Change my spark plugs...

**DesertRat** · 05-03-2009, 09:19 AM

So finally i decided to go ahead and change the plugs in my Z28, what a PITA

Now i know that you can get a lot of info about the condition of your engine and to learn about developing problems by inspecting the plugs you just pool out of the motor. I was hoping to get some opinion from the experts here. The car just hit 59000 mile and dose R the original AC 41-931 plugs from the factory(NGK TR55 went in). They have a white red like residue on the top but look better then i expected, but i'm not an expert. Thanks for any input guys

**Orcus79** · 05-03-2009, 09:39 AM

they look normal to me.

**Hi-Po** · 05-03-2009, 09:47 AM

Your shooting for a general tan coloring. Those look fine. Its when they are bright white that you should start to worry

**JoshieDoom** · 05-03-2009, 09:49 AM

Normal wear. Plugs arent rusty at all, look like fuel burn is complete and no big globs of carbon on the electrodes. Look great to me

**DesertRat** · 05-03-2009, 03:03 PM

I'm new to the LS1 world as this is my first 4th gen camaro so I'm here to learn and have a better knowledge about this awesome power plant!
I'm glad to find out my engine seems to be in a good shape, that's always a good starting point before i go with the mods. Thanks for the info guys.

**V8MUSCLE** · 05-07-2009, 11:03 AM

they look like mine did, except for the very back one on both sides, both had what looked like burnt oil on the ceramic part. i also did a compression test since i had the plugs out. all of em between 152 and 160. not bad for 130k miles.