Okay, so i had some extra time, actually i always do, but i decided to see what my spark plugs look like because i saw that chart on the back of the Haynes repair book, and the end to my spark plug is white. And the book said that my car might be running to hot. Anyone have any ideas, or things i could check, i can also post a picture of my spark plug if that will help people.

 

 

Post It!!!

 

 

so any ideas?

 

Ngk Bkr5e-11

 

whats that mean?

 

NGK is the brand
BKR5E-11 is the plug number


They are the copper version of the platinum plugs for our cars. You can buy the Platinums if you want but it's extra money, I figured since you already had copper you would probably just stick with them.

edit: do'h your a VGer anyway lol. Just stick with the coppers.. IE. the number I list above

 

hi,

looks like you got carbon build inside the engine,

 

But whats causing the white stuff? Is that just normal and its time for me to replace them, or is my car upset with me and its trying to tell me something?

 

That's at about 6000 miles, maybe 8000. I dont remember If I changed them at 125k or 127k but either way I just pulled that 5 mins ago and took the pic

 

yeah mine have been in for about 10000 miles i think

 

by the looks of it its running lean/hot like you said. what grade fuel do you usually use?

also, shawn... isn't that number for 1 step hotter plug? (i think we discussed this before but i can't remember... )

 

yeap, and everytime I say BKR5E-11 you always ask


Right Click
->Set As Wallpaper

 

I run whatever regular fuel is, 87 or somethin like that, so if my engine is running hot, i know this is a large question, but what should i check? and is my car in danger from this?

 

ahhh, ok... let see if i can burn that image into my memory or something

so i guess technically i have two steps colder... i guess...

as for the fuel and such, you might try running 89 and seeing if the plugs even out at all. i know when my other maxima was ran on 87 it ran like crap... not sure if it was just crappy gas or what but ecu must've registered some pinging because it felt slower than hell (and no... that's not because its a auto vg dammit! )

 

So i'll try the gas, anything else that could cause this white stuff?

 

injectors could be an issue if they aren't clean, limiting the fuel going in.

another issue could be unmetered air going into the engine. might check for hose leaks that are after the maf. other than that i'm not really sure what else could do it except for boost.

 

gOOGLE the issue: "white spark plugs..."

First example: http://www.ngksparkplugs.com/techinf...q/faqread2.asp

http://www.bullittarchive.com/Mainte...g_Spark_Plugs/

http://www.strappe.com/plugs.html

etcetc

 

Not sure what causes hot combustion chamber temps off the top of my head, but do you use a lot of (additional) fuel additives or cleaners? I don't remember what colour that comes out to be, but apparently frequent use of those things sometimes shows up on the plugs as deposits.

I'd get a service manual and look at the emissions controls, as I think those may be related to this kind of problem.

 

usually white plugs means running lean... which causes high combustion chamber temperatures.

 

I replaced my spark plugs today with some new bosch ones, and i got my timing set up where it should be, and i tell you what, i have never known my car to run this quick or smooth. Im very happy.

 

actually.... don't go with bosch.

they have been known to not do too good on these cars as well as many imports. you really want to stick with ngk.

 

READ!!!

 

Yeah, its all autozone had tho, you gotta work with whats available.

 

Wait a few days, RPMS will start jumping and you will wish you had listened to mrgone

 

Find a real store that knows what the car needs.
not that joke that they call autozone

 

Oh, im not doubting Mrgone, i will get those spark plugs next time i need some, or when mine crap out, but i needed spark plugs today to get my car running and i had to work with what was available.

 

Hi,

if you have bosch in your engine,

when your engine is at normal running condition it will start to bog down and run slow,

i would suggest you to stick with ngk your engine will run better and respond better,

i tried bosch in my engine before and my engine did not respond that will and lose a lot of power,

so don't use bosch and stay with ngk,

bosch sparkplugs are made by german and they are crap,

 

Why run the one step hotter plugs?

 

It was probably the timing that really helped. Retarded timing and low octance gas make your motor run real hot.

 

Well actually after all that, i was going to check the compression all my cylinders, and when i had to take the spark plugs out to do it, they were white again already. So who knows, but i guess it doesnt matter because that car is for sale now. So on to a new project that is even bigger.