2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Old 10-16-05, 02:47 PM
  #1  
Do Work

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Thumbs down Blown Turbo

Today I went and bought some fuel injector cleaner, because my car has been running rough, and filled up with gas and put in the cleaner. Then I went out and put some high RMP's on the car and she got really warm, but she still ran fine. So I was taking it easy lettin her cool down and i got into traffic. Then I went around a U turn and accelerated hard and the boost gauge barely moved and the car made this loud grinding/ humming noise. It was fine under high RMP, but once I had slowed down in the traffic and then a few minutes later accelerated, then it started. It doesnt sound good at all. I have recently had an oil change, and the oil level is fine. Post any thoughts.
Old 10-16-05, 04:06 PM
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Boost in..Apex seals out.

 
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Before thinking "blown turbo"..maybe go check the turbo? Remove you're coupler from the turbo cold-side, and look at it. See if any of the blades are gone / chipped like hell. Then, grab the middle of the turbo, and see if it can move, and if the blades can touch the sides of the turbo housing.
Old 10-17-05, 10:38 AM
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resU deretsigeR

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Or if it blew like mine, oil will dump out of the cold side of the turbo.
Old 10-17-05, 11:38 AM
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I

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mine was very worn out with 160K on it,
made the humming and sounded like a fire engine siren, and i had the oil all over the cold side also!

yeah check shaft play and see how well it spins...
Old 10-18-05, 01:46 PM
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Do Work

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It was dumping oil and making the siren noise so i went to mazda and they dont even want to work on it (I went to mazda because it was having other problems to, normally I wouldnt have) so im sending it to this guy that races Rx-7's.

How much is it to rebuild a turbo?
Old 10-18-05, 04:04 PM
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resU deretsigeR

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Send it to BNR and get it upgraded while you're at it. I think it's around 650
Old 10-18-05, 04:31 PM
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I break Diff mounts

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www.turbosdirect.com

Email them and say RCCAZ or AZRX7 sent you.

They are a local builder here in Phoenix but he does rebuild for very cheap on our. $200 range

He's a Garrett authorized dealer and a great guy.

Now as long as everythign has usable parts it should be a stright forward rebuild.

I'm local but they rebuilt mine over a a weekend. Dropped it off Friday morning and got it monday morning.

If you do send it to them and they find something wrong I can try and help you out with sourcing local turbo parts for a quicker build. I've got a S5 cartridge but no useable hotsides and one compressor cover from an S5.
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