Topic: Undressing Alyssa Milano after Gingerman
Nothing dramatic just quit (with puffs of white smoke barely visible in mirror after 2:05 mark):
https://www.youtube.com/watch?v=sE9kExKENmo
So, we thought it was a blown head gasket on Sunday. #2 plug wouldn't come out and #4 had no compression. One little chunk of metal came out when I drained the 'oil' (mostly water) at the race. Then after a day's reflection, the thought of a cracked cylinder liner came up.
Compression check at track, but actually just pumping water out.
https://www.youtube.com/watch?v=3RIsOyOXa-M
https://www.youtube.com/watch?v=P72fuutDC-M
I got #2 plug out Wednesday night. Probably not a head gasket problem...
Undressing begins... A few bits were rattling around in the intake that looked like pieces of a valve seat
Ventilated #2. Intake vales on #1 and #3 did touch corresponding pistons.
New Alfa Romeo design of inverted valve, directly actuated by piston... Direct access to cooling jacket to keep combustion temperatures low, for emissions.
I haven't pulled the driver's side head off (have to remove brake booster), but got enough space to look/put hand in and piston and liner in #4 seem OK.
It looked like right bank camshaft was off by a tooth as I was dissassembling. The tensioner wasn't broken, so I don't know if skipping a tooth caused it all, or if skipping a tooth was the result of something else. Driver on Sunday mentioned it didn't seem to be running right during his stint, not bad but not as peppy as he remembered, and it didn't sound like normal running down the straight. But, the muffler had developed a huge hole, so I just figured that was why it sounded different.
TeamFRAG: 1987 Alfa Romeo Milano - 'Alyssa Milano'.