20V - Spark Plug Analysis

[suma_]

Today I send my car for routine service & change my spark plug. I've been using the plugs for almost 1 year. Quit surprising, when the plugs are removed from engine.

Plug no 4 & 1 shows more burn mark compared to 3 & 2.
I noticed lately the exhaust fume to have petrol smell more than usual.

Anyone can share with me on this? :hmmmm:

 

[lonelylilpig]

Nothing wrong with your plug, clean burning in your combustion chamber.
I guess u got the wrong idea to determine a plug's health level. First we should check the tip of the plug but not the core shell colour. If u notice the plug tip is contaminated with bits of carbon means your plug is too cold ( use a hotter plug ). If u c the plug tip is black means rich mixture. If u c the plug tip is cherry red means the plug is too hot ( use colder plug). If u c the plug tip damage or wear off enormously means it has improper spark or detonation. For best result recommended to use Denso PK20R11 or Denso iridium IK20.

 

[20V Quard Cam]

how about ik22? i heard better firing than 20...izzzit?

 

[TRD.AE92]

how about ik22? i heard better firing than 20...izzzit?

it is cooler than IK20 plug lo.

 

[suma_]

Thanks for the guide. After 2 days, I notice the exhaust fume smell less petrol.
Anyway is it possible for the A/F ratio differ for each cylinder? Or it can be other factor.
I just made assumption based on plug 4 & plug 1 as they are more darker color.

 

[1328]

bro,im using ik20 in my svt.i found it abit dry n white colour,izit too lean?how to solve tis prob?thanks bro.

Bump: bro,im using ik20 in my svt.i found it abit dry n white colour,izit too lean?how to solve tis prob?thanks bro.