TURBO squealing

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TURBO squealing

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Mitsubishi Forum >> Tech Help and Information >> Nitrous, Super Chargers, & Turbos >> TURBO squealing

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TURBO squealing - 10/19/2007 7:39:09 PM

CelciuS209

Posts: 94
Joined: 10/5/2007
Status: offline

Does anyone know why my turbo is squeling when i take off it does it for about 5 min when i drive it hard then i think the car warms up and it stops. then it will set for 5hours for work and it does the same thing when i take off and when it warms up it stops??

< Message edited by CelciuS209 -- 10/19/2007 7:41:16 PM >

Post #: 1

RE: TURBO squealing - 10/19/2007 7:41:27 PM

TheAdvocate

Posts: 2293
Joined: 8/18/2005
From: Baraboo, WI
Status: online

If its a high pitched wissle it may be death whine, which means the turbo is on its way out... Also you could have a boost leak somewhere.. Does it seem like your running at normal boost? Have you noticed any decrease in power?

_____________________________

-Project 99 GSX-
Built 6 bolt
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(in reply to CelciuS209)

Post #: 2

RE: TURBO squealing - 10/20/2007 12:08:55 AM

CelciuS209

Posts: 94
Joined: 10/5/2007
Status: offline

Yea turbo boost feels like its running fine i think my turbo might be out.

(in reply to TheAdvocate)

Post #: 3

RE: TURBO squealing - 10/20/2007 2:24:55 AM

silvercoupe97

Posts: 3012
Joined: 11/10/2006
Status: offline

Why don't you remove the intake pipe and check? You'll be able to see any tracks on the inner walls of the intake pipe, you'll be able to move the wheel around. Bro, don't make guesses, just go check.

One more thing, do you turbo time it or do you just shut it off after driving it around? Do you routinely change the oil at or around 3k? Do you use the correct oil or do you use cheap oil? You could have caked up oil in the passage way of the turbo. What kind of car is this and the turbo?

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Thanks,
John
6 bolt/2g head,1G rods/2G pistons,FPBig28,MBC,Forge 1G DV,alky inj,AFPR,255lph,780cc, 3" turboback,Centerforce,4 spider,FMIC, Prosport Boost&EGT gauges,AEM wideband,DSMlink, AGX/Skunk2

(in reply to CelciuS209)

Post #: 4

RE: TURBO squealing - 10/20/2007 2:36:10 PM

CelciuS209

Posts: 94
Joined: 10/5/2007
Status: offline

I use Q motor oil yea around 3k and its a gst i can remove the intake but how would i be able to look in the turbo??

(in reply to silvercoupe97)

Post #: 5

RE: TURBO squealing - 10/21/2007 5:55:47 AM

TheAdvocate

Posts: 2293
Joined: 8/18/2005
From: Baraboo, WI
Status: online

You can see the wheel.. Check the wheel and see how much shaft play you have and also check the condition of the fins.

_____________________________

-Project 99 GSX-
Built 6 bolt
Crower rods
ross pistons
Built Head
FP3x Cams
Venom Intake
AEM Fuel Rail
850 Injectors
*Looking for Sponsors*

(in reply to CelciuS209)

Post #: 6

RE: TURBO squealing - 10/21/2007 11:52:17 PM

CelciuS209

Posts: 94
Joined: 10/5/2007
Status: offline

Well am not a exp on turbos i just got in to imports am gonna take a look 2marrow so watch should i be looking for?

(in reply to TheAdvocate)

Post #: 7

RE: TURBO squealing - 10/22/2007 2:08:02 AM

silvercoupe97

Posts: 3012
Joined: 11/10/2006
Status: offline

Once you remove the intake (your car should not be running by the way), move the compressor wheel up, down, in, and out. If the wheel moves enough to touch the inner walls of the compressor housing, bad news. If the compressor wheel moves in and out to the point that you hear it click, bad news. If it's flopping around, it's time for a new turbo.

Was it a millimeter guys? I vaguely remember that universal specs for wheel movement was a millimeter or something really, really tiny.

Btw, welcome to the tuner world