Thank you term! I tried telling him this months ago

 

Not entirely true.My buddys Turbo 2.2 I put together blew a chunk out of #4 and did no damage to the sleeve what so ever.The chunk of piston actually went through the exhaust valve and out through the turbo lol.He just put new rod,pistons,head gasket,and head studs while he was in there.The only way to find out is pull it apart or put a scope in it through the spark plug hole.

 

Good luck rebuilding it man! That's the name of the game though sadly. :/

 

thanks for the support guys. ill be taking the head off hopefully this weekend and taking pictures of the carnage

 

alright i have a friend with a nice shop that will let me use his tools.

can you replace pistons on an lnf without dropping the motor? on the all-data it instructs you to but i heard other people doing it in the bay. also tools other than basic hand tools to do this?

hopefully only the piston is damage and not much to the sleeve so i can just hone it and drop in new ones. prob going with these: K635M86 Wiseco Turbo Pistons Solstice Sky Redline LNF on eBay!

 

It is possible but dropping the motor is easier honestly. It can come right out within a couple hours then everything is so much easier to work on once it is out of the car.

 

Totaled Cobalts get recycled into Coors Light cans

 

his car is fine its his motor that became a coors light can haha

 

Yep I knew it was his motor, I just had to throw in the remark of what happens to totaled ones.

 

i can see this being a huge pain in the ass because doesnt the subframe have to be dropped as well and the motor pulled from the bottom? does anybody know what special tools i would need? does the cylinder need to be reamed?

 

you need to get the car way up in the air but you can drop down everything together as a rolling subframe. wheels and all

 

The cylinders definately need to be rehoned. There are 4 big bolts as well as the struts that have to be dropped to drop the motor and trans.

 

I havent retuned my car sice it was originally tuned and ive been throug 2 winters so far. This will be year 2.5 on the tune and i havent had any issues. Guess i had a good tuner

 

what is the cylinder ridge im reading about on all-data? they say it must be reamed out to get the piston out?

also do you guys know any service manuals i can buy for this or should it be pretty self-explanatory? im not very technical savvy myself but i have two friends that are going to help me that have rebuilt numerous motors.

i know im going to have to hone all four cylinders, should i get the 86.5 mm pistons instead then? (stock is 86mm) or would i be fine just dropping in stock spec?

 

you're honing an engine with not a lot of miles. you should barely have to remove any material. you won't know until you tear it apart and inspect though, the big question right now is if there is sleeve damage

 

Damn... sucks to hear. Good luck with the build.

 

^ thanks man.

im going to cry if there is sleeve damage. at that point, i would probably have to get a donor motor from a junkyard...

anybody ever burnt a hole in piston #4 on here, maybe pictures of the damage?