I replaced my vf40 at 142,000 miles when the whine changed to a whistle.
I posted a thread here, 142,000miles on OEM turbo. with a video showing the shaft play.
I had just the slightest hint of the blades hitting the housing. I just installed the vf52 and started the engine
I did clean the oil cooler when I replaced the shrt block this past May.
How much damage did the blades do to the compressor housing ?
OH BTW I have both banjo filters removed.
216,000miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.
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