Throttle Shaft Leaks - cost me ALL boost?
I am new to supercharging. Bought a rebuilt SN98, looks good, turns smooth, impeller looks good.
Installed it on my 5.0, rebuilt my old Holley 4150 to blow thru. I decided not to mess with the throttle shaft bushings even though they were a little loose. No Boost. :confusion:
Checked for leaks with pressure test, cleaned everything up except throttle shafts still leak. Could this cost me ALL of my boost?? Checked with 2 gauges while driving, 1 on Paxton, 1 on intake manifold. Tons of vacuum- not even 1 psi boost. Impeller at intake side cannot be spun by hand when belt is on. Supercharge sounds nice, almost no sound at idle (but airflow shown by leaks with soap test), slight whine at 4k. Can all my problems be throttle shaft bushings??