I am in the process of ordering a 90 degree turbo hose. Referring to a past post, the part # is 3648-400-MK, Purosil, for the 500F.
I removed a blue hose, part # 90-400-16/E0601, 350F. This was supplied by WRV back in the glory days. This is a 6" X 5" leg elbow. The 6" leg was at the turbo end. Purosil confirms this is a special order.
The 3648 is a 6" X 6" leg elbow. A 500F is not available in a 6" X 5" configuration. Were there any conflicts with installing a 3648? There seems to be enough wiggle room to get this installed.
The inside of the hose has black streaks, as if oil had been placed near the turbo end opening and then blast it with a compressed air nozzle toward the CAC, creating thin rivulets of black (oil?). Is this indicative of a problem in the turbo?
Alpine Coach, 2007 Apex MDT