catastrophic failure

[Frank M]

Somehow your engine ingested a small solid object. Probably when you had the air intake exposed.
After ingestion, the object sat at the bottom of the cylinder during a shutdown and restart. When it got wedged between the head and piston is when it broke the liner.
This object also damaged the plug at one point.

Hydroloc bends connecting rods and the symptom will be low compression after the bending takes place.

[csu15919]

man, that porsche tech didn't tell me anything that i didn't already know, or anything that you guys haven't already mentioned. i kinda think it frustrated him a little bit, because he was finally like "man, we need to just take this thing out of here." the rods all looked good, so we eliminated the bottom end from the equation. lol, i've been going through my tools expecting to find a socket missing or SOMETHING! it's driving me nuts. the tech was like "this is so weird, everything sounds so smooth, even when the motor jams, it's almost like it should just work!" he didn't really have much time to stick around, but he said he'll come back by this either this evening or saturday.

he made somewhat of a valid point also, in reference to a lot of our local shops. it's hard to find a shop around that'll actually take the time to figure it out and most will just say "time for a new motor! porsche didn't design these things to be fixed!" i may pick at it a little more today depending on the weather. i've only ridden my motorcycle once this year, so i may just try to enjoy myself!

[mn box s]

One thing that has not been mentioned... Journal bearings if you spin a bearing (2 "C" shaped metal pieces that float between the rod and crank). These damn things are known to slide under each other which will cause the throw to be longer in both directions. Your rod may look fine or even be fine so just double check to see if this has happened. Common fix for this as follows: new custom bearings to be machined, crank machining, new rod, head to be decked and new piston. I read the bottom was fine, I'm just saying take another look for this if it has not been done. You described this problem.

[blue2000s]

So what ever happened here?