busabusa Posted May 11, 2009 Share Posted May 11, 2009 Car background: 2005 5EAT, 52K miles, stage 1 since 48K. After sitting in stop & go traffic in a parking garage for 15 minutes, I was leaving the city to get on the highway. Before the entrance ramp, there is a large hill that I accelerated from up (25 mph to 50 mph). While accelerating up this hill, my car made a noise I've never heard it make before. To me it sounded like a squeal coming from the transmission. I accelerated a few more times and its still making this noise. Did I overheat the transmission? Burn a gear? Torque converter toast? Please let me know what you think next step is here. Thanks, Busa Adventures in Turbomachinery Link to comment Share on other sites More sharing options...
mwiener2 Posted May 11, 2009 Share Posted May 11, 2009 Possibly turbo took a dump. This isn't gonan be an easy one to diagnose over the net. You're gonna have to take it in. My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
fishbone Posted May 11, 2009 Share Posted May 11, 2009 You might want to diagnose it ASAP. If it's the turbo that took a dump, you most definitely don't want debris ingested in your engine. Does the pitch change if you have it stationary in Park and rev? Like the previous poster said, it could be a lot of things. Have it checked out. Link to comment Share on other sites More sharing options...
finalburden Posted May 11, 2009 Share Posted May 11, 2009 Is it still under warranty? Link to comment Share on other sites More sharing options...
busabusa Posted May 11, 2009 Author Share Posted May 11, 2009 Pretty sure its not the tranny anymore, had a tranny tech ride along. I don't think its the turbo neither as I'm still making boost. One thing that is weird is that their is reddish dust near the a/c pulley. The belt looks ok. The only time I hear the noise is under load, like when I go uphill. Could this be the clutch on the a/c? Thanks, Busa Adventures in Turbomachinery Link to comment Share on other sites More sharing options...
Platinum_Racing Posted May 12, 2009 Share Posted May 12, 2009 A blown turbo can still make boost, it's the bearings that are gone not the impeller. Link to comment Share on other sites More sharing options...
underpowerd Posted May 12, 2009 Share Posted May 12, 2009 a bit of the red dust around there is typical, i believe it is powdered oxidation. Link to comment Share on other sites More sharing options...
busabusa Posted May 12, 2009 Author Share Posted May 12, 2009 Assuming its the turbo bearings, is the turbo repairable or not worth it? Adventures in Turbomachinery Link to comment Share on other sites More sharing options...
atc5 Posted May 12, 2009 Share Posted May 12, 2009 Assuming its the turbo bearings, is the turbo repairable or not worth it? You sure you don't have something simple like an exhaust leak somewhere? IHI turbos are not rebuildable. Your options are to buy another (used) VF40, or a VF52 as legacy fitment options. I would suggest a VF52. Link to comment Share on other sites More sharing options...
jasone Posted May 12, 2009 Share Posted May 12, 2009 IHI turbos are not rebuildable. Totally false. IHI won't do it for you, or sell you the parts, but they're perfectly rebuildable. I had a local place do mine when it shat. Now I have a standby. As far as the sound goes, does this happen only when you're making boost? When I blew out the vane on my VF-46, it made a whistling/squealing sound under boost and only made 15.1psi versus the normal 16.8psi. Get a borescope and stick it down your intake hose and check out the vanes on the compressor side. Have to pull the DP for the compressor side, and inspect your WG too. Link to comment Share on other sites More sharing options...
atc5 Posted May 12, 2009 Share Posted May 12, 2009 Totally false. IHI won't do it for you, or sell you the parts, but they're perfectly rebuildable. I had a local place do mine when it shat. Now I have a standby. Good clarification. You are right that VF series rebuild parts are not readily available. Where did your local place find the VF series turbo (center cartridge, etc) rebuild parts? Link to comment Share on other sites More sharing options...
jasone Posted May 12, 2009 Share Posted May 12, 2009 Good clarification. You are right that VF series rebuild parts are not readily available. Where did your local place find the VF series turbo (center cartridge, etc) rebuild parts? I'm not sure -- they found a fan for the compressor housing that was exactly the same, or very close, re-balanced the shaft, and slapped it all together. I didn't hurt the journal bearing, or break any seals, so I only needed a wheel. IMO it wouldn't be too hard to find a center section that would work, the bigger issue would be finding a water and oil-cooled section that would work. We're digressing pretty far here, though. Link to comment Share on other sites More sharing options...
