Turbo problem...rattling noise...
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Turbo problem...rattling noise...
well the problem is that my buddys non ball bearing turbo seems to have a rattling noise coming right from the turbo when his rpm is above 2,200 & below 2,900 rpm. if it's beyond 2,900 it sounds fine and if it's below 2,200 it's fine too. but between it rattles like fawk. It's getting oil for sure & oil pressure gauge is reading fine and it's water cooled too.
I though that it has some shaft play, but I jiggled the compressor blades and it's nice and tight no play at all not even a millimeter. It seems to spin fine too when I spin it with my fingers & it spins just like it should.
It's making 8 psi at full boost (that's what the wastegate spring is set at) and the car pulls strong as hell too.
I'm stumped....?????
Modified by CivicEJ1 at 8:45 AM 12/18/2004
I though that it has some shaft play, but I jiggled the compressor blades and it's nice and tight no play at all not even a millimeter. It seems to spin fine too when I spin it with my fingers & it spins just like it should.
It's making 8 psi at full boost (that's what the wastegate spring is set at) and the car pulls strong as hell too.
I'm stumped....?????
Modified by CivicEJ1 at 8:45 AM 12/18/2004
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Re: Turbo problem...rattling noise... (CivicEJ1)
sounds like its slightly out of balance...maybe a nick on the inducer blades inside the compressor housing, etc. take it apart and check the inducers and exducers.
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Re: Turbo problem...rattling noise... (Syner-G-Racing)
Sounds to me like it's just something rattling during that rpm range, like on any motor (turbo or not) Could be a loose nut or something, and that rpm range is where it rattles. But it could be anything, took me a while to find the internal wastegate flapper was a lil loose and rattled against the seat.
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