So my exhaust note has changed and sounds like ****..Im blowing alot of oil out of my dipstick..Thoughts???

 

sounds like she has some issues. compression and leakdown test is your next step

 

I just hit 30,000 miles...This just pops up out of the blue..I wasnt running it hard..What would cause this?

 

blowby or clogged vacuum

 

PCV valve.

 

dibs on dual pass.

 

since we're all just throwing out random answers, check your throttle body.

But in all seriousness, like Blazin said, compression and leakdown tests would be the best place to start.

 

lol you bastard!
i hope it is a minor problem. i hate to see the lsj blown thread

 

hey, i need one.

 

yeah i agree with them, your car is shot. i got dibs on the meth kit

 

Well i did a compression test and it came back like this... 90-190-200-190...

 

#1

 

goodbye cylinder 1 or maybe something in the valvetrain

 

Cracked piston on #1. Sorry to hear it

 

Diamond pistons, arp head studs, and cometic gasket and your back on the road in a weekend

 

Could you be so kind as to drop me some links to buy these items? or tell me where to start looking

 

I think some of the vendor on this site have those items.

 

I think OTTP, ZZP, and TTR sell that stuff. Between the 3 you should find it all

 

OTTP has all of it at great prices...

 

PM us we can get you the hook up

 

So i pulled my valve cover to see if there was any visible damage.. Everything looks ok from the top..All my plugs are clean and burning evenly...The Compression test came back 90-190-190-190. Is there anything else i can check or anything else it might be besides my #1 piston? The car still runs as strong as it ever has..Thoughts??

 

best bet is to just pull of the head with a 100psi difference number 1 is gone

 

Anyone got a link to a HOW TO on pulling the head and changing pistons?? Me and this search engine dont get along lol

 

+1 for aaron at turbo tech racing. Bought my forged pistons, rods, ferrea valvetrain and spec clutch from him for my cavalier.

 

Cracked ringlands on #1 would be my guess.

Fix it sooner than later... Mine had cracked ringlands on the #4 (and #3 minimally).. ran like that for almost a year (X didn't realize how bad the blow by really was), that, and he didnt care cause he wanted to rebuild it anyways. When we pulled the motor out and got around to rebuilding it, saw that the blowby steam cut the cylinder wall over time and melted that area of the piston. Don't want to have to resleave your block on top of it.

GM's build book has some good info on installing pistons. I used the GM build guide (to 300) + Haynes manual + Alldata, as a refrence when I rebuilt my LSJ. All contain torque specs and some step by step instructions in case you happen to need that.