TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

weird sound.. scratching

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Old Nov 3, 2021 | 12:02 PM
  #1  
THTHREAT's Avatar
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From: Houston
Car: 1991 firebird
Engine: 305 tbi
Transmission: STANDARD( REBUILT)
Axle/Gears: N/A
weird sound.. scratching

took the belt off... sound is there but when I push on the gas goes away...
Its like a scratching sound... no shavings in the oil pan.. no loss of power... oil pressure is good.. not the cat,( i have a turbo)

any ideas.. will post a video
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Old Nov 3, 2021 | 12:12 PM
  #2  
THTHREAT's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2012
Posts: 10
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From: Houston
Car: 1991 firebird
Engine: 305 tbi
Transmission: STANDARD( REBUILT)
Axle/Gears: N/A
Re: weird sound.. scratching

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Old Nov 4, 2021 | 01:30 PM
  #3  
RBob's Avatar
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: weird sound.. scratching

Check the dust cover on the bell housing. Sounds like it may be loose and is rubbing on the flywheel.

RBob.
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