Spark plugs
#1
Spark plugs
I changed the spark plugs and I am freaking out. My leading look really really really bad. I searched but no concrete answer. what it could be detonation, worn out or fouled.? Both are 9 heat range. Fd is pushing 320- 350whp. Any help would be appreciated.
Left leading, right trailing.
#2
Engine, Not Motor
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Colour doesn't look too bad.
Do the deposits just brush off?
Looks fairly normal to me.
The trailing plug always looks "better" because the trailing plug hole into the rotor housing is much smaller and the plug is exposed to a lot less abuse.
Do the deposits just brush off?
Looks fairly normal to me.
The trailing plug always looks "better" because the trailing plug hole into the rotor housing is much smaller and the plug is exposed to a lot less abuse.
#7
The center electrodes look fine and the ceramic doesn't look like it's damaged judging by the pictures. To get some of the harder deposits off you could lightly sandblast the tips of them.