Outer Limits 4x4 Board

hi everybody, i want to replace the crappy 55 amp altenator on my nb 2.6 lwb pajero with something a bit better. does anybody know of a better alt from another vehicle that would bolt on without too much trouble, or is it worth getting the alt rewound (if any body still does it) or last resort, buy a new aftermarket altenator. the 55 amps struggles a bit with the a/c fan and all my lights on. thanks in advance for your ideas.

Dan
in perth

Go down to Repco or supercheap and buy a 90amp or larger bosh unit should not be more than about $200

Could even try wreckers for holden and falcon alternators

Hey mate,
I own an 83 SWB and I had exactly the same problem with my original alternater. It was a TD engine so it had a 45 amp alternator. I have 3x Lightforce 240 Blitz and 2x Hella 181's and I wasnt comfortable driving with all my lights on wit5h such a shitty alternator. I asked around and found an auto electrician who could fit and re-wire my car with an Hitachi 70 amp alternator and he was going to charge me $590 fitted. In the end another Auto electrician fitted a 65 amp alternator from a later model pajero TD (TD alternators have vacuum pumps on the back of them to work the brakes). I recently had a second hand improted engine fitted, but my alternator would not fit on this engine because it was too big in size, however it came with a 75 amp alternator which seems to do the job ok. I don't know much about petrol alternators, but im guessing that you shouldnt have as much trouble as me finding a better one.

Sam

Why not try one from a DiD engine? They are rated at 125A, and should be reasonably easy to fit.

Downside is that DiD's alternator is like petrol engine's. It does not have the integated vacuum pump.

I understand you can buy an electric vacuum pump to obviate the vacuum pump for the brake booster.

If you need a replacement vacuum pump try Toyota Corrollas or similar they have a pump similar in size to an alternator to overcome poor enigine vacuum at idle

thanks for all the ideas guys. i was kinda hoping there would be something out there that would be heaps better, would bolt straight in and would cost hardly anything. i must have been dreaming. i had a thought that maybe an alt from an early magna might be worth a try, i think the engines are similar, just front wheel drive. and the early nineties models had computers for engine managment so possibly would have a higher output alt. i guess the wreckars would be the best bet. thanks for the replies.

mate if you want off the shelf you'll have to pay

Like I said earlier try a Falcon or commodore bosh unit and reco it yourself
Basically bosh only make a couple of different alternators which the supply to all manufactures

Ford and holden units are common as in the wreckers so haggle em down that what wreckers are about, never accept their first offer

From failing memory sixes have a 90amp and v8s have 100 or 120 amp

They are quiet easy to reco yourself which will cost less than $50
check out my reply to the following for details
http://www.outerlimits4x4.com/PHP_Modul ... hp?t=50624


cheers
Wayne

thanks Wayne, I guess you are right, ford and holden altenators would be more common than anything else. do you know if the wiring to the alts is the same or do they work differently? would i have to change the way it is wired up or should it just plug straight in. i wouldnt want to do it wrong and find myself destroying things.
thanks
Dan

thanks Wayne, I guess you are right, ford and holden altenators would be more common than anything else. do you know if the wiring to the alts is the same or do they work differently? would i have to change the way it is wired up or should it just plug straight in. i wouldnt want to do it wrong and find myself destroying things.
thanks
Dan

Most if not all alternators today have internal regulators thus only have one connection (charge) normally a screwed terminal
Some may have one or two addition plug in terminals but these are usually warning indictors and do not affect the operation thus can be left off
That said yes it is pretty well a straight swap by connecting the wire from you alternator to the screwed main terminal on the new on

To be sure the pulley will align measure from the front of the mounting/tensioning tab to the centre of the pulley

G'day Dan.
I've got the same Paj as SammyBoy (83 TD SWB), and I ended up getting a non-Mitsu drop-in replacement from this mob:
http://www.aea.com.au/
Not a huge increase in power over the original (only 10-15A more), but it saved me hundreds compared to the cost of an original from Mitsubishi.
Good luck.