Valve seats kicking my butt

[Linkstar07]

So I did a head swap from an E88 to a N47 because my #3 intake valve seat fell out and the valve seated it for me cockeyed. Eeeeeeezzz gave me a used head to put on(Thank You!) and again, I have no compression on #1 piston. Took off valve cover and the intake valve is noticeable lower than the rest. I dont know for sure that the seat fell out on this one but is this a common problem on these cars? The valves were all seated properly when I installed the head. As you can imagine I'm fairly frustrated right now. (so is my back, )

[jmortensen]

Is it possible that the cam just has that valve open at the angle it happens to be at right now?

Valve seats don't normally fall out of the head, and I can't ever say I've heard of that happening to an L series engine. I have seen a valve seat fall out once when it happened to me, and it was a result of me buying the cheapest remanned head I could find. When I took it back they wanted to stake the seat back in... sheesh. Talk about crappy workmanship. Needless to say I got a new head.

[Linkstar07]

The valve is stuck in the open position even with the rocker arm off. I tapped it with a hammer a few times but it wont return to the closed position. It probably isnt a bent valve because it looked fine when I put the head on and there were no abnormal mechanical noises.

[jmortensen]

Definitely SOUNDS like a bent valve. Maybe you got the cam timing wrong or something? If the seat isn't hanging on the valve then I doubt it's the fault of the seat. Hammering on the valve is just going to screw up the valve guide, so don't do that anymore. You're going to have to pull that valve spring anyway, so pull it off and set the valve on a table and roll it. I bet it wobbles like crazy because it's bent.

[Linkstar07]

Timing is right. Triple checked it. after i put the head on and torqued it down, I rotated the engine a few times to make sure everything was ok. Thats when I noticed the valve. It acted exactly like my other head that dropped its seat. I still have my old E88 head. Anyone know what I should expect to pay to have the seats replaced? Are oversized seats hard to get ahold of?