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How to tell what alternator?? by Graudefas
Started on: 12-08-2007 10:48 AM
Replies: 6
Last post by: fierogt28 on 12-09-2007 05:29 AM
Graudefas
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Report this Post12-08-2007 10:48 AM Click Here to See the Profile for GraudefasSend a Private Message to GraudefasDirect Link to This Post
I have bearings going bad in my '88GT, and the dealer needs to know which alternator I have. I would assume it's the bigger one, being a GT. The Service manual lists two; a C130 and a C144, but shows not the difference.

Is there a quick way to tell which alternator it is?

Thx
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Hank is Here
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Report this Post12-08-2007 12:20 PM Click Here to See the Profile for Hank is HereClick Here to Email Hank is HereSend a Private Message to Hank is HereDirect Link to This Post
An 88 GT should have a CS130. I am not aware that any CS144's were used in Fiero's. Are you sure that the belt isn't just glazed and squeeling like heck? I have not seen bearings go bad on a CS130. Not saying it can't happen but it seems wierd.
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Graudefas
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Report this Post12-08-2007 04:06 PM Click Here to See the Profile for GraudefasSend a Private Message to GraudefasDirect Link to This Post
Thanks, Sir.

Pretty sure it's the bearing; new belt 2000 miles ago. Sound is not so much a squeal as a ZZZZZZZZZZZZZZZzzzzzzzzzz that changes in pitch with engine speed.

Using a stethoscope the back bearing sounds normal but when I put it on the front it is deafening.
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buddycraigg
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Report this Post12-08-2007 07:51 PM Click Here to See the Profile for buddycraiggClick Here to Email buddycraiggSend a Private Message to buddycraiggDirect Link to This Post
the CS alternators are known for having the bearings fail.
never heard of a CS144
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fierogt28
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Report this Post12-09-2007 02:00 AM Click Here to See the Profile for fierogt28Click Here to Email fierogt28Send a Private Message to fierogt28Direct Link to This Post
BTW, 88 GTs and Formulas have a metal fan on the pulley side of the altenator. The other V6 fiero alt. (85-87) don't have this fan. The cold air is drawn from the blower motor and air is blown on the altenator and coil for the 85-87 fieros. The 88 V6 fieros have that fan already on the altenator to cool it. 88s don't have the blower motor on the right side of the trunk.

fierogt28
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buddycraigg
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Report this Post12-09-2007 04:11 AM Click Here to See the Profile for buddycraiggClick Here to Email buddycraiggSend a Private Message to buddycraiggDirect Link to This Post
 
quote
Originally posted by fierogt28:
BTW, 88 GTs and Formulas have a metal fan on the pulley side of the altenator. The other V6 fiero alt. (85-87) don't have this fan.


i dont know what cars you have looked at, but every car, even non fieros have a fan behind the pulley on the alternator.
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fierogt28
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Report this Post12-09-2007 05:29 AM Click Here to See the Profile for fierogt28Click Here to Email fierogt28Send a Private Message to fierogt28Direct Link to This Post
 
quote
Originally posted by buddycraigg:


i dont know what cars you have looked at, but every car, even non fieros have a fan behind the pulley on the alternator.


The 88s have a silver fan that is bigger than the 85-87 fieros. Sorry...I must of explained it wrong. The 85-87 fieros use a different style fan for the altenator.

88 fiero altenators uses a different design.

fierogt28

[This message has been edited by fierogt28 (edited 12-09-2007).]

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