Hole in piston !!!!

[92-eagle-talon]

http://www.dsmtuners.com/forums/dead-end-threads/298562-resolved-heavily-damaged-spark-plug.html

So I said I was going to get a honda. That didn't happen. My love for the talon is too strong. I pulled the head and found that 2 valves broke off and put a hole in the #2 piston.
I dropped the oil pan and found all the pieces. My god it was devastating ! Well, I'm not giving up ! My question is can I replace the piston, put on a new head and be fine ?
Or do I have to get a new engine ? The only damage is to the #2 piston and 2 of the
#2 valves. Please tell me there's hope. The other 3 cylinders look perfect. What should I
do ?

 

[bluegs03]

most likely you will have to have the cylinder's bored out .20 over get new pistons rings, valves and valve seals and that should take care of it. When a piston detonates as amazingly as yours did then all of those fragments will scored and damage the wall of the cylinder causing you to grind it away to have a fresher cylinder wall

 

[92-eagle-talon]

suprisingly somehow the cylinder walls are in perfect condition.
I'll post pics soon.

 

[crimsondragon]

You don't need a new head. Just replace the valves. Since you're going to have the engine apart, might as well invest in forged internals.

 

[silver bullit]

Well post em already.

 

[92-eagle-talon]

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[kwheeler]

The chances that the #2 cylinder wall is not scored is pretty much 0.
You could only deal with cylinder #2 without boring and hope it works but I would pull the motor, have it thoroughly cleaned, bored .020 over, replace all bearings and go from there.
Not only is the cylinder wall probably scored but it's also extremely likely metal was circulated through the motor right after the piston was destroyed. That metal will be embedded in the bearings and will still be in the oil journals.
By not tearing it down you're just asking for more damage.

kwheeler

 

[crimsondragon]

That piston surely went out with a bang.