Spark Plugs
05-13-2005, 11:51 AM
#2
Jack Of All Trades
Join Date: Jun 2004
Location: Acton, California
Posts: 2,296
I'll post you a pic tonight of one broken exhaust valve and one bent intake valve from the last vehicle that I owned that had autolite plugs. (As in, don't use autolite plugs). I know you didn't put them in, but I'd get them outta there.
In my little incident, the center electrode fell out of the plug and after bouncing around inside the cylinder for a few seconds, it decided to exit thru the exhaust valve.
Use NGK plugs only.
In my little incident, the center electrode fell out of the plug and after bouncing around inside the cylinder for a few seconds, it decided to exit thru the exhaust valve.
Use NGK plugs only.
05-13-2005, 12:49 PM
#3
Loves The Asian Chicks
Thread Starter
Join Date: Oct 2004
Location: TN
Posts: 263
thanks CC, much appreciated for the info. yea, i didnt put them in there. being totally unaware of what proper needs the z has to have, i had taken it over to my auto place to get maintenance done on it. it orginally had Bosch plugs, the guy said those are wrong and put in these Autolites. like $3.00 a piece.
05-13-2005, 07:06 PM
#5
Jack Of All Trades
Join Date: Jun 2004
Location: Acton, California
Posts: 2,296
Here's the walmart (Fram Autolite) special plug. If you look closely, you can see that the center electrode is gone. The valves are from a FoMoCo special. I was pretty surprised at how the valve broke from the thin section into the thicker section instead of radially around the thin section. Actually the broken valve is the intake. The valve on the right is the exhaust that is bent. We didn't realize it was bent until re-grind.
Moral of the story......... go NGK
The custom spark plug holder in the pic is from junior #1's motorcycle engine after he went a little too long at WFO across the desert. It's kinda hard to see, but the rod big end stretched about 1/4". Again, another surprise that it didn't break. It definitely bounced the piston off the head a few times before it stopped turning over.
Moral of the story......... go NGK
The custom spark plug holder in the pic is from junior #1's motorcycle engine after he went a little too long at WFO across the desert. It's kinda hard to see, but the rod big end stretched about 1/4". Again, another surprise that it didn't break. It definitely bounced the piston off the head a few times before it stopped turning over.
Last edited by CanyonCarver; 05-13-2005 at 07:10 PM.
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