I did a tune up yesterday and I found one of my plugs with the gap part pressed into the the electrode part. It wasn't pressed into the material just pressed so the two were together. I have no codes come up, the engine ran fine and I had no problems. I gapped them correctly when they were installed. What could this mean??? I replaced them with Bosch Fusions. It's actually better then the copper plugs. Much more power response.

 

Most likely when you installed them you accidentally dropped it or put pressure on it trying to install it in the head.

This mistake can be made very easily. The Bosch plugs are not recommended with your application. If you had one plug like that in the motor ANY PLUG will do better.

I would pull them out and get your money back. If you want a good plug let me recommend Champion Iridium Plugs. Bosch has been PROVEN not to work for us. Only install Champion plugs.
Just my 2 cense.

 

Crap, even after I've driven for about 45 miles???? I'm not sure if Advance would take them back. They seem fine to me, but I will keep an eye out. I have no pining or anything symptoms of the plugs not working. But only time will tell.

 

you should regap that plug and re check it in a week or two. you could have carbon deposits on that piston. that would press the ground strap into the electrode. other than that i agree with hydra.

 

I would still pull the plugs. Many problems have stemmed from applications of other spark plugs. Not to say that they won't work for ya, but I would pull them.

Also if there is a problem with deposits like shadow talks about you will see it on the plug.

One way of dealing with deposits is to steam clean the inside of the cylinder. One can do this easly. I would install some cheap champion regular plugs when performing this.

Here is a link I did a while back.

RE: Seafoam ?

 

with my shadow i did not have any deposits on the plug, but still had them on the pistons and valves.

 

The way you could clean the is discribed above in the link. Now you can try cleaners but again they are not regulated.

One good way I've done this is by pouring window cleaner into the TB.

 

in my opinion you should never pour any thing down your throttle body. a fine spray is ok but not poured. liquid does not compress like air. if you get to much liquid in one cylinder you may end up bending a rod or valve or worse,

 

The liquid is turned into vapor (steam). If you pour in too much it will not allow enough fuel/air mixture and adding a coolant to burn. It will not cause unstable pressure. Therefore by doing so the motor will just kill. I have tested my theory.

I think using a misting device will allow better atomization but will not allow enough vapor to form. It will not create sufficient amount water to enter creating steam in the time the valve is open. It will act like a humidity instead of a bulk amount of fluid expanding creating steam.

Not to mention, leaving trace amounts unexpanded water in the system will aid in rinsing away some of the deposits. It will burn out within the next stroke anyway.

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