2h alternator sourcing help!

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aaron9252

aaron9252

10 Year
Joined
Mar 25, 2012
Threads
37
Messages
158
Location
Mooresville, NC
Hi all,

I've been dealing with a charging issue for several weeks now and currently have my alternator at an alt specialty shop.

They inspected it and found the stator, rectifier and diodes all to burnt and need replaced. Due to being a 2h 24v with the vacuum pump, parts are essentially impossible to find. I've called beno and he was unable to find a domestic replacement as well.

The shop wants to have the stator rewound and then they can rebuild.

My question is what do you all think about this option? Should I have them rebuild? I found similar 2h alternators on eBay from Australia. All in they look to be $325 for a used unit. I think the rebuild on mine would be about the same.

I would really appreciate any advice as the charging issues have driven me nuts. At this point I've reviews all the wiring and replaced pieces that look to have a fair amount of corrosion. Hope to solve the issue once I fix/replace the alternator. Below is a pic of my unit and a link to the eBay site. I tried calling the Aussie but it goes straight to voicemail.

Toyota Landcruiser 2H ALTERNATOR Diesel HJ75, HJ60 green plug 5799 | eBay

IMG_3431.webp
 
FYI, I sent the eBay contact an email and he just replied. Said all units have been tested and are in working condition and come with a replacement warranty. What would you guys do?
 
I ear ya dude .. years of fighting alt with the damn vacuum pump .. lucky me I'm 12V so more options on 12V .. you might want to consider the swap .. ( will all involved job )
 
We can get the parts here, but they're not cheap. And shipping on top makes it even more expensive.

Denso numbers for the rectifiers:
-021580-3240
-021580-3230

Stator is not listed unfortunately
 
Are you sitting down? Including shipping that would be 237US.... That's for the 2 genuine Denso rectifiers...

We might even have a core that can be rebuild, but not sure yet if it is actually the same one and what condition it is in.
 
Just checked, it's a different alt we've got. It is 24v with a vac pump on the back and I remember we've looked at it before and with lots of digging found out it should be from a 2H. However, its not the same number as yours and toyodiy doesn't recognize it.

It's the 27030-68020 we've got here. Denso number is hard to read but looks to be 100210-1961
 
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Not sure this is going to be of much help, but we've a rebuilder up here who has in the past been able to source anything needed for fixing or rebuilding 24V alternators. Maybe give him a shout to either repair, or talk shop to shop, or at least supply parts? Might be worth a shot if your up against it.

Nathan at ASI rebuilders in Abbotsford BC: A S I Rebuilders - Alternators & Starters - Abbotsford

hth's
gb
 
ToyRoverlander said:
Just checked, it's a different alt we've got. It is 24v with a vac pump on the back and I remember we've looked at it before and with lots of digging found out it should be from a 2H. However, its not the same number as yours and toyodiy doesn't recognize it.

It's the 27030-68020 we've got here. Denso number is hard to read but looks to be 100210-1961
Click to expand...
Thanks for the follow up. Mine actually has the pump on the back and is off of my 2h. I haven't been able to figure out why so many different part numbers from mid-80's 2h alternators, which is part of the challenge.
 
Greg_B said:
Not sure this is going to be of much help, but we've a rebuilder up here who has in the past been able to source anything needed for fixing or rebuilding 24V alternators. Maybe give him a shout to either repair, or talk shop to shop, or at least supply parts? Might be worth a shot if your up against it.

Nathan at ASI rebuilders in Abbotsford BC: A S I Rebuilders - Alternators & Starters - Abbotsford

hth's
gb
Click to expand...
Thanks for the info. I'll give them a shout.
 
You have 27040-68030
40 Amp
sold at: 27040-68030,TOYOTA 27040-68030; Alternator

Cross Interchange Parts
Factory Number
ELSTOCK 48-0856
FARCOM 119683
LUCAS ELECTRICAL LRA02427
ASHIKA 002-T593
JAPANPARTS ALT593
DRI 235.137.404

I removed mine yesterday and some sites below might be handy for you, but I have another 24v type (1985 HJ60)

type sticker: 100210-2980
27030-68120
24V = 25 Amps :hmm:
121000-1770
081000-1061


pdf with parts : http://www.elektroistenik.sk/wp-content/uploads/2010/09/ca-nd-alternatora-2011.pdf

about 10 replacment types: Onderdelen zoeken

27030-68120,TOYOTA 27030-68120; Alternator

This was yesterday evening:
file.php


And a few hours ago I delivered the alternator for rectifier bridge test/replacement and they called back.
A new unit, on the shelf since 1995, was sold to me for 100 euro :clap: :rofl:
And take the old one back for parts because we will never sell that :hillbilly:

file.php


file.php


file.php



I dont like second hand parts because they just delay the same problem.
Now I can spin the old and new one and the old has a nice grinding sound that i can only hear with the new one next to it :D

Looking for 24 volt alternator

condensor can be faulty and drain battery (it seems in diagram, if it makes contact it bypasses the rectifier bridge, possible?)

