2001 eldorado,2008 DTS,2005 XLR, '96 eldo,'95 eldo,' 89 eldo,'78 eldo,'11CTS-V
What drives the Northstar oil pump? I know it's crank driven, but what locks it to the crank? There's no flat or key. Is it just the harmonic balancer jambed up against the pump that makes it work? Seems kinda Rube for an advanced motor.