i blew my evo 7 engine, and i dont know why

i need help with my issue, because i need to find the reasons
and i want to know what to do to rebuild the engine

1) I have stock engine, stock turbo and i use stock boost(18psi)

 

How did the engine blow?

Rod knock?, rod break and come thu the side of the block?

Crank walk?
Blown HG?
Blowing smoke all the time?
Timing belt break?
Melt a hole in the piston?

What clutch is installed?

How many miles on the engine?

Pics of the damage?

 

melt and hole in the piston #1

 

ill take pics tomorrow, the spark plug ground electrode got broken

 

melted a hole in piston 1?

 

yes,,, piston #1 a hole and scratched the cylinder

 

definatly got to hot in that cylinder. check the injector in that cylinder. sounds like the fuel injector took dump and that cylinder leaned out and got super hot!

 

the spark plug groud electrode got broken

 

The hole in the piston, and the busted spark plug are both from a lean condition in the cylinder.

Have the fuel injector tested.

 

how it can be tested?>???

 

Shoot me a message, I know someone who will test it for decently cheap.

 

Some NAPA parts stores have a Fuel injector test center, so call around, or send them off to one of the Fuel injector suppliers.

But from the sounds of it, you will need a new set of pistons, and have the block bored, depending on wear, and how deep the scratch in the cylinder is.

The head may have to be gone thu also, due to the melted aluminum that has spattered on the valves, and seats.

 

afortunately the head is in perfect condition, i live in Dominican Republic i dont know where to test my injectors.

 

get your injectors flow tested you went lean

 

it depends what company they are you can send them back to them and they will flow test them. i know ID, bosch, and fic flow test injectors