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View Full Version : 4ac to 4age alternator dilemma fixed



JDMJNKY
24th November 2006, 06:13 PM
i just did the conversion and found the easiest way to solve the issue using the 4ac alternator cos im making custom brackets. took 4ac alternator to local auto elec got them to match 4age 5pk belt pulley and just lengthen the wiring and dun!

roadsailing
24th November 2006, 06:29 PM
what exactly is the issue?

JDMJNKY
26th November 2006, 04:44 PM
what exactly is the issue?[/b]

just saying how i used a 4ac alternator on my 4age.

eighty-six
23rd April 2007, 11:50 PM
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what exactly is the issue?[/b]

just saying how i used a 4ac alternator on my 4age.
[/b]


got any pics of this???

riceburner
29th April 2007, 07:58 PM
Does the 4ac alternator make enough current to run a 4age. I would not of had thought so. In fact im almost sure it doesnt.

Not without mods atleast.

Jonny Rochester
29th April 2007, 11:37 PM
The 4A-C alternator is 45A and the 4A-GE one is 60A. Maybe there would be an issue with headlights on high beam, driving through rain with wipers on and subwoofer etc. But mostly the 4A-C alternator would be fine.

The easiest way is to use the original brackets, pulleys and belts off your 4AC. You only have to grind one bit off the bracket to make it fit. Very easy.

dctrd
2nd May 2007, 01:03 PM
I thought there was only 5A difference in charge capacity between 4ac and 4age?
Either way, if the 4ac alt was ok with the carb engine, it should be ok with the EFI.

How much power does the computer + fuel pump + injectors actually dissipate?

JDMJNKY
7th May 2007, 09:35 PM
having extreeme charging issues with this setup i tried 2 different alternators and 2 different regulators for some reason the regulators were swithching on and off (maybe overloaded?) anywho im runnign a 4age alternator now.

JDM-086
17th May 2007, 11:28 PM
dude i run a 4ac alt and i want to switch to the correct driverside mounted setup. im having a hard time working out what i have to do.. do i just need brackets, pulleys and belts???

Jonny Rochester
18th May 2007, 01:25 AM
You need brackets, 4A-GE crank pulley, and 5 rib water pump pulley, and a 5 rib belt.

There are 2 basic styles of setup, RWD and FWD.

The FWD pulleys and brakets are sort of easy to find. Come on AE82, AE92 and 20 valve 4A-GEs. The alternator mounts high.

The RWD setup is best, a bit harder to find, but you can buy the parts new as I did. See the parts thread. (And RWD water pipes will fit better).

Then you can unplug your voltage regulator and wire up the alternator with 3 wires. This would not take long for a auto elect. to do.

JDM-086
18th May 2007, 01:27 AM
i have a hose going into the bottom of the radiator and i think it may b in the way of where the alternator would sit :S, its dark but u can see it just to the left of the dipstick covered in oil

Jonny Rochester
18th May 2007, 01:41 AM
See parts thread. Order bottom radiator hose for AE86 4A-GE.

JDM-086
18th May 2007, 01:44 AM
wats the difference??

driftism
18th May 2007, 01:57 PM
can you buy the proper JDM alternator brackets new?