[Supras] I broke it

[berniek at technicaldevelop.com]

If there is a hole in the piston big enough to blow the oil out the small blowby hoses on the cam covers as quickly as claimed, a quick diagnosis would be to crank the engine with the igniter or EFI fuse disconnected.  Instead of a cyclic wow-wow-wow starter sound from each cylinder on the compression stroke, no compresson on one cylinder or more will result in the starter speeding up periodically.  Preferably, pull out the EFI fuse, or you may wind up with an explosive mixture in the crankcase if there is a hole in one piston.   

I don't recall who on this list had the problem of blown cam or crank seals but within the last year, someone had written in about it.  Any takers?

I do know that when I had a new GTO built up many years ago, it would occasionally blow the PCV valve out of the grommet in the valley cover.  That was with only 30K miles on the engine, which was normally aspirated, and used maybe one quart of oil in 1500 miles.  A pair of "Honest Charlie" valve cover breathers cured the problem.  That was enough proof for me that crankcase pressure does build up.  

        BernieK