These are pictures taken of the intake and exhaust valves of an K20A2 with 40K miles.
Why are some cylinder's exhaust valves white/er than others?
Why does it seem that one of the exhaust vales on each cylinder is whiter than the other?
Why is there a heavy / heavier black carbon deposit on one of the exhaust valves and not the other?
How can I clean the exhaust valve area of carbon deposits without having the carbon fall into the cylinder? (Is this something that I should attempt to do?)
Why are some cylinder's exhaust valves white/er than others?
Why does it seem that one of the exhaust vales on each cylinder is whiter than the other?
Why is there a heavy / heavier black carbon deposit on one of the exhaust valves and not the other?
How can I clean the exhaust valve area of carbon deposits without having the carbon fall into the cylinder? (Is this something that I should attempt to do?)