While reading another thread on a damaged EJ207, I figured I'd post a picture of my own damaged motor from a while back (last december)!

My blown up EJ20K :

 

Can you say Det-o-nation

 

Dang! What was the cause of the blow up?

/\rcanum

 

any more pics?

 

Geezus!! Is that the top of the piston?

 

Ouch!

 

What happened anyway?

 

Yeah man, please fill us in.

- N O R S E

 

No that was the top of the piston

 

Good job!

My thoughts are always if your going to break something, do it well.

Thats one hell of a job

~v6

 

Well, what I originally thought to be a cam clearance issue (which I thought I fixed by adjusting the clearance) turned out to be a bent valve that wasn't sitting properly...

The motor broke an exhaust valve while cruising at high speed on the highway... which subsequently broke the other valves and ate their way through the piston... I found 1 valve head in the oil pan!

I rebuilt the motor on a new EJ22T shortblock, and took out the holed piston and keep it as a souvenir!

Here's a picture of the cylinder head, notice how the hollow valve stems are still in there:

 

I just bought a new head, they're not that expensive if you get them in Japan... around $400.

 

That looks painfull!