V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

newly rebuilt engine won't crank

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Old Jan 19, 2013 | 10:53 PM
  #1  
rhyspat's Avatar
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From: Vancover, BC
Car: 87 firebird
Engine: 2.8 MFI
Transmission: T-5
Axle/Gears: 3.42
newly rebuilt engine won't crank

Got my engine and tranny back in the car.
Tried to crank it over and starter engages, sounds like it is struggling to move but engine is not moving.

I can turn the engine over by hand with a wrench by the crank bolt.

Any ideas what's up
Maybe starter not in properly........ did I need time shim it differently.

Thanks
Rhys
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Old Jan 19, 2013 | 11:42 PM
  #2  
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From: Utah
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: newly rebuilt engine won't crank

Originally Posted by rhyspat
Got my engine and tranny back in the car.
Tried to crank it over and starter engages, sounds like it is struggling to move but engine is not moving.

I can turn the engine over by hand with a wrench by the crank bolt.

Any ideas what's up
Maybe starter not in properly........ did I need time shim it differently.

Thanks
Rhys
unplug the ignition coil and try to crank it again , if the motor turns over that means ur firing orde ron the plug wires is wrong and or ur timing is way advanced

starter make anykind of grinding noise or anything like that
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Old Jan 19, 2013 | 11:59 PM
  #3  
rhyspat's Avatar
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From: Vancover, BC
Car: 87 firebird
Engine: 2.8 MFI
Transmission: T-5
Axle/Gears: 3.42
Re: newly rebuilt engine won't crank

The starter makes a grinding noise. The engine is not turning at all like it's siezed.
Maybe the starter is not in properly. Could I have put it in wrong ?
There was a dog leg shaped flat metal strip tab that I put between the starter and the block - is that the right place for it to go ?.

Last edited by rhyspat; Jan 20, 2013 at 01:30 AM. Reason: extra info
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Old Jan 20, 2013 | 03:17 AM
  #4  
project89's Avatar
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From: Utah
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: newly rebuilt engine won't crank

Originally Posted by rhyspat
The starter makes a grinding noise. The engine is not turning at all like it's siezed.
Maybe the starter is not in properly. Could I have put it in wrong ?
There was a dog leg shaped flat metal strip tab that I put between the starter and the block - is that the right place for it to go ?.
yeah thats a starter shim itake it back out i never had to use one with any of my v6's chances are he shim mived the starter pinion teeth away from the flexplate to far for it to engage properly
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Old Jan 20, 2013 | 06:49 AM
  #5  
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From: Northwest Ohio
Car: 1991 Camaro RS
Engine: Lq4 6.0 SBE s485 turbo E85
Transmission: Fsi th400 stage 4. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: newly rebuilt engine won't crank

Did you wire up the starter properly? On the sileniod...
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Old Jan 20, 2013 | 10:26 AM
  #6  
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Re: newly rebuilt engine won't crank

Check the ground cable & battery connects & state of charge of the battery.
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Old Jan 20, 2013 | 03:20 PM
  #7  
rhyspat's Avatar
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From: Vancover, BC
Car: 87 firebird
Engine: 2.8 MFI
Transmission: T-5
Axle/Gears: 3.42
Hey
took the starter out to bench test. spins nicely and fast.
gear click out and back nice and fast.
just to make sure, does this plate go in between starter and block. looks like it does and the dirt spots match up.

gonna put it back in now I cleaned all connections

Rhys


Posted from Thirdgen.org App for Android
Attached Thumbnails newly rebuilt engine won't crank-starter.jpg  

Last edited by rhyspat; Jan 20, 2013 at 03:30 PM.
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Old Jan 20, 2013 | 03:47 PM
  #8  
fasteddi's Avatar
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From: Northwest Ohio
Car: 1991 Camaro RS
Engine: Lq4 6.0 SBE s485 turbo E85
Transmission: Fsi th400 stage 4. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: newly rebuilt engine won't crank

I used that shim or whatever it is also when I got a new starter.
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Old Jan 20, 2013 | 09:36 PM
  #9  
rhyspat's Avatar
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From: Vancover, BC
Car: 87 firebird
Engine: 2.8 MFI
Transmission: T-5
Axle/Gears: 3.42
I put the bolts in half way to see if it would crank and it did.
also did not have it grounded to the engine properly as I have lost the ground bolt.
battery was weak so jumped it. cranks fast and got it started. hooray.

Engine sounds tappy. Could it maybe have not pumped oil to the lifters?


Posted from Thirdgen.org App for Android

Last edited by rhyspat; Jan 21, 2013 at 11:06 AM. Reason: corrected spelling
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