Silber’s 2002 Boxster S Engine Build

[Silber]

Well that was quick. I pulled the intake and found all this stuff in there. Pieces of head, valve, and piston ring.

https://adobe.ly/2XhCdDa

Once I got the intake off I could look down and it was indeed number two that had failed. At first glance, it looked like the cylinder walls were not damaged. Now I’m not so sure, I got out my El cheapo borescope, and it looks like the wrist pin is missing so the rod was moving free in the cylinder smashing the remains of the piston. Mainly I’m concerned about the crank and crank carrier, if those are the only thing salvageable out of this engine I will be ok with that.

At this point I am absolutely 100% certain this engine is not re-buildable just by putting heads on it. Looks like it’s a 3.8 for me.

Silber

[Quadcammer]

Originally Posted by Silber

Well that was quick. I pulled the intake and found all this stuff in there. Pieces of head, valve, and piston ring.

https://adobe.ly/2XhCdDa

Once I got the intake off I could look down and it was indeed number two that had failed. At first glance, it looked like the cylinder walls were not damaged. Now I’m not so sure, I got out my El cheapo borescope, and it looks like the wrist pin is missing so the rod was moving free in the cylinder smashing the remains of the piston. Mainly I’m concerned about the crank and crank carrier, if those are the only thing salvageable out of this engine I will be ok with that.

At this point I am absolutely 100% certain this engine is not re-buildable just by putting heads on it. Looks like it’s a 3.8 for me.

Silber

that case is definitely not going to be usable. Crank and carrier are crucial although I suppose you may be able to align hone the carrier to work with a different crank or vice versa.

[Silber]

Originally Posted by Quadcammer

that case is definitely not going to be usable. Crank and carrier are crucial although I suppose you may be able to align hone the carrier to work with a different crank or vice versa.

The low mileage case I bought to rebuild had cylinder damage that made it unusable for a re-ring, but not enough damage it wouldn’t be rebuildable by LN. The seller let me keep it so I’ll probably give that one to LN.

Looking with the bore scope, the rod was not visibly bent, and there was no visible damage to the crank carrier. I am hoping I got lucky, but will definitely check everything!

Silber