My SC chewed up one of its valves and jammed a cam. I was roaring out of a light (as I usually do) and heard a bang bang as I neared redline in first. The noise quickly stopped and it was time for a tow-truck. Car history at the end of this post.
Now it is all out and apart, and ready to teardown in earnest. I'll post here as I make progress. The two goals are:
1) Determine why it broke.
2) Prepare it for many years of excitement.
Current state is down to the long block and cam covers off. I've fished a good number of metal bits out, and more fall out each time I rotate the engine. I'm working on acquiring the Stomski tool to remove the cam shafts, so in the meantime I'll probably clean up removed parts.
Any ideas on what to watch for, measure, and photograph along the way are appreciated. I'm bagging and labeling each thing as it comes out, and have 6 bins labeled for each cylinder's parts.
There was a lot of oil in the heat exchanger for bank 4-6. Also some oil flooding when looking down those valves.
Photos of current state:
Videos from yesterday (before cam covers came off)
Video from the top. Three is the boomed cylinder.
Video from the bottom.
History!
This car has 280K miles on it. Originally a California car, its first owner was a female doctor who put 200K on it in 20 years, and then sold it to an Air Force mechanic, this forum's very own Leland Pate (
https://forums.pelicanparts.com/members/1761.html). He is a big SC fan and founder of the 911 SC World Domination Plot and
Dr. Pate's 101 Tips.
He rebuilt the engine and made performance improvements (head studs, larger bore, higher compression, etc). You can see his many rebuild posts on this forum, as well as his eventual sale post. Third owner was an occasional Pelican, and also sold it via this forum to me.
I'm the 4th owner, and it became mine in 2012. Since then I have made lots of small and moderate fixes, including transmission rebuild, CIS rebuild, fuse box, and fuel lines. But this is the first time in the block.
All things considered, it should have lasted a good many more miles before a rebuild. I hadn't adjusted valves in a few years, I'm not sure if that could have been a factor.
I feel fortunate to have 25 years of posts (the forums records don't go past the year 2000), and hope to make many more years of posts.