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Location:
Melbourne - NthSubs
Registered:
January 2004
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FIRE IN THE ENGINE BAY! alternator
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Thu, 03 February 2005 07:16
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what would cause the alternator (of a 4ac) to catch fire? the one with the wires connected to it that has to be screwed in...
the engine has been running for about 2months in the car and havent had to much problems... 
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Location:
Brisbane, QLD
Registered:
February 2003
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Re: FIRE IN THE ENGINE BAY! alternator
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Thu, 03 February 2005 07:23
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could of been a poorly connected wire, also known as a hot joint, this may cause a fire.
perhaps the bearings collapsed and caused it to heat up enough to set something alight.
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Location:
Melbourne - NthSubs
Registered:
January 2004
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Re: FIRE IN THE ENGINE BAY! alternator
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Thu, 03 February 2005 07:36
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the thing burnt it self off, when i put wat left of the wire on the other other end of wats left of the connection it makes a little heat or fire wat ever... would it be the alternator or other problem? atm im going to replace the alternator
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: FIRE IN THE ENGINE BAY! alternator
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Thu, 03 February 2005 08:14
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| rthy wrote on Thu, 03 February 2005 18:36 |
the thing burnt it self off, when i put wat left of the wire on the other other end of wats left of the connection it makes a little heat or fire wat ever... would it be the alternator or other problem? atm im going to replace the alternator
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this, combined with your lack of teraction at any time, makes me very scared to be on the road with you 
when you put what on what?
i think you should see an auto elec and get them to fix it properly perhaps? elec fires are always BAD.
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Location:
Melbourne - NthSubs
Registered:
January 2004
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Re: FIRE IN THE ENGINE BAY! alternator
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Thu, 03 February 2005 08:20
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well the traction problem has been solved which also caused this problem
anyways the thing is like half black so might as well get another one
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I supported Toymods
Location:
melbourne
Registered:
June 2002
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Re: FIRE IN THE ENGINE BAY! alternator
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Thu, 03 February 2005 09:36
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i got a few 4AC alternators if you need one
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Location:
Melbourne - NthSubs
Registered:
January 2004
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Re: FIRE IN THE ENGINE BAY! alternator
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Thu, 03 February 2005 11:53
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i was able to reconnect it, but the at that place it still gets very hot, is that normal?
and yes im going to take it to a mech tomorrow, just wanna get an idea of wats happened so i the mech wont rip me off
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Location:
Brisbane
Registered:
February 2003
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Re: FIRE IN THE ENGINE BAY! alternator
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Thu, 03 February 2005 12:30
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it might get a bit warm if it's pumping out maximum amperage - but i'd say it failed due to poor connection or something trying to weld itself between the bolt and he chassis.
maybe the alternator's stuffed? i'd be suspicious about any electrical component that starts melting plastic 
has the alt light come on at all while engine was running?
is the battery in need of charge or looking like it's been overchared (warped plates, excessive deposition around air-exposed annodes, other insulation melted?)
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Location:
Melbourne - NthSubs
Registered:
January 2004
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Re: FIRE IN THE ENGINE BAY! alternator
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Thu, 03 February 2005 12:38
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half of the dash dont work, the car has been running fine, until now, only thing use power is the engine, lights and crap casset radio... and didnt notice anything wrong with the battery but ill get it check out tomorrows, might replace the alternator too
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: FIRE IN THE ENGINE BAY! alternator
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Thu, 03 February 2005 12:40
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yup..
see that bolt? thats where the current comes out.. if that has earthed to the casing of the alternator.. it's fucked..
if it is just the wire that connects to it, and the bolt (PLUS IT"S (possibly) PLASTIC INSULATION INSID THE ALTERNATOR) is ok, then you might just need to rewire it..
if this wire goes to your starter motor wire, then i strongly suggest that you install a completely new wire direct from that bolt to the battery, and use something decent, like the Jaycar 8 gauge or 4 gauge wire... and maybe get an auto elec to crimp the ends for you (and maybe solder also)
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Location:
Melbourne - NthSubs
Registered:
January 2004
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Re: FIRE IN THE ENGINE BAY! alternator
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Thu, 03 February 2005 14:25
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so theres to much power coming out from the alternator? thus cooking it self?
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: FIRE IN THE ENGINE BAY! alternator
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Fri, 04 February 2005 09:55
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not likely. ask an auto elec. they are generally good for these things 
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Location:
Melbourne - NthSubs
Registered:
January 2004
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Re: FIRE IN THE ENGINE BAY! alternator
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Fri, 04 February 2005 15:08
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well its all fixed now, replaced the dam thing
and was able to test out these sport tyres at the back, OMG SO MUCH GRIP! cant even do wheel spin @ 4000rpm on 1st in the rain!
so things looking up
cheers
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