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-   -   Just changed spark plugs. Look at the old ones (Pics) (https://www.rx7club.com/general-rotary-tech-support-11/just-changed-spark-plugs-look-old-ones-pics-874799/)

Ball joint 11-22-09 04:53 PM

Just changed spark plugs. Look at the old ones (Pics)
 
4 Attachment(s)
I just changed my plugs from BUR9EQ's to B10EGV's and it cured my slight ignition breakup at high RPM. I took some pictures of the old plugs so guys could tell me what you think. Is this the sign of a lean condition? Current mods are listed below and I have no OMP, just premix.

FRONT TRAILING
Attachment 759294
FRONT LEADING
Attachment 759295
REAR TRAILING
Attachment 759296
REAR LEADING
Attachment 759297

66 impala 11-23-09 09:16 AM

if those are little craters in the top of the plug it looks like detonation to me......check your timing and pull some out

SanityAssassin 12-05-09 03:32 PM

Looks lean to me, they tend to be white if their running richer.


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