Plug reading

[Geoff 2]

Maybe it is time for Lt. Columbo......because nobody else is getting anywhere, lol.

 

[RemCharger]

 

[Pops1967GTX]

 

[HEMI-ITIS]

The plugs on POPS chart were from WOT conditions and the ignition being shut off at throttle closing.

 

[Aron Gleason]

Running a lot cleaner now.

 

[Geoff 2]

Maybe the pic, but looks like 'peppering' on the insulator....but is not pepper.

 

[Aron Gleason]

Maybe the pic, but looks like 'peppering' on the insulator....but is not pepper.

Yes, I don't know why its like that.

 

[Orig69]

The spacer is in place to keep the fuel from percolating.

What temperature is the engine running at when it's percolating fuel?

 

[Aron Gleason]

What temperature is the engine running at when it's percolating fuel?

180 . And the fuel isn't percolating.

 

[Aron Gleason]

180 . And the fuel isn't percolating.

Could the peppering be detonation? Its only on one side of the plug

 

[Orig69]

Yes possibly pre-ignition or detonation.

Could be caused by uneven fuel distribution.