steveo29 0 Posted April 28, 2004 ive been making checks on my g60's plug color the outer ring where its threaded is black and sooty,but the center is more of a tan colr while the very tip is white/grey my question is...what bit should be tan??...and how long for them to color up?? im checking after normal driving my spec is red inj,ported charger with 16psi,sns chip &fpr and 750 ohms on the c/o pot Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted April 28, 2004 That is normal. If all 4 are the same colour, you have a healthy engine. K Quote Share this post Link to post Share on other sites
Henny 0 Posted April 28, 2004 yup, sounds normal to me too... 8) Quote Share this post Link to post Share on other sites
steveo29 0 Posted April 28, 2004 oh...its just that i was thinking black meant rich...and the white tip possibly meant too lean Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted April 28, 2004 Nah that's fine mate. Check here if in any doubt:- http://www.spark-plugs.co.uk/pages/tech ... gnosis.htm Almost word for word what you described! K Quote Share this post Link to post Share on other sites
