How do you test a turbo?

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Old Oct 27, 2003 | 08:48 AM
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From: Greenfield, WI, USA
Default How do you test a turbo?

Alright last weekend I pulled off a turbo and all its parts off of my brothers 90 Plymouth Laser and the thing had a bad headgasket so bad that when I pulled off the oil return line from the oil pan that coolant came pouring out for quite awhile and the turbo was filled with coolant in all the ports.

Now what I want to know is how can I find out if the turbo is ok or not?? I am a complete newb when it comes to turbos so any info on how I can test it to make sure its ok would be great!!

I mean does coolant going in the oil lines of the turbo mess it up?

Also if it is messed up or seized? Can it be fixed or would my best bet be to just get a different turbo?

I would like to make sure the thing is ok before I go and install it!! So any and all info on what makes a turbo go bad and how to test it would be great!

Thanks for all your help its really appreciated!!
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Old Oct 27, 2003 | 08:53 AM
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From: Savin lives
Default Re: How do you test a turbo? (Vinceg99)

I personally would look into another turbo. It can be fixed though.
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Old Oct 27, 2003 | 08:57 AM
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Default Re: How do you test a turbo? (Vinceg99)

If it's a factory turboed Laser, then they have coolant lines that run through the turbo to help cool it after the car is turned off... This is why most of the time you don't have to turbo time factory turbo cars...

Beyond that, I don't know much about turbo Lasers... HTH
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Old Oct 27, 2003 | 09:00 AM
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Default Re: How do you test a turbo? (4U2NV)

Well the turbo laser is the same exact car as the turbo eclipse.

As for the coolant lines that I knew that they used it for cooling purposes and that if i was going to use the turbo on my car that I wouldnt have to use those, but my question is is it bad to have coolant through the oil feed lines as well? I mean whats the easiest way to find out if its good or bad?
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Old Oct 27, 2003 | 09:01 AM
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Default Re: How do you test a turbo? (HybridcivicLS-T)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HybridcivicLS-T &raquo;</TD></TR><TR><TD CLASS="quote">I personally would look into another turbo. It can be fixed though.</TD></TR></TABLE>
So then most likely the turbo is bad then?

On the avergae how much does it cost to have a turbo rebuilt?
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Old Oct 27, 2003 | 09:25 AM
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Default Re: How do you test a turbo? (Vinceg99)

You should read a book called Maximum Boost by Corky Bell. It'll answer all your turbo questions.

Yes, you should run water lines to your water cooled turbo. It cools the turbo, causing it to heat air less, not to mention it stops it from cooking your oil (which cokes your turbo bearings, causing it to fail). Spin the turbine of the turbo with your finger. It should spin freely and easily, and shouldn't have any shaft play. It should spin, and that's it, no weird motion of the shaft.

Search around for turbo rebuilders, and call a few and get their prices. Any company worth their salt will take the time to answer all your questions.

- Jim
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Old Oct 27, 2003 | 09:35 AM
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Default Re: How do you test a turbo? (Sylverius)

OK so then if it doesnt spin at all the turbo is seized up then right?? No using like penetrating spary or something to loosen it up? I didnt mess with it (just pulled it off drained it threw it in my trunk) but I am pretty sure that I couldnt spin anything but again I didnt mess with it too much.
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Old Oct 27, 2003 | 09:39 AM
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Default Re: How do you test a turbo? (Vinceg99)

It's prolly a 14b. you can find rebuild kits for them for 60 from turbo city or 100 from Forced Performance. The Forced one's have an extra ceal in thier kit which usually goes bad(ACCORDING TO THEM, not sure if it's true) on that turbo, as opposed to the turbo city one.


Modified by racinskittle at 6:52 PM 10/27/2003
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