I had an aircraft engine with a puzzling low oil pressure problem after overhaul. After much consternation it was torn back down. The turbo piston squirter nozzles had been left out. This was a Lycoming factory overhaul. Edward Lowe Seattle, WA 82 Westy Diesel upgraded to 1.9lt. Turbo 92 Cabrio 1.8lt gas 97 Passat Tdi 02 New Beetle Tdi