Help Me find Spark Plugs Please

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jtaylor

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So I need to replace my spark plugs. Right now, they are NGK ILZKR7B-11S. But the gap has bridged, as though the electrode material has melted and solidified on the other side side of the gap. There is also tons of black crud as well on the whole spark plug and the ceramic insulation (near the hex) is burned yellowish-brown.

Can anybody recommend something? btw these iridium plugs wore out in 25,000 miles. I'm thinking copper in a different heat range maybe. IDK
 
I wonder if the V6 has tons of carbon buildup? It sounds like the engine needs a good amount of maintenance top-end. Valve cover pics anyone?

I don't think I'd waste money on iridium for now unless it's strictly a need, use a 'suitable' stock replacement to get you buy(compatible NGK v-groove copper), and address your excessive carbon deposits in the combustion chamber.

Run a good fuel cleaner before your next oil change, and perhaps consider getting away from Royal Purple for a quick minute at least while you catch up on maintenance.
 
To OP:

Is your engine stock or "tricked" with chip re-programming? Why excessive carbon in Honda V6?

copper won't help you in this case if carbon buildup is the cause (running too rich/cold or improper ignition/advance mapping will cause all these)

Q.
 
No ecu tuning. But intake, downpipe, exhaust and lead foot. What do you think is going on?

Also. Could you guys help me figure out the v-groove part #? because a 12mm thread with 26.5 mm reach and projected tip all seem to be iridium. Can anybody help find the part # and whether or not I should go colder or hotter?
 
Brown-yellowish on ceramic is excessive detonation, as I've been told by some mechanics. Bad gas? Try running highest octane you can get.Wrong timing? Also make sure you did not touch ceramic parts of spark plugs,if so clean it up with brake cleaner, also check and clean coils,to avoid misfires thru insulation.
 
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If you are frying Iridium plugs in 25K as bad as you are saying something is mechanically wrong with your vehicle. You will go through coppers extremely fast if you find any to fit. I would spend your time and resources trying to find out what is wrong with the vehicle, causing such premature and serious plug failure, rather than waste money trying different plugs.
 
You better get that tune checked out - may be too late as the engine may already be toast. I hope the MAF tube wasnt enlarged. Downpipe - you dont have a turbo so you dont have a downpipe. Did you get a MIL releated to o2 sensor? I would prefer ND "hot U" plugs in there over NGK with at least 1 step colder heatrange than stock. Maybe. 7 is pretty cold already. If you have COP iggy, sick with the stocker NGK IR.
 
according to NGK the ONLY plug you can use is the laser iridium plug, which is what you currently have.

good luck finding anything else..
 
These are pictures of one of the spark plugs. They are all the same.
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So whats the verdict?
 
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Originally Posted By: jtaylor
I seriously did. I'm not kidding!!! these engines have that issue apparently.


No its not a known issue. The change interval is 120K miles on those plugs, and thats conservative on that car. Sounds like a ricer that did some stupid [censored] to his car and is looking to blame the plugs. Stop watching Fast & Furious thats the best thing that you can do for that poor car.
 
Originally Posted By: R2d2
Originally Posted By: jtaylor
I seriously did. I'm not kidding!!! these engines have that issue apparently.


No its not a known issue. The change interval is 120K miles on those plugs, and thats conservative on that car. Sounds like a ricer that did some stupid [censored] to his car and is looking to blame the plugs. Stop watching Fast & Furious thats the best thing that you can do for that poor car.


http://www.carcomplaints.com/Honda/Accord/2008/engine/fouled_spark_plug.shtml

Please do your research before bashing me as a person.
 
17 complaints out of what.. couple hundred thousand cars sold?

I am not a fan of honda at all.

However there's always a chance that there's something wrong with an engine. it'd have to be mechanical because the car computer would spot anything else going on pretty quickly.

Honestly I'd change the plugs, put a new set of OE's back in. and drive. I'd pull them out at 5k and inspect 'em. maybe not all of them, perhaps 3. Just to see what's going on.
 
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