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9th January 2017, 06:12 PM
#1
Expert
1999 GU TD42 Alternator - Amps
Hi all!
My Alternator has completely packed it in... when I pulled it out you can see whole chunks of things that are supposed to be attached just floating around...
Anyway, the unit I have at the moment is a 70A (pic below) but when I look around on Patrolapart and the likes, I can only seem to find 100A ones...
So... would there be any issue with putting the 100A Alternator in? Would I need to change anything? Or alternatively, does anyone know where I may be able to source a new 70A one?
Ideally I want to be able to pick it up (Melbourne SE) this week / weekend so I'm back on the road for Australia Day...
Thanks in advance!
Ben
1999 GU DX 4.2L | UFI 18g Turbo | Cross Country Intercooler | 2" Lift | 33" BF Goodrich KM2s
WARNING: Towballs used for recoveries, can, and do kill people and damage property...No Excuses!
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9th January 2017 06:12 PM
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9th January 2017, 07:30 PM
#2
SUCH IS LIFE
Mate, The more amps the better. Go the biggest you can get
A very common mod upgrading your alternator amperage.
________________________
______ 2017 D-Max _______
I don't have a short temper. I just have a quick reaction to bullshit
WARNING: Towballs used for recoveries can, and do kill people and damage property.
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relyimah (9th January 2017)
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9th January 2017, 07:48 PM
#3
The 747
Originally Posted by
Nisshead
Mate, The more amps the better. Go the biggest you can get
A very common mod upgrading your alternator amperage.
Yep for sure. Just make sure if you do this you upgrade the wiring or else you will blow fuses.
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relyimah (9th January 2017)
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9th January 2017, 07:51 PM
#4
Expert
Originally Posted by
Winnie
Yep for sure. Just make sure if you do this you upgrade the wiring or else you will blow fuses.
Thanks Winnie - this is what I was concerned about... not too sure what I would need to upgrade though??
From what I could see I think there is already a 100A fuse under the bonnet (near the main battery) so I may be ok so long as I don't go any higher?
1999 GU DX 4.2L | UFI 18g Turbo | Cross Country Intercooler | 2" Lift | 33" BF Goodrich KM2s
WARNING: Towballs used for recoveries, can, and do kill people and damage property...No Excuses!
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9th January 2017, 08:01 PM
#5
SUCH IS LIFE
I think you just upgrade the earth strap and the charge wire to the battery. Just need to get a thicker cable to handle more juice
________________________
______ 2017 D-Max _______
I don't have a short temper. I just have a quick reaction to bullshit
WARNING: Towballs used for recoveries can, and do kill people and damage property.
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The Following User Says Thank You to Maxhead For This Useful Post:
relyimah (9th January 2017)
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9th January 2017, 08:37 PM
#6
Patrol God
Hey Ben the 100 amp from Patrol a part work fine as said maybe just a couple of cables
I didn't just used what I have
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The Following User Says Thank You to Sir Roofy For This Useful Post:
relyimah (10th January 2017)
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10th January 2017, 07:56 AM
#7
Expert
Thanks Roofy... That's what I like to hear!
I'll order one today and pick it up on the weekend.
Cheers everyone!
1999 GU DX 4.2L | UFI 18g Turbo | Cross Country Intercooler | 2" Lift | 33" BF Goodrich KM2s
WARNING: Towballs used for recoveries, can, and do kill people and damage property...No Excuses!
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10th January 2017, 08:01 AM
#8
The 747
I would seriously recommend upgrading the cables and fuse... I just ran a seperate 16mm2 cable from the alternator to the battery via a 120A circuit breaker.
If you don't and you do some winching or something where you will pull the full amount from the alternator you will blow the main fuse. You will get no power whatsoever to anything. Alternator will not charge, no starter motor etc...
Speaking from experience.
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The Following User Says Thank You to Winnie For This Useful Post:
relyimah (10th January 2017)
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10th January 2017, 08:18 AM
#9
Expert
Winnie,
Which wires do I upgrade mate? (haven't played in this area before)
From what I recall, there is a plug with 2 very thin wires, and then two others bolted onto the unit.
Not a patrol diagram but shows the same concept - assume I would be upgrading "B" and "E" from the alternator? Or would I need to do all 4?
alternator wiring.jpg
1999 GU DX 4.2L | UFI 18g Turbo | Cross Country Intercooler | 2" Lift | 33" BF Goodrich KM2s
WARNING: Towballs used for recoveries, can, and do kill people and damage property...No Excuses!
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10th January 2017, 08:44 AM
#10
The 747
Correct, B & E
I left the original wiring there and used a larger welding flex cable direct from battery to alternator, and the same from alternator to chassis.
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