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factory starter too weak?

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Old Sep 21, 2013 | 05:20 PM
  #1  
82Five-O's Avatar
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Car: 82 Sport coupe
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factory starter too weak?

I installed a new factory starter on my 350 and it will not turn the engine over, it just makes a clicking noise as if I have a dead battery. The previous starter that I had on the engine was a hi torque and it always turned it over just fine. I don't have high compression, however I do have a comp 268H cam, the factory starter should turn it over fine right? factory style .40 over pistons and camel hump heads. I can turn the motor over by hand easy, wtf? All connections are good, the battery is in the back of the car though. Is the long power cable keeping it from having enough current?

Last edited by 82Five-O; Sep 21, 2013 at 05:24 PM.
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Old Sep 21, 2013 | 05:24 PM
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Re: factory starter too weak?

Did you verify you don't have any lose wires? I've seen them pull cars in gear so it should crank just fine. Also have you tried to Jump your starter to see if maybe it'll crank?
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Old Sep 21, 2013 | 05:26 PM
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82Five-O's Avatar
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From: Fort Worth, TX
Car: 82 Sport coupe
Engine: 355 semi roller
Transmission: TH-350 B&M ratchet shifter
Axle/Gears: 3.73 Eaton Posi
Re: factory starter too weak?

Originally Posted by maxjivi05
Did you verify you don't have any lose wires? I've seen them pull cars in gear so it should crank just fine. Also have you tried to Jump your starter to see if maybe it'll crank?
I will try to jump the starter to see what happens, and yea all the connections are good
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Old Sep 21, 2013 | 06:51 PM
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vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: factory starter too weak?

Originally Posted by 82Five-O
makes a clicking noise as if I have a dead battery.
Clicking is a indication of low power at the starter

Originally Posted by 82Five-O
the battery is in the back of the car though.
Is the long power cable keeping it from having enough current?
Sure
In a auto circuit, voltage equals the current multiplied by the resistance.
V = I/R

The resistance of the cable increases with longer length so the voltage at the starter goes down ,
which is why you need a much thicker cable for a rear mount batt than if it was in the engine bay
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Old Sep 21, 2013 | 07:33 PM
  #5  
82Five-O's Avatar
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From: Fort Worth, TX
Car: 82 Sport coupe
Engine: 355 semi roller
Transmission: TH-350 B&M ratchet shifter
Axle/Gears: 3.73 Eaton Posi
Re: factory starter too weak?

Yea its 600 volt 1000 amp electrical wire
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Old Sep 21, 2013 | 09:19 PM
  #6  
82Five-O's Avatar
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From: Fort Worth, TX
Car: 82 Sport coupe
Engine: 355 semi roller
Transmission: TH-350 B&M ratchet shifter
Axle/Gears: 3.73 Eaton Posi
Re: factory starter too weak?

it is turning the motor over now but very slowlyits like the starter is struggling and I cannot figure out why
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Old Sep 21, 2013 | 11:09 PM
  #7  
FtrSpeedy's Avatar
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From: Iowa
Car: 14 scion tc/91 camaro rs
Engine: 2.5/ 360 pooch
Transmission: 6spd man/th350
Axle/Gears: na/2.73
Re: factory starter too weak?

Have you actually checked your battery?
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Old Sep 22, 2013 | 04:12 AM
  #8  
vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: factory starter too weak?

Originally Posted by 82Five-O
it is turning the motor over but very slowly
its like the starter is struggling and I cannot figure out why
Like the man said above , have you checked the actual voltage at the battery and at the starter terminal ?


Originally Posted by 82Five-O
its 600 volt 1000 amp electrical wire
What gauge ?
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Old Sep 22, 2013 | 03:19 PM
  #9  
82Five-O's Avatar
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From: Fort Worth, TX
Car: 82 Sport coupe
Engine: 355 semi roller
Transmission: TH-350 B&M ratchet shifter
Axle/Gears: 3.73 Eaton Posi
Re: factory starter too weak?

double zero gauge
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Old Sep 22, 2013 | 03:20 PM
  #10  
82Five-O's Avatar
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From: Fort Worth, TX
Car: 82 Sport coupe
Engine: 355 semi roller
Transmission: TH-350 B&M ratchet shifter
Axle/Gears: 3.73 Eaton Posi
Re: factory starter too weak?

I have heard about using lt1 starters
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Old Sep 22, 2013 | 03:56 PM
  #11  
vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: factory starter too weak?

Originally Posted by 82Five-O
the starter is struggling and I cannot figure out why
So figure out where your problem lies 1st

Take the battery out and jump it straight to the starter.
Does it turn over better ?

If not ,the starter is your problem.
If so ,your wiring is the problem

Originally Posted by 82Five-O
I have heard about using lt1 starters
Won't make any difference if there is not enough grunt to the starter
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Old Sep 22, 2013 | 10:09 PM
  #12  
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From: Iowa
Car: 14 scion tc/91 camaro rs
Engine: 2.5/ 360 pooch
Transmission: 6spd man/th350
Axle/Gears: na/2.73
Re: factory starter too weak?

At this point id say go buy a $300 starter, cause thats all op seems to be interested in.

But i would check the battery, i just replaced my 8 month old battery that showed 11.5volt on gauge and wouldnt crank motor at all, just click, it had one dead cell.
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Old Sep 22, 2013 | 10:26 PM
  #13  
82Five-O's Avatar
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From: Fort Worth, TX
Car: 82 Sport coupe
Engine: 355 semi roller
Transmission: TH-350 B&M ratchet shifter
Axle/Gears: 3.73 Eaton Posi
Re: factory starter too weak?

everything is fine it just won't turn my motor over. I'm going with LT 1I guess
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