Hi,
This topic is geared towards the ones that have done some engine rebuild and/or replacement or have studied the ins/outs of engine combustion...
History:
2003 Ford Focus SE
2.0 SPI (••••ty per inch) engine.
179k miles and always maintained, it shows it.
Bought it as a project/sorta run it to know more...
$400 from a guy with many new parts installed and clean in/out.
After pulling the head in five hours or a bit less due to my laziness i found this on the piston #4 and yes the head is toasty, obviously:
As you can see, the piston surface got chewed up a bit on by the bad valve seat that failed.
Ah, if i get a new engine head on the car and put it on this block, can they both survive for a while?
Just a question, i am throwing ideas, i like to study this stuff...
Thanks all.
This topic is geared towards the ones that have done some engine rebuild and/or replacement or have studied the ins/outs of engine combustion...
History:
2003 Ford Focus SE
2.0 SPI (••••ty per inch) engine.
179k miles and always maintained, it shows it.
Bought it as a project/sorta run it to know more...
$400 from a guy with many new parts installed and clean in/out.
After pulling the head in five hours or a bit less due to my laziness i found this on the piston #4 and yes the head is toasty, obviously:

As you can see, the piston surface got chewed up a bit on by the bad valve seat that failed.
Ah, if i get a new engine head on the car and put it on this block, can they both survive for a while?
Just a question, i am throwing ideas, i like to study this stuff...
Thanks all.