OK folks, this is a little strange, so here we go.

Drove the LT1 RX7 about 300 miles to Gainesville Saturday. Played a little, but mostly in higher gears, not revving it hard.
Everything was fine, car ran like a champ as always.
Got it to my buddys house in Gainesville, parked it.
Came back out two hours later to go somewhere and realized the parking lights had been on--battery was down a little. So we push started it.
As SOON as it started a LOUD clattering was obvious...
Shut the motor off, pulled the valve cover, discovered one BADLY bent pushrod on cylinder 6 (45 degree angle, almost).

Ordered a whole set, figured I'd replace them all. Got to that cylinder, was setting the lash as I went, and couldnt get the intake valve to come up all the way without the rocker on.The spring stays maybe a third of the way down.

Removed the head--problem is a dropped valveseat. Only thing I can think of is the engine was pretty warm when I shut it off, and it heatsoaked to the point where the seat dropped. Piston is nicked, not that big of a deal, I'll just have to clean it up.


Heres damage pics.They suck, ****ty webcam...but..
You can clearly see the seat keeping the valve from closing.













Here is the rocker tip. Chewed up badly and will not roll.

 

Was there any machine work done to the heads or were they completly stock?

 

Machine work HAD been done,but not by me, by the previous owner. I am assuming he had them gone through prior to rebuilding this engine right before I got it.

 

Beat me to it, seems like an improperly installed seat. Now you have to ask if you can trust the other 15 seats.

Rich

 

Sounds like more of a reason to send em to Lloyd Elliot.