So I just acquired my 79 yoda 4x4. And the charging system was crap. So me being the okie i am. I went to the local pull a part and found to me the best option by eye to be the 92 isuzu pickup altenator. No need to change anything. Just a slightly shorter belt and swap a few wires and works great. Just wondering why i havent seen anything on this swap before?
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Cuz you are the first to try it?
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Just thought thst with all the true toyota guys and all the years of charging problems on these first gen toys. Someone surly would have tried to cure it cheap, easy, and neatly. Just trying to help anyone who may be looking for an fix. Have info if anyone wants it. Just trying to do my part and contribute to the site.
Cool idea!
What specifically was the charging problem? Your truck should have an external regulator on the inner fender, maybe that's where the trouble is. Or your original alt just needs new brushes.
If the Isuzu alt is higher output rated, you should upgrade the main charge wire.
What specifically was the charging problem? Your truck should have an external regulator on the inner fender, maybe that's where the trouble is. Or your original alt just needs new brushes.
If the Isuzu alt is higher output rated, you should upgrade the main charge wire.
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Yes the ext regulator was bad and the previous owner or owners had butchered the harness. Plus it seems to be a common issue. The isuzu is a 60a alt so it shouldn't be an issue on wire size. Not running many extra electronics. Just winch and a light bar. No more boiled battries or flickering lights. Or that damn annoying chg light. Dont know if it bothers anyone else. But drives me crazy
It looks like your factory alternator was a 40A. I would agree with what KLF said ... upgrade the charge wire. The stuff you listed involves the wire that runs from the battery to the fuse block under the hood. The wire KLF is talking about is the wire that bolts to the back of the alternator. I would use at least a 10 gauge wire.
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Yes that wire has been upgraded or replaced in the past has been rerun in welding leads as has the battery leads and most grounds. Atleast the battery to frame, frame to motor, and head to body. Im shure theres a few that haven't been changed. And im shure ill be finding them soon. As its been setting sense 1999 and now is a daily driver
Probably because most upgrade to something >60a in these trucks. My 85 was 60a from the factory. A Jaguar XJ6 Denso alternator is a direct bolt-in and is 120a. Clean and easy. Upgrade the wires and go.
What year Jag?
I believe I used 1996 as my year to look up on Rock Auto. Bought an OEM Denso unit. Swap your stock 22r pulley (bore out ID ~2mm) to the Jag alt. I had a machine shop do it in 20 min for $20. I upgraded all wiring to 2ga and added a 150a slow blow fuse. Wire alt directly to battery +. Keep the 80a factory fusible link intact. Yotatech and a couple other sites have more info on the swap.
Thanks. There is a 1995 XJ6 at the local u-pull. I just might need to pay them a visit.
Too bad the pictures don't work anymore. 120amp Jaguar Alternator Upgrade **HOW TOO** - YotaTech Forums
