no matter how you look at this it's bad. You don't know how bad or good the engine condition is at this point. Coolant intrusion is an engine killer if left unchecked. That being said, the only proper way of correcting the cross threading at this point is to REMOVE the HEAD and clean out any metal left in the cylinder and have the machine shop properly install a threaded insert to make sure it is installed to the proper depth and is square with the head. As a side note if coolant has entered the oil pan you may want to opt for a new short block. Ask me how I know?

Sponsored

 

[fmc_smt]

If you look at the picture , there has already been an insert installed . You can see the knurled top of the insert . Since the spark plug hole has been tapped for the insert and the insert failed . It came out with the spark plug , the head is basically junk .

 

[ImBravo]

Dylan, no matter how you look at this it's bad. You don't know how bad or good the engine condition is at this point. Coolant intrusion is an engine killer if left unchecked. That being said, the only proper way of correcting the cross threading at this point is to REMOVE the HEAD and clean out any metal left in the cylinder and have the machine shop properly install a threaded insert to make sure it is installed to the proper depth and is square with the head. As a side note if coolant has entered the oil pan you may want to opt for a new short block. Ask me how I know?

Oh man, so this guy just putting the insert in and a “new” spark plug was not the right thing to do? Thats not good. Im off work in 2 hours so i find out if they will help me out or not.

 

[Reap]

Oh man, so this guy just putting the insert in and a “new” spark plug was not the right thing to do? Thats not good. Im off work in 2 hours so i find out if they will help me out or not.

If it looks like the 1st shop screwed the pooch and maybe the second shop can/will act as a expert witness you could go to small claims court if the first shop will not work with you on this.

 

[ImBravo]

https://www.summitracing.com/parts/oes-25649


Thread Repair, Fix-A-Thread, 14mm-1.25, Spark Plug, Aluminum Heads,

That insert looks 1 1/4 inch to you?

They are checking it right now. When they call me, ill go in and look at it more closely myself and see if its the right size. I havent had my car for a week unfortunately

 

[ImBravo]

Sorry to hear about your troubles. Please keep us posted on what the mechanic says and does about it.

So they said that the fuel injector needs to be replaced. They said its too lean causing the cylinder 3 to get too hot and burn off the tip on the plug. Said there was normal engine wear, hotspots in cylinder 3 bc of the lean fuel, great compression on all cylinders,and no need to replace the engine. But why would the other shop say i need a replacement? And even said i should go back to the original shop to see if they would cover it.. so you would think since they wont make any $ off that that they would be telling me the truth. Its weird. The first shop said itll be $425 to replace the injector and that i wont have any problems from there. Im soo lost. Dont know who to believe.

 

[NGOT8R]

So they said that the fuel injector needs to be replaced. They said its too lean causing the cylinder 3 to get too hot and burn off the tip on the plug. Said there was normal engine wear, hotspots in cylinder 3 bc of the lean fuel, great compression on all cylinders,and no need to replace the engine. But why would the other shop say i need a replacement? And even said i should go back to the original shop to see if they would cover it.. so you would think since they wont make any $ off that that they would be telling me the truth. Its weird. The first shop said itll be $425 to replace the injector and that i wont have any problems from there. Im soo lost. Dont know who to believe.

Well, replacing the injector will be easy and much cheaper to do. Once you get past having a new insert properly installed, it might be worth a try. I’m sure you could change them yourself without difficulty.

Having said that, If if we’re me and I intended on keeping the car for a long time, I would be looking to replace the head with a new one instead of having an insert repair done. I just don’t think I‘d be comfortable with that type of repair for long term usage.




https://www.searchfordparts.com/oem...MIg-D0qOfZ_gIVhMfjBx1vYQE4EAQYAiABEgK4xPD_BwE

 

[Rapid Red]

I will ask this what made you pick the original shop, price, reputation.

 

[DougS550]

Took a car into 1st mechanic for cylinder 2 misfire after i had already change all 4 plugs. They said that cylinder 3s plug was “cross threaded” and that was causing the misfire on cylinder 2 so they replaced the spark plug.. made no sense to me.. so i get the car back and take it on a 60mile drive and back and it breaks down again on the way back but this time much worse. Barely made it home and made a call to a new mechanic to get a 2nd look at it.. well it sat for about a month before i could get it in but when i did, they said that what happened during my 60mile drive was that the “new” plug they put in cylinder 3 broke and fell into the cylinder and did some pretty good damage inside and that he recommends a full engine replacement.. but he said i should talk to the original mechanic shop and see what they will do about their mistake because new plugs dont just break and it looks like it they put in an old plug instead.. the original shop said bring it in monday so they can take a look at the damage.. but they didnt seem to happy with me.. whats the likelihood they actually help me out? Attached is a pic of the plug that we pulled out.. (still fired btw but not sure how)

Wow, That spark plug Insert looks like it was not put in correctly. Plus, through my racing days and installing inserts, I would never put an insert in a head without first removing the head. To much shit falls into the combustion cylinder which will cause issues with valve seats, piston scaring etc. You can never install one perfectly without getting shavings into the cylinder. I have trashed a few engines in my time and have never seen a plug which looked so worn out after only 60 mile since install. Plus, I always use Anti-seize compound on all of my spark plugs. You just have to adjust your torque limits to compensate for the anti-seize. Usually it is like 20% less torque than OEM specifies. Good Luck.

Sponsored