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Falcon alternator boiling my battery
https://auszookers.com/forum/viewtopic.php?f=5&t=10665
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Author:  Myles [ Fri Mar 26, 2010 2:14 am ]
Post subject:  Falcon alternator boiling my battery

Okay so my stock alternator was sad for a few years, eventually it died and so I installed my falcon alternator last weekend... Driven about a dozen 10k trips since then, and now my battery is charged (it was totally flat from not bieng driven for a month) it's now putting over 17 volts into the battery.. It's all really hott and it blew like 3 if the caps off the top of the battery..


Dodgy alternator maybe...?

Author:  joeblow [ Fri Mar 26, 2010 2:19 am ]
Post subject:  Re: Falcon alternator boiling my battery

voltage regulator is not working.

Author:  Sutho [ Fri Mar 26, 2010 2:33 am ]
Post subject:  Re: Falcon alternator boiling my battery

hey man what kind of falcon is it out of as im looking for 1 so i can put a bigger battery in for a winch

Author:  Zook_Fan [ Fri Mar 26, 2010 2:36 am ]
Post subject:  Re: Falcon alternator boiling my battery

EL's and EF's have them. you need a mitsi alternator not the bosch

Author:  gypsy [ Fri Mar 26, 2010 2:37 am ]
Post subject:  Re: Falcon alternator boiling my battery

yep reg is gone

Author:  royce [ Fri Mar 26, 2010 11:35 am ]
Post subject:  Re: Falcon alternator boiling my battery

when your alt is reading 17 volts, what is the sense wire on the alt reading?

if like all sierras its a bit of a dodgy wire and it reads low it will make the battery overcharge, best to run a wire direct from the battery via a relay

Author:  Myles [ Fri Mar 26, 2010 12:20 pm ]
Post subject:  Re: Falcon alternator boiling my battery

It was 17 volts at the battery. I'm not sure about anywhere else. Will check when I get back from school.. And yeah it's a mitsubishi one... Is a regulator fixable or should I just go to wreckers and get completly different one?

Author:  Rusho [ Fri Mar 26, 2010 1:04 pm ]
Post subject:  Re: Falcon alternator boiling my battery

Reg should be fixable, take it to an autolec. Should be a reasonabley cheap fix also

Author:  royce [ Fri Mar 26, 2010 2:09 pm ]
Post subject:  Re: Falcon alternator boiling my battery

nah they arent cheap cause its soldered to teh diodes which also die and takes forever to get to, not like a bosch that just screws in the side

either that or the sparky that looked at mine is useless :wink:

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