i drove my car yesterday after a month and when i barely pulled out of my street. my car made a noise like a grinding and then shut off. this morning i pulled the spark plugs out and only one was blown!! any help to why this happened would be great.

 

holy ****.
check the top of the pistons for one. the ign timing another.
and for the love of god don't use those gimmick *** bosch plugs

 

umm, I call BS. lol

Holy **** is right.

n2o cant even do that to a plug. I think you have some foreign material in that cylinder.

 

its not bosch there NGK. and nothing foreign was in there. its an all motor set up and was only tuned for an hour and wasnt fully tuned.... i think i have to pull the head off

 

ngk?
those sure look like the bosch 4 electrode.

 

nope i can take a better pic to show its ngk

 

That definitely looks like mechanical damage to me. Just 1 spark plug you say? I would agree, pulling the head may be a good move. I would have immediately jumped on foreign material (as THC07 stated).

 

otherwise. timing or lean condition are the only other things that could ahve caused something that bad/

 

yeah my motor was running really lean but weird thing was i was barely switching to second!

 

Now that it is mentioned, preignition can really f-up a plug. Lean conditions (i thought) would burn too hot and 'blister' the plug.

Is it possible that 1 plug had a different heat rating versus the others?

 

no, thats not something that just happen all at once, unless it was a foreign object.
timing and/or lean condittions take time to do something like that.

 

Heat rating will not do that to this extent. period!

man thats odd. Im still sticking to something snmacking that plug.

Ive melted plugs with N20 many times, and they dont even get that bad before they quit working.

 

Then it's back to something inside the cylinder then. Are you absolutely sure that nothing could possibly be in that cylinder h22 kid?

I don't think it really matters but, which cylinder was it?

 

pull the head

 

yea, either way, you have to pull the head. there is going to be some leftovers of that plug sitting ontop of that piston

 

im positive. it was in cylinder 4 the one closest the the gears! im going to pull the head off tomorrow and make sure the cylinder didnt hit the spark plug. im going to inspect the piston and clean out all the debris. while my head is off im going to fix that spark plug hole because the thread is trash. gonna port and polish the head, valve job, put my high compression valves in there and my s2p3's while its out and sell my s2p2's

 

you might regret that, unless you plan on a new tune. whats your compression?

 

yeah im going to fully get this bitch tuned.. im using hondata s300 and my cp with my stroker is a bit over 13 and its a 2.5l now

 

got the head off and pictures of what had happened!!! what a sad day for me

 

I'm so sorry... That sucks. If I were to guess, was that due to a valve stem snapping?

 

from the looks of this i would say those valves couldnt handle the pressure. i should have installed my high comp valves when i had the chance. oh well live and learn the stupid way. thanks though

 

 

Another one bites the dust...sorry for your troubles....May your H22, RIP...

 

dyno ****ed up my motor. they forgot to tighten down cam gear to spec and it advanced in timing till it couldnt anymore and boom my motor blew

 

THEY OWES YOU MONEYSS

$$