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starter motor or battery? 

 

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 Post subject: starter motor or battery?
Posted: Tue Oct 13, 2009 8:10 am 
Parts Gopher
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Posts: 89

Joined: 20th May 2009

Ride: EB 91 now with mpfi

Location: wodonga
VIC, Australia

Hi Guys
Have a problem with EB1. Recently when cranking engine after sitting overnight (10 hours) it sounds like its about to go flat battery but keeps cranking at low drained speed and then finally picks up speed and starts car. Alternator charging ok and battery has 12.8 volts prior to starting. I am thinking battery is losing its guts but can a starter motor show these symptoms??
Cheers
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 Post subject: Re: starter motor or battery?
Posted: Tue Oct 13, 2009 8:12 am 
Getting Side Ways
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Age: 34

Posts: 638

Joined: 6th Nov 2004

Ride: 1994 Ford EF Fairmont Ghia Sedan

Location: Melbourne
VIC, Australia

yep sounds very much like the starter motor esp if the battery has 12.8V before cranking it over

 

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1994 ford fairmont ghia - Currently 302 with T5 - Work in progress :P

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 Post subject: Re: starter motor or battery?
Posted: Thu Oct 15, 2009 2:07 pm 
Getting Side Ways
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Age: 61

Posts: 437

Joined: 11th Nov 2004

Ride: EL GHIA

Location: adelaide
SA, Australia

i had a simular problem some years ago and it gave every indication it was a flat battery but it turned out to be a faulty starter motor

the bearing shells on the starter had worn so much the rotor was not spining freely and touching out on the stator in effect shorting out
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 Post subject: Re: starter motor or battery?
Posted: Fri Oct 16, 2009 12:24 pm 
Parts Gopher
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Posts: 89

Joined: 20th May 2009

Ride: EB 91 now with mpfi

Location: wodonga
VIC, Australia

replaced starter motor with another one i had lying around and problem is almost gone. Guessing the replacement one is probably on its way out also. Least now i can strip the other and see whats going on
Cheers
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 Post subject: Re: starter motor or battery?
Posted: Sun Oct 18, 2009 8:10 am 
Parts Gopher
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Posts: 89

Joined: 20th May 2009

Ride: EB 91 now with mpfi

Location: wodonga
VIC, Australia

was the battery afterall
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