gst piston queston

[money42211]

Have a question about cinder number 3. Had low compressing took head of to see why.Piston in cinder 3 is rounded on eadge rest are flat.Why and what would cause this is this my problem? Head check out fine.U could smell a sweet smell when run and smoke would come in vents when heat was on no heat thought was a head gasket

 

[BogusSVO]

Post some pics, one of each piston in the block.

 

[money42211]

Wont let me

That's all it will let me but look around the eadge.

 

[gorf]

WOW that piston looks like it is melting around the edges.
Does this car have a serious over-heating condition?
Have you been running a lot of boost, bigger turbo with no fuel upgrades?

 

[money42211]

No over heating and its stock my air fuel gauge reading good.Would that be my compressing lost

 

[Black-Out]

That engine was run WAY lean for WAY long......time for a rebuild.........what mods do you have and what fuel mods do you have? because that isn't looking like just head gasket failure brotha-

 

[Cdc1221]

Yep most likely a bad injector caused that. Either way, time for a rebuild....

 

[money42211]

So I need a new motor and its stock was a bad injector bought car like this.put new injector in ### one was not working.

 

[BogusSVO]

Looks like you have the 6 bolt rods with the 7 bolt pistons.

If that is the case, you now have 22mm wrist pins.

 

[money42211]

What my gsx was like that this gst from what I no is stock.Do I need a new motor is that my compressing problem.

 

[BogusSVO]

Either pull your engine and have the block inspected and install new pistons. Or get another short block, long block or engine.

That piston is fried and yes will cause low compression.

 

[fstfbdy]

Like everyone else said piston got way to hot. starting to mellt. How low was the compression? Im just curious at this point.

I would deff. do a rebuild.

As for your sweet smell and smoke out the vents. Sounds like a heater core on itw way out. Check the floor for coolant or signs of leading.