The Alternator on the Series 3 has decided to pack up. Charge light is staying on during running, and the voltage across the battery doesn't move up any higher than 10v or so, so I'm looking for a replacement.
The big green Bible (Landrover series 3 Repair Operation Manual) says the alternator is a good old 16ACR, however when I pulled the old one off it states its a LRA100.
Are these interchageable, a later version or remanufacture, or is a LRA100 a different beastie that hasn't really got a replacement on the lucas inventory?
(Basically if I can use a 16ACR, 17ACR or a LRA100, LRA101 etc it gives me more options of getting a cheap replacement to bung on)
Alternator for a Landrover
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SirTainleyBarking
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- Location: Solihull, where Landrovers come from
Alternator for a Landrover
Landrovers and Welding go together like Bread and Butter. And in the wet they are about as structurally sound
Biting. It's like kissing except there's a winner
Biting. It's like kissing except there's a winner
Re: Alternator for a Landrover
LRA 100 is the Lucas part number for that alternator, any ACR17 or 18 will be exactly the same in physical appearance and electrical characteristics.
J
"Home is where you park it", so the saying goes. That may yet come true..
"Home is where you park it", so the saying goes. That may yet come true..
Re: Alternator for a Landrover
Gah, I don't know, you young people and your throw-away society.... Why not fix the old one? Probably just the brushes, or the regulator....
Some people are like Slinkies - they serve no useful purpose, but they still bring a smile to your face when you push them downstairs.
Re: Alternator for a Landrover
Fixed my 18 with a £15 kit of bearings, voltage control and brush pack from the bay. Basically all you need is a decent small bearing puller, a vice and a soldering iron.The instructions came with the kit, for the electrically challenged amongst us, which is me 
Tricky bit is desoldering the wires to the slip ring and reattaching them to the new ring in the kit but I found the rest straightforward enough - saves you about £45 on a new alternator and it's fun to do.
Tricky bit is desoldering the wires to the slip ring and reattaching them to the new ring in the kit but I found the rest straightforward enough - saves you about £45 on a new alternator and it's fun to do.
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mr rusty
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Re: Alternator for a Landrover
You could just fit a new set of brushes, not difficult. Or you could just chuck it in the bin and get a Lucas A127, very common in the scrappies. They look pretty similar to ACR's and superseded them although they still luckily share the ACR 3 pin plug. The A127's output is a lot higher and a much better regulated. You can change the brushpack in situ too in around a minute provided you have access.
1968 Triumph Vitesse Mk1 2 litre convertible, Junior Miss rusty has a 1989 998cc Mk2 Metro, Mrs Rusty has a modern common rail diesel thing.
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SirTainleyBarking
- Posts: 413
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Re: Alternator for a Landrover
Well I can get hold of a 17ACR for around £30-40, or a kit for £15. For speed I'll probably get a replacement for now, as I have something interesting in mind for the old alternator once I've replaced it.
Either that or something suitable with a lucas connector from the scrappy (When they're open of course)
ETA: took the cover off:( 2 x 7/16" bolts )
Brushes are perfect, No nasty niffs or scorches, One HUGE dead spider, I'm thinking reg pack or rectifier has decided to kark it. Oh well, lets see what I can get my hands on first
Either that or something suitable with a lucas connector from the scrappy (When they're open of course)
ETA: took the cover off:( 2 x 7/16" bolts )
Brushes are perfect, No nasty niffs or scorches, One HUGE dead spider, I'm thinking reg pack or rectifier has decided to kark it. Oh well, lets see what I can get my hands on first
Landrovers and Welding go together like Bread and Butter. And in the wet they are about as structurally sound
Biting. It's like kissing except there's a winner
Biting. It's like kissing except there's a winner
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SirTainleyBarking
- Posts: 413
- Joined: Mon Feb 14, 2011 12:41 am
- Location: Solihull, where Landrovers come from
Re: Alternator for a Landrover
Picked up a LRA100 on the bay for £28, and spent an hour fiddling it on. I now have a spare to rebuild at my leisure, which is nice.
(I did give the spider a decent burial)
Just need a spare pulley and fan, cos that is a bugger to get off. One tip I do have If you want to get the nut off the end of the shaft, A Clarke 12V electric impact wrench does seem to work quite well. Might try it on other bits as well.
(I did give the spider a decent burial)
Just need a spare pulley and fan, cos that is a bugger to get off. One tip I do have If you want to get the nut off the end of the shaft, A Clarke 12V electric impact wrench does seem to work quite well. Might try it on other bits as well.
Landrovers and Welding go together like Bread and Butter. And in the wet they are about as structurally sound
Biting. It's like kissing except there's a winner
Biting. It's like kissing except there's a winner
Re: Alternator for a Landrover
Just in case you find yourself having to swap alternator pulleys at some time in the future:
Put an old fan belt around the pulley that you want to remove, grip the belt in a vice to hold the pulley still and you'll get it apart with a regular 1/2" drive ratchet and suitable socket.
Put an old fan belt around the pulley that you want to remove, grip the belt in a vice to hold the pulley still and you'll get it apart with a regular 1/2" drive ratchet and suitable socket.
J
"Home is where you park it", so the saying goes. That may yet come true..
"Home is where you park it", so the saying goes. That may yet come true..
Re: Alternator for a Landrover
That is a great tip, i wish i had thought of that before trashing my pulley last year :S
Understeer: when you hit the wall with the front of the car.
Oversteer: when you hit the wall with the back of the car.
Horsepower: how fast you hit the wall.
Torque: how far you take the wall with you.
Oversteer: when you hit the wall with the back of the car.
Horsepower: how fast you hit the wall.
Torque: how far you take the wall with you.
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SirTainleyBarking
- Posts: 413
- Joined: Mon Feb 14, 2011 12:41 am
- Location: Solihull, where Landrovers come from
Re: Alternator for a Landrover
I've tried that approach in the past (Rover 115 SLD) and to be fair it works but takes a lot of effort. I had trouble pinching the belt tight enough.JPB wrote:Just in case you find yourself having to swap alternator pulleys at some time in the future:
Put an old fan belt around the pulley that you want to remove, grip the belt in a vice to hold the pulley still and you'll get it apart with a regular 1/2" drive ratchet and suitable socket.
I picked up the rattle gun approach from the rebuilders who supplied the Rover's replacement. Took in the old one and compared pulleys