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Knocking while cranking

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Old Jan 10, 2008 | 03:09 PM
  #1  
qytum's Avatar
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From: Manassas , V.A
Car: 92 Formula
Engine: 5.0L TBI
Transmission: 700R4
Axle/Gears: 3.73 posi
Knocking while cranking

I just picked up and installed a 350. When cranking the motor over with the starter, I have a loud knock every 2 or 3 seconds. My question is if you can hear a rod knock while cranking without the car started? If not, my other theory is that there could be something in one of the cylinders and the piston is smacking it against the head.

Any help would be appreciated
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Old Jan 10, 2008 | 07:54 PM
  #2  
ljnowell's Avatar
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Re: Knocking while cranking

possibly starter shimming/alignment? That is, if it only knocks while cranking. crappy starter? Anything is possible i guess.
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Old Jan 10, 2008 | 07:55 PM
  #3  
qytum's Avatar
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Joined: Jul 2002
Posts: 312
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From: Manassas , V.A
Car: 92 Formula
Engine: 5.0L TBI
Transmission: 700R4
Axle/Gears: 3.73 posi
Re: Knocking while cranking

Not the starter. I started it up for like a second and it still knocks but obviously alot faster
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