Higher output alternator?

[mudbugga]

Trying to find out if there is a higher output alternator to suit my L200 (got a 4d56t).
The std output is probably close to 65A.

Looking to find 1 that has a bit more ability to keep up with my hunting spotties.
4x 100w Hella Rallye 4000, 2x 100w Narva lights, and headlights are 55/60W so on high beam another 120w. Total of 720W. Currant draw = 60A.
I'm fitting a dual battery set up as soon as I can as well.

[Muddboots]

Have you short about a second alternator

At least it would be a good back up and you could just use an old one.

[chevrolux]

Sounds like a bit too much effort just to run spot lights. Have you actually got these installed? and had issues? Obviously you have done the calculations but have you actually measured the current draw when running? Would be suprised if they pulled a full 60A

[mudbugga]

Yeah they are BIG spotties.
Plus with the other electrical loads,(extra handheld spot lights), it doesn't take long for the battery to drain.
Out spotlighting for bunnies it will last probably 2 - 2 1/2hrs of constant use before the lights start to go yellow and the volt meter is dropping below 10v.
After 10mins with the lights off, the battery is charged enough to keep going for a bit more.

Is worth trying to sort out as we do quite a bit of spotlighting for bunnies on some big stations and they make it heaps easier to drive around (turn night into day).
I'm also looking at getting some HID kits to use in them to also help lower the currant draw (will approx half the load).

[Pajmad]

yes there is a 95 amp one that will fit bt need to change front pully from double to single and also an aftermarket 110 amp one available

[mudbugga]

yes there is a 95 amp one that will fit bt need to change front pully from double to single and also an aftermarket 110 amp one available

Cheers mate, that's what I'm after
Where from? and How much?

[Pajmad]

try a wrecker for the 95 amp one they come off 1992 pajero with the dual battery setup

[mudbugga]

Cheers Pajmad
I'll try and track 1 down.

[mudbugga]

Talked to local Mitsy wrecker here in CHCH and found out the 95A alt are like hens teeth to find and they have a different shaft size and length to my std alt so mounting it will be an issue.

For now I'm going to do the dual battery first and keep an eye out for an alt and will attack it when I find 1.

[Pajmad]

they fit trust me ive had every type fitted to mine even the old 35amper, the 95 amp one jst needs a pulley change or change ya wterpump one and ballancer to dual belt, the easiest option is the 75 amp itll bolt on, jst have to change oil dump pipe or oil pump, the spline for vacum pump does vary but some swap sm dont havent worked out witch ones wich, im jst lucky enough to have scrounged enough spares lol

[mudbugga]

Sweet as for that.
I'm keeping my eyes peeled looking for a 95A alt.
Will get 1 somehow.

[mudbugga]

Well stuck my head under the bonnet tonight and found out the alternator on my truck is actually a crappy 50A.
No wonder it didn't take long to drain the battery.

Oh well a nice new (2nd hand) 90a alt on its way to me soon.

[mudbugga]

My new (2nd hand) 90A alternator turned up (finally).
Just got to see if its a straight swap or if I've got to do some mods.
Getting it checked out before I start though. Don't want to fit it then find out it's stuffed.

[mudbugga]

Fitted my higher output alternator onto my L200 this afternoon.
Thought I'd write a small article how I did it......hopefully someone finds it informative.

The bigger (90A) alternator is off an early Pajero 2.5t/d, (unsure exact what model) but this 1 has a single row pulley, some later ones have a twin row pulley.






The things that are the same:
-Mounting positions are exactly the same as are the bolt sizes.
-Pulley (single row) is the same profile to suit the original belt.
-Banjo fittings for oil feed and vacuum outlet pipes.

Now for the differences between the original and the replacement:
-The oil drain is larger (17mm compared to 12mm) the original hose can stretch over so it's not a problem, just need to replace hose clamp.

(edit: The hose won't last forever when stretched, results in major oil leak. Just as well I was only meters from home
Best try and find a 5/8" - 1/2" 90 degree adapter and use a small bit of 5/8" and 1/2" hose.)

REPLACEMENT ALT

ORIGINAL ALT


-The output terminal is a 6mm size compared to the original of 5mm.
I had to cut off the original terminal and fit a larger eye terminal.

-The plug is different on the back, so I had to remove the terminals from the original plug and insert them directly onto the replacement alt terminals without a plug. Get them round the right way or the battery light and glow indicator light won't come on. It's easy to get on correctly, there are stickers that show what terminal goes where on both alts.
REPLACEMENT ALT

ORIGINAL ALT


-The vacuum outlet is different. The replacement has a smaller vacuum pipe as well as the larger for brakes. I swapped the outlets over as it was just a 24mm banjo fitting.
REPLACEMENT ALT

ORIGINAL ALT



It makes it heaps easier to get the alternators off and on if you remove the air box and the oil filter.
The replacement alt is slightly larger diameter so it is a bit more of an effort to get into place but its not too bad.
The oil feed hose is ever so slightly too short to make it easy to fit onto the replacement alt, so I loosened the top fitting (in the oil filter housing) and that made it easier to fit the lower banjo bolt.
It fitted on reasonable easy and with very few alterations as well, so I was very happy with the swap.
It took a while to start charging once I started the motor, but the auto sparky that checked it out for me said they do take a while to excite if they've been sitting for a while. I just had the lights on full for a while to create a greater load and had the motor revving at about 2000rpm and it cut in OK after a couple of minutes. It certainly charges more, when the old alt was on the volt meter never went over 12V but now it goes to 14V with the new alt. Hopefully I wont need to replace the cable and fuseable links from the alt to the battery now it can charge a heap more (50A originally - 90A now). We'll have to wait and see. That in itself doesn't look too bad to do, so I may do that when the dual battery goes in.

[mudlva]

have you thought of talking to a rewinder he might be able to rewind your unit to a higher rating,

only thought about this as im gettimng my old 24volt stuff rewinded to 12 volt and the guy didnt even blink about the difficulty of doing that so it might be equally as easy going to a differant amperage but same voltage

if possible this would save a sh-t load of work and other associatated problems

just my thoughts

[mudbugga]

I picked up the 90A alt cheap so rewinding the original wasn't worth looking at.
And as for mucking around fitting it, it took longer for me to take photos and get them loaded onto the computer etc.
I think my computer hates me sometimes.....or it's just me and my fat stumpy fingers....

[mudbugga]

I've now run an extra wire from the alt to the battery.
I used 8 gauge cable and a 100A fuse.
I didn't remove the original wire, just ran the extra cable as well.
Bit of over kill but I thought do it once - do it right.

[mudlva]

I've now run an extra wire from the alt to the battery.
I used 8 gauge cable and a 100A fuse.
I didn't remove the original wire, just ran the extra cable as well.
Bit of over kill but I thought do it once - do it right.

good call
my batterys are on the rear tray and my sparky found that i was getting voltage drop due to the distance of the cable.
answer was to install a fused cable to the battery / starter cable. fixed voltage problems and have now got 14.2 volts to the battery and the original alternater fuses are still cool even with all lights etc on. previously it was getting real hot were you could n't leave your hand on it due to the heat