Cracked turbo

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Cracked turbo

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Mitsubishi Forums >> Tech Help and Information >> Nitrous, Super Chargers, & Turbos >> Cracked turbo

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Cracked turbo - 11/14/2006 6:05:23 PM

GrayGST

Posts: 20
Joined: 5/31/2006
Status: offline

I just picked up a 14b for nothing,free. great shape except i think they threw it down because there are two cracks in the exhaust side. they are hairline cracks. one starts at the dump tube and goes inward and the other one just extends a little past the dump tube. but when the flapper closes it seals it off. my question is do you think it would hurt anything , and if so what would be the out come. thanks

Post #: 1

RE: Cracked turbo - 11/14/2006 6:12:17 PM

silvercoupe97

Posts: 3420
Joined: 11/10/2006
Status: offline

The bad.....exhaust leak, it may throw off your o2 sensor.
The good...you've got a good turbo.

You can probably get those cracks welded shut. Just make sure that the welder doesn't do a crap job. At least make it somewhat professional. My motto, if the job looks good, then the chances are the job was done good.

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Thanks,
John

(in reply to GrayGST)

Post #: 2

RE: Cracked turbo - 11/14/2006 7:31:58 PM

GrayGST

Posts: 20
Joined: 5/31/2006
Status: offline

yea i have a friend who will weld it for me, but if nothing to serious would come out of it i was just gonna put it on. i didnt really think it was all that bad, but a second opion doesnt hurt. and yea a 14b for free is a lot better than my t25

(in reply to silvercoupe97)

Post #: 3

RE: Cracked turbo - 11/14/2006 8:54:03 PM

silvercoupe97

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Joined: 11/10/2006
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Cool, just make sure that it doesn't have any significant shaft play before you put it on, because you will have to go through a modification just to put that turbo on.

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Thanks,
John

(in reply to GrayGST)

Post #: 4

RE: Cracked turbo - 11/18/2006 9:25:10 AM

spyder4g63t

Posts: 184
Joined: 8/16/2006
Status: offline

also make sure to check turbo seals...if you put it on and theres massive smoke(white) there thats the reason..it happened to me...i thought it was a head gasket...but it was my turbo seal being broke

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mods...fidanza clutch and flywheel..greddy rs b.o.v....greddy turbo timer...apexi n1 exhaust and downpipe..turbo xs hpb...urethane motor mounts..fidanza short shifter..

(in reply to silvercoupe97)

Post #: 5

RE: Cracked turbo - 11/19/2006 6:06:57 PM

GrayGST

Posts: 20
Joined: 5/31/2006
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everything else seems to be ok no in and out side play, very little side to side play. im just gonna put it on and see were it takes me. again for free cant go wrong.

(in reply to spyder4g63t)

Post #: 6

RE: Cracked turbo - 11/19/2006 6:10:36 PM

silvercoupe97

Posts: 3420
Joined: 11/10/2006
Status: offline

What is

quote:

very little side to side play

how many millimeters?

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Thanks,
John

(in reply to GrayGST)

Post #: 7

RE: Cracked turbo - 11/19/2006 6:51:26 PM

GrayGST

Posts: 20
Joined: 5/31/2006
Status: offline

maybe two three i think it barely moves

< Message edited by GrayGST -- 11/19/2006 6:54:42 PM >

(in reply to silvercoupe97)

Post #: 8

RE: Cracked turbo - 11/19/2006 6:58:07 PM

silvercoupe97

Posts: 3420
Joined: 11/10/2006
Status: offline

2-3mm seems a bit too much for me, lol. I get barely 1/4 of a MM of play on my turbo before the motor's initial start up. That means that there's no oil pressure in there to keep it from moving around.

Give it a try if you feel comfortable with it and don't forget to prime it before you start the motor. Also get back with us after it's all warmed up on how much play you have then.

Make sure that the blades aren't touching the compressor housing either.

< Message edited by silvercoupe97 -- 11/19/2006 6:59:42 PM >

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Thanks,
John

(in reply to GrayGST)

Post #: 9