Jerboa113 Posted May 12, 2009 Share Posted May 12, 2009 for resolution. you could still be making boost even if the turbo was going out.. at least in the short term.. it might not make as much tho? Have you checked your drive belt? I know that sounds trivial compared to what others are saying but mine made weird noises when it was shredding itself and started around your mileage. I have a gatorback goodyear belt on there now. Our oem belts are mitsubishi... no wonder they fail so early. "The penalty good men pay for indifference to public affairs is to be ruled by evil men." - Plato Link to comment Share on other sites More sharing options...
jasone Posted May 12, 2009 Share Posted May 12, 2009 They aren't Mitsubishi. They're Mitsuboshi. Link to comment Share on other sites More sharing options...
Jerboa113 Posted May 12, 2009 Share Posted May 12, 2009 oh. well I still like my goodyear gatorback. "The penalty good men pay for indifference to public affairs is to be ruled by evil men." - Plato Link to comment Share on other sites More sharing options...
jasone Posted May 12, 2009 Share Posted May 12, 2009 Don't worry, I thought the same thing the first time I glanced at the belts. Link to comment Share on other sites More sharing options...
busabusa Posted May 13, 2009 Author Share Posted May 13, 2009 I'm thinking first action is to replace the belts, then if the noise is still there, its turbo upgrade time! Adventures in Turbomachinery Link to comment Share on other sites More sharing options...
Jerboa113 Posted May 13, 2009 Share Posted May 13, 2009 just give them an inspection and make sure all the grooves are there, you can twist it a bit and see. If you dont see anything tho its still worth a try. Mine started to go around your mileage and the fix is cheap and fairly easy. My reasoning for this is when my belt first started to go shreds of it would get stuck in the pulleys and would make clicking and squealing sounds that were rpm dependent. For the longest time I thought something was wrong with my turbo because I couldn't visually see anything wrong, and it wasn't like any normal engine noise I had heard. It eventually went away when the belt chunks were forced out of the pulleys. "The penalty good men pay for indifference to public affairs is to be ruled by evil men." - Plato Link to comment Share on other sites More sharing options...
busabusa Posted May 13, 2009 Author Share Posted May 13, 2009 You wouldn't by chance happen to know the goodyear p/n's for these belts would you? Adventures in Turbomachinery Link to comment Share on other sites More sharing options...
Jerboa113 Posted May 13, 2009 Share Posted May 13, 2009 I have the box in my trunk. I will check it in about 30 minutes when I go to lunch. "The penalty good men pay for indifference to public affairs is to be ruled by evil men." - Plato Link to comment Share on other sites More sharing options...
Jerboa113 Posted May 13, 2009 Share Posted May 13, 2009 I'm sorry.. it started pouring rain before I could get to this. I'll get to it when I get home. "The penalty good men pay for indifference to public affairs is to be ruled by evil men." - Plato Link to comment Share on other sites More sharing options...
busabusa Posted May 15, 2009 Author Share Posted May 15, 2009 I think the Goodyear p/n = 4040332. Also, I'm going to check the tensioner and pulley in case thats whats shot as the belts look fine. Adventures in Turbomachinery Link to comment Share on other sites More sharing options...
Jerboa113 Posted May 15, 2009 Share Posted May 15, 2009 ack.I'm so sorry.. I keep getting distracted! the part actually says its for a subaru 3.2L. Autozone can drill down in their system and find it pretty easily. Its about $10. "The penalty good men pay for indifference to public affairs is to be ruled by evil men." - Plato Link to comment Share on other sites More sharing options...
scoobydoobie Posted May 15, 2009 Share Posted May 15, 2009 ^ you mean 3.3L? Subaru has never made a 3.2L motor Link to comment Share on other sites More sharing options...
Jerboa113 Posted May 16, 2009 Share Posted May 16, 2009 sure.. it was an odd size. I only know 2.0 2.5 and "an h6." "The penalty good men pay for indifference to public affairs is to be ruled by evil men." - Plato Link to comment Share on other sites More sharing options...
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