Blew head gasket, PICS added

[SloGN]

Re: Blew head gasket, PICS added

^^X2^^ And if you cut the engine off clean at the end of the run, coast off the track, and have a buddy tow you back to your pit area with another car where you read them there, even better. Plugs loose color very quickly when you idle around.
:2cents:
Dave

thats what i do best way to read a set of plugs. better than a egt gauge i think.

 

[cloneman315]

Re: Blew head gasket, PICS added

i would also say that it went lean,what did the wbo2 say when this happened?I also have stockers on my built motor at 26 psi.

 

[firstsy]

Re: Blew head gasket, PICS added

I called Cometic there is no 25% discount

 

[turbodig]

Re: Blew head gasket, PICS added

^^X2^^ And if you cut the engine off clean at the end of the run, coast off the track, and have a buddy tow you back to your pit area with another car where you read them there, even better. Plugs loose color very quickly when you idle around.
:2cents:
Dave

x2 on the tow-back. I can get by with making the turn to the return lane, gassing it to get up to speed, and then coast back to the timeslip shack. Tow/push from there.

The "cleanest" read you'll get is a shutdown at the big end, and a tow all the way down. If you want to read plugs for WOT conditions, you have to do WOT conditions only.

Here's a copy of Bruce's old "Plug Cuts" article
http://www.projectlt10.com/info/ind...ts&catid=39:ignition-and-electrical&Itemid=90

Some other really good ones:

http://www.angelfire.com/fl4/pontiacdude428/Readplugs.html

http://www.dragstuff.com/techarticles/reading-spark-plugs.html

http://www.4secondsflat.com/Spark_plug_reading.html


Sites that just show you a bunch of used plugs in various stages of wear/death are fairly useless- you won't see those conditions until it's too late. With clean plugs and a few WOT passes, you can generally determine which cyls are having issues. It's a bit more of a PITA for us, due to the ugly plug positioning.

 

[ghettosled]

Re: Blew head gasket, PICS added

Keep a close eye on your tune, b/c with the cometics you may be changing pistons next time. They are not so forgiving. The stock head gaskets should work fine as long as you don't detonate them. I'm always a bit weary using cometics unless your block and heads have been machined for them and are cleaned GOOD!

 

[Grimgrak]

Re: Blew head gasket, PICS added

I wonder if #4 is a weak link on these trucks I cracked my #4 cyl wall.

 

[Don W.]

Re: Blew head gasket, PICS added

Ended up with Fel-Pro 1032's. Heads are on and torqued. Now it's bolting stuff back on. Inj's are being flowed. Once I have them and their numbers I'll match them to certain cyls.