controler Posted July 6, 2002 Report Share Posted July 6, 2002 The turbo on my Supra came from the jap-spec motor I dropped in, and it didn't have much shaft play so I didn't rebuild it. Well sometimes it makes a terrible screeching noise when I boost through corners. What could explain this? I have the turbo off the car, and visual inspection does not reveal any flaws in the turbo itself. There are no cracks in the 'hot' side. Also it doesn't look like the compressor blades are hitting the housing. Any help is appreciated... Quote Link to comment Share on other sites More sharing options...
Hwilli1647545487 Posted July 6, 2002 Report Share Posted July 6, 2002 You only get this noise when you are turning? What would make you think this is turbo related? Quote Link to comment Share on other sites More sharing options...
controler Posted July 6, 2002 Author Report Share Posted July 6, 2002 Yeah is almost only when taking a turn but, I might have gotten the noise once or twice when I was accelerating and the weight was being transfered, after a turn. But it would make the think I need a rebuild because the turbo isn't seated right, and probably is floating, possibly hitting the housing. But I don't know. Quote Link to comment Share on other sites More sharing options...
slow4now Posted July 6, 2002 Report Share Posted July 6, 2002 Hate to be Captain Obvious here, but are you sure it isn't just tire squeal? [ 06 July 2002, 07:45 PM: Message edited by: slow4now ] Quote Link to comment Share on other sites More sharing options...
Bahnstoermer1647545488 Posted July 7, 2002 Report Share Posted July 7, 2002 Wouldn't delicate turbine blades at 30-90,000 rpms be destroyed upon contact with ~anything~ ? My bro's Supra made a clatter noise with the strut brace that was supposed to fit, maybe that? Quote Link to comment Share on other sites More sharing options...
Guest relvinnian Posted July 7, 2002 Report Share Posted July 7, 2002 Originally posted by Hwilli: You only get this noise when you are turning? What would make you think this is turbo related? Quote Link to comment Share on other sites More sharing options...
20G TSi Posted July 7, 2002 Report Share Posted July 7, 2002 Originally posted by slow4now: Hate to be Captain Obvious here, but are you sure it isn't just tire squeal? I'll play capt'n obvious. Check your power steering belt. [ 07 July 2002, 11:33 AM: Message edited by: Blupastu TSi ] Quote Link to comment Share on other sites More sharing options...
controler Posted July 7, 2002 Author Report Share Posted July 7, 2002 Its only when I am under boost, and does not happen on every turn I take. It would make the think its the turbo for this reason, under boost. Quote Link to comment Share on other sites More sharing options...
20G TSi Posted July 7, 2002 Report Share Posted July 7, 2002 Originally posted by controler: Its only when I am under boost, and does not happen on every turn I take. It would make the think its the turbo for this reason, under boost.Sounds like a power steering belt. Under boost the motor is accelerating faster than normal (obviously), AND in a turn there is a greater load on the power steering pump. The quicker the steering wheel is turned, the greater load on the pump.... that could explain why it doesnt do it all the time. Dont just check the belt for tension, also check it for glazing (hardening). [ 07 July 2002, 12:27 PM: Message edited by: Blupastu TSi ] Quote Link to comment Share on other sites More sharing options...
controler Posted July 7, 2002 Author Report Share Posted July 7, 2002 That sounds like a resonable explaination, althought the belt was replace with my motor swap, and has probably 3,000 miles on it. Also I just checked it, and its tighter than my alternator/clutch fan belt. Quote Link to comment Share on other sites More sharing options...
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