Replacing alternator with battery connected?
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- -Nighthawk-
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Replacing alternator with battery connected?
Hey guys,
I was just wondering if it's possible to replace an alternator while the battery is still connected? Are there any consequences to doing this?
My alarm is retarded and goes off when the battery is disconnected, I don't think it was wired up properly when it was replaced a few years ago as it's meant to disable when the keys are in the ignition.
Anyway, so will there be any consequences to replacing the alternator with the battery still connected?
Cheers
I was just wondering if it's possible to replace an alternator while the battery is still connected? Are there any consequences to doing this?
My alarm is retarded and goes off when the battery is disconnected, I don't think it was wired up properly when it was replaced a few years ago as it's meant to disable when the keys are in the ignition.
Anyway, so will there be any consequences to replacing the alternator with the battery still connected?
Cheers
- aza013
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Re: Replacing alternator with battery connected?
Unless the car is running then you should not have a problem.
- JOA81
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Re: Replacing alternator with battery connected?
Make sure you tape up the big terminal when you take it off the alternator or at least wrap it in a rag as that is direct power from the battery so if you touch it against any part of the car you could fry things that's about the only thing you need to be careful of

- -Nighthawk-
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Re: Replacing alternator with battery connected?
Ok thanks for the info
I'll be replacing the alternator this weekend, cheers

- Shhtuart
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Re: Replacing alternator with battery connected?
Pumped.-Nighthawk- wrote:Ok thanks for the infoI'll be replacing the alternator this weekend, cheers
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Re: Replacing alternator with battery connected?
Are you familiar with the method of changing an alternator?
- -Nighthawk-
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Re: Replacing alternator with battery connected?
I have a fair idea of how to change it, apparently it's easier on a GR as it can be taken out front the top.
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Re: Replacing alternator with battery connected?
Disconnect the speaker on alarm?
- -Nighthawk-
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Re: Replacing alternator with battery connected?
The battery backup keeps it going, I'll have to unscrew the system to get to it. I don't want to be messing around with the alarm when I have no idea how to fix it 

- payaya
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Re: Replacing alternator with battery connected?
pull the fuse able link in the fuse box.
- -Nighthawk-
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Re: Replacing alternator with battery connected?
So pull fuse #16 out first?
http://ftoaustralia.com/v3/viewtopic.php?f=21&t=15276
http://ftoaustralia.com/v3/viewtopic.php?f=21&t=15276
- -Nighthawk-
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Re: Replacing alternator with battery connected?
Anyone know how to loosen the alternator belt which is stuck? Been using a socket to try loosen the bolt on the side first but it's not budging :/
- vipfto
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Re: Replacing alternator with battery connected?
-Nighthawk- wrote:I have a fair idea of how to change it, apparently it's easier on a GR as it can be taken out front the top.
HAHAHAHA Nope out from side or underneath via removing exhaust

Either disconnect or remove fuse for battery or have fun with the shorts

FTO GR-TURBO
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Re: Replacing alternator with battery connected?
Yeah has to be taken out from side or bottom
- Daniel2019
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Re: Replacing alternator with battery connected?
Can you just take the pulley off, then the belt?-Nighthawk- wrote:Anyone know how to loosen the alternator belt which is stuck? Been using a socket to try loosen the bolt on the side first but it's not budging :/
I fix cars.
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- payaya
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Re: Replacing alternator with battery connected?
Stick a pole on the extension and should come off easy!-Nighthawk- wrote:Anyone know how to loosen the alternator belt which is stuck? Been using a socket to try loosen the bolt on the side first but it's not budging :/
- payaya
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Re: Replacing alternator with battery connected?
Think so! After pulling link, you will need to see if there is still 12volts at the alternator end terminal.-Nighthawk- wrote:So pull fuse #16 out first?
http://ftoaustralia.com/v3/viewtopic.php?f=21&t=15276
- -Nighthawk-
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Re: Replacing alternator with battery connected?
We tried that, didn't budgepayaya wrote:Stick a pole on the extension and should come off easy!-Nighthawk- wrote:Anyone know how to loosen the alternator belt which is stuck? Been using a socket to try loosen the bolt on the side first but it's not budging :/

- payaya
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Re: Replacing alternator with battery connected?
Not trying hard enough then. With a pole you should easily be about to break it. Using a ring spanner?-Nighthawk- wrote:We tried that, didn't budgepayaya wrote:Stick a pole on the extension and should come off easy!-Nighthawk- wrote:Anyone know how to loosen the alternator belt which is stuck? Been using a socket to try loosen the bolt on the side first but it's not budging :/