But why do they call it a condensor? should be capacitor? condenser is for airco?

this might be it but will remove later and see any part number:
90099-52066 - Genuine Toyota CONDENSER, ALTERNATOR

file.php
 
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hj 60 said:
You have 27040-68030
40 Amp
sold at: 27040-68030,TOYOTA 27040-68030; Alternator

Cross Interchange Parts
Factory Number
ELSTOCK 48-0856
FARCOM 119683
LUCAS ELECTRICAL LRA02427
ASHIKA 002-T593
JAPANPARTS ALT593
DRI 235.137.404

I removed mine yesterday and some sites below might be handy for you, but I have another 24v type (1985 HJ60)

type sticker: 100210-2980
27030-68120
24V = 25 Amps :hmm:
121000-1770
081000-1061


pdf with parts : http://www.elektroistenik.sk/wp-content/uploads/2010/09/ca-nd-alternatora-2011.pdf

about 10 replacment types: Onderdelen zoeken

27030-68120,TOYOTA 27030-68120; Alternator

This was yesterday evening:
file.php


And a few hours ago I delivered the alternator for rectifier bridge test/replacement and they called back.
A new unit, on the shelf since 1995, was sold to me for 100 euro :clap: :rofl:
And take the old one back for parts because we will never sell that :hillbilly:

file.php


file.php


file.php



I dont like second hand parts because they just delay the same problem.
Now I can spin the old and new one and the old has a nice grinding sound that i can only hear with the new one next to it :D

Looking for 24 volt alternator

condensor can be faulty and drain battery (it seems in diagram, if it makes contact it bypasses the rectifier bridge, possible?)

But why do they call it a condensor? should be capacitor? condenser is for airco?

this might be it but will remove later and see any part number:
90099-52066 - Genuine Toyota CONDENSER, ALTERNATOR

file.php
Click to expand...
Thanks for all the info. To have mine rebuilt at the shop (rewind stator, new rectifier, diodes, brush holder, etc) is going to be around $320.

Seems like this is about the best option. I have looked at the Nissan and Hyundai models but I'd hate to spend $300 for those and they not fit properly with my AC compressor.

One question I have is should I ask the shop to increase the amps? If even possible? Right now mine is 40amps. Any suggestions on this?

Again, thanks for the help.
 
When rebuilt it's basically a new unit, and you know it fits. To me that sounds like your best option.
It's not cheap, but I would've expected it to be more as the stator rewinding is usually very expensive.
We got a quote bavk for rewinding a '20s Buick alternator stator (or rotor, can't remember) and that was going to cost upwards of 1500USD....
 
I think the shop can increase Amps while rewinding has to be done anyway, mine has only 25 amps so do you have a winch and stuff that needs it?

But the new 80 amp with new pump also looks very.. , new. :rimshot:


I like new but hate sending parts back that don't fit:
"parts that should fit but don't fit" is the best friend of "while in there": I don't like them but they visit me often :hillbilly:
 
hj 60 said:
I think the shop can increase Amps while rewinding has to be done anyway, mine has only 25 amps so do you have a winch and stuff that needs it?

But the new 80 amp with new pump also looks very.. , new. :rimshot:


I like new but hate sending parts back that don't fit:
"parts that should fit but don't fit" is the best friend of "while in there": I don't like them but they visit me often :hillbilly:
Click to expand...
To your point, it drives me crazy to buy something that is supposed to fit and ultimately doesn't. With the Bosch unit, it's coming from Aus so that would be a $200 mistake.

I don't run a winch and other major accessories, really don't plan on it either. But with that said due to fighting this battery/charging issue for months now I'm trying to think of anything I can do to not have this occur again. Any advice around the amperage would be great.
 
I wouldn't have them change the amperage. As you said, you don'treally have any accesories, so basically it's just lights and some small other stuff.
I got a 25A version on my 3B and it has served my electrical needs very well, despite running dual batteries (so 4 batteries, as it's 24V), dual 12'' electric fans and in summer a waeco fridge in the back. Rear lights, front sidelights and f+r indicators are led.
I've got a VDO voltmeter to see what it does.
 
My new alternator is working fine: no more draining battery and I think if yours is rebuild like new you wont have any issue.
My hj is 30 year's old but it has new batteries so the problem described in the link below of and old charging system with 13.4 volts with a new battery that needs 14.4 volts makes a lot of sense to me, just a few weeks more testing to see if I need to move up in voltage.

Mine With/Out IC regulator should be between 27-29 volt (13.5/14.5 volts to share between two batteries) And 27 seems to be to little...
What I dont understand is why he does not simply adjust the voltage regulator as described in FSM, I will read later:

The Alternator Regulator Voltage Booster Modification – Part 1 – Introduction

also nice info: Automotive Charging Systems - A Short Course on How They Work | CarParts.com
 
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