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Can I still use this?


The_Big_Weave
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Galant VR-4 org Post #: 972463 posted 02/24/11 07:24 PM     Remind Me!  Send Private Message   Edit Post      
About a week ago I was driving the galant and it was making the supercharger noise so I just brushed it off because it is way to cold to pop the hood. About 2 days ago I was driving the car and the noise quit and I could only boost about 4 pounds, I found out why.



What could have caused this? I am having trouble understanding what happend? car still runs great just smokes really bad and the turbo has around 1/2 inch of shaft play in every direction.

Turbo is a small 16g. That has been rebuilt by a friend on mine he scribed the wheel and used the GPOP shop rebuild kit around 2k miles ago.

Luckly I have a spare 14b, not in the best condition but still works.



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Edited by The_Big_Weave (02/24/11 07:37 PM)

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Boostdtalon
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Galant VR-4 org Post #: 972466 posted 02/24/11 07:38 PM     Remind Me!  Send Private Message   Edit Post      
time to get it rebuilt again. that wheel is trashed.

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The_Big_Weave
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Galant VR-4 org Post #: 972467 posted 02/24/11 07:42 PM     Remind Me!  Send Private Message   Edit Post      
Yeah I plan on just tossing the turbo, I wasn't serious about reusing it.



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Galant VR-4 org Post #: 972468 posted 02/24/11 07:55 PM     Remind Me!  Send Private Message   Edit Post      
I could find some use in it.....



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1990ggsxnj
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Galant VR-4 org Post #: 972486 posted 02/24/11 09:06 PM     Remind Me!  Send Private Message   Edit Post      
Looks like you either sucked something in there (less likely) or... the rebuild wasn't done right and the lack of balance caused the bearings and seals to deteriorate very quickly to the point where the wheel hit the housing. My bet is the exhaust blade doesn't look that great either.



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chrisfullwood
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Galant VR-4 org Post #: 972563 posted 02/25/11 08:06 AM     Remind Me!  Send Private Message   Edit Post      
the bigger question now is.... Where did the tiny little pieces go?

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1990ggsxnj
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Galant VR-4 org Post #: 972565 posted 02/25/11 08:17 AM     Remind Me!  Send Private Message   Edit Post      
They're probably long gone... or fused to the top of the pistons



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Galant VR-4 org Post #: 972589 posted 02/25/11 11:14 AM     Remind Me!  Send Private Message   Edit Post      
doesnt look like blade touch down from a bad rebuild to me. looks like something got in there, inspect your intake set up and see if any small nuts or washers or anything are missing. turbo is not a good grinder.



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grocery_getter
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Galant VR-4 org Post #: 972603 posted 02/25/11 12:35 PM     Remind Me!  Send Private Message   Edit Post      
What kind of intake pipe setup do you have? I've seen first hand how a bad intake pipe can destroy a turbo. If you inspect the filter and pretty sure that nothing else can come in from external environment to do the damage, inspect the weld on the intake pipe (if yours is welded) some times when people weld their piping, the inside is not clean (usually from mig welding or just too much little left over weld bits) Over times these little dingleberries (that's what I call 'em) will separate from the pipe and will go straight into the turbo. Sort of like mini high velocity projectiles heading for the turbo blades.



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The_Big_Weave
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Galant VR-4 org Post #: 972615 posted 02/25/11 01:14 PM     Remind Me!  Send Private Message   Edit Post      
I am running the stock intake with a GM maf and a Checker auto parts cone filter.



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Galant VR-4 org Post #: 972616 posted 02/25/11 01:20 PM     Remind Me!  Send Private Message   Edit Post      
I'm in the foreign object intrusion camp. Sucks man.



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1990ggsxnj
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Galant VR-4 org Post #: 972624 posted 02/25/11 01:58 PM     Remind Me!  Send Private Message   Edit Post      
Quoting The_Big_Weave:

I am running the stock intake with a GM maf and a Checker auto parts cone filter.




Is the GM Maf in blow through setup? If so, you may find something there.



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The_Big_Weave
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Galant VR-4 org Post #: 972682 posted 02/25/11 06:49 PM     Remind Me!  Send Private Message   Edit Post      
Suck through. I am pulling my intercooler tonite gunna shake it and see if any thing falls out.



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DR1665
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Galant VR-4 org Post #: 972698 posted 02/25/11 07:42 PM     Remind Me!  Send Private Message   Edit Post      
Take a peek inside that generic cone filter. Sometimes they have metal reinforcements inside them that come unglued after enough heat cycles. A good friend of mine nearly lost an HRC S16G a few years back when some metal cap-type deal inside the filter came loose and got sucked into the compressor inlet. Fortunately for him, the cap was about 1mm larger in diameter than the inlet of his turbo. He'd get on the throttle and, just before positive manifold pressure, the car would bog way down until he let off the gas. Damnedest thing.

Sorry to see you've lost the snail.



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mitsuturbo
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Galant VR-4 org Post #: 972805 posted 02/26/11 03:20 PM     Remind Me!  Send Private Message   Edit Post      
That's what a turbo looks like when this happens:



Fortunately, THIS one didnt eat the spacer. I have had a turbo consume one completely, though... and seen a couple others that have done the same. It's always looked just like what you're showing us above.



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Jesse_W
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Galant VR-4 org Post #: 972828 posted 02/26/11 05:13 PM     Remind Me!  Send Private Message   Edit Post      
^^^ sucks when that happens little black chunks every where and in everything..

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The_Big_Weave
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Galant VR-4 org Post #: 972868 posted 02/26/11 09:46 PM     Remind Me!  Send Private Message   Edit Post      
I pulled the turbo off and I could not find the spacer any where so I amguessing that is what happened.



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524of1000
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Galant VR-4 org Post #: 972901 posted 02/27/11 12:47 AM     Remind Me!  Send Private Message   Edit Post   
Check the hot side of the IC. That's where I found leftovers when 524 are some dehydrated intake pipe...



America was raised on speed. Hot, Nasty, Bad ass speed. - Eleanore Roosevelt, 1936

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