View Full Version : 1984 toyota landcrusier problem

11-30-2009, 08:07 PM
hey guys picked up a landcrusier with a 3.4l deisel 3b

and its running dual batts but im haveing a problem with it charging

alternator doesnt seem to be putting out proper excite (13.6-14.8v)

and i know it has a regulator but im wondering if theres a possibilty to bypass the voltage regulator to see if alternator is chargin before i go and rip it all out and try to remove oil pump off back of it

so i can determine if its regulator or not !

thanks ray

11-30-2009, 08:48 PM
hrm those voltages seem normal for most charging systems, charging one or two batteries it doesn't make much of a difference, it's the amperage that's the key, can the alternator produce enough to charge and still run the accessories, as I said, your voltage is right in the ballpark.

11-30-2009, 10:10 PM
i thought some of those were 24 volts. someone here might know more about them, 24 volt years etc.....[cheers]

12-02-2009, 04:03 AM
It may be possible that you have one dead battery, are your numbers with lights and other acc on or off?
Numbers would be ok with everything ON.

12-02-2009, 04:06 AM
I see you are in Abby, i can print you off an engine manual and if it is a 60 series Cruiser a body manual as well.
Vince B

12-02-2009, 06:29 PM
those are 12v and go through batteries, thats why they went to 24v later on.
you need to check the amps output of the alt and load test the batteries.

dirka dave
12-03-2009, 05:31 AM
I believe here should be a way to full field the alternator through a small hole in the back by inserting a small screwdriver.

12-03-2009, 01:26 PM
Be careful with that alt with the built in vacc pump they are a little pricey to replace.

dirka dave
12-04-2009, 07:16 PM

12-08-2009, 10:39 PM
turned out being the charging wires and grounds

i replaced all wires for charging and grounding with 2g wire with ends also to the starter

but everyonce in a while the starter will still act up

the plunger will hit and engane but motor wont turn over but its only if the engine stops in a certain spot ?

like if its on hard compression or something cause when engine is warm no matter what it turns over and starts no problem

12-09-2009, 06:33 AM
Could be the contacts and or brushes in your starter, they are easy to change and fairly cheep, not bad insurance to change them up anyways.

12-09-2009, 08:37 AM
I had a 84 toy diesel and it was a 24V system, figure out if the batteries are wired in series or parallel.

12-12-2009, 10:03 AM
Some pics of the starter and contacts if you are still looking.
Toyota pn# Plunger mag 28235-35080
Contact pn# 28226-72010
Contact pn# 28226-720080

12-12-2009, 10:08 AM
Pics show new parts alongside old parts.
Make sure that after u tighten the nuts on the contacts that the plunger ring rests flat on both contacts.

dirka dave
12-12-2009, 11:02 AM
Hey that is a great series of photos, it shows just how easy it is to rebuild Toyota starters.

need more stuff like that in Toyota Talk.

12-12-2009, 03:02 PM
For the next few months i got nothing better to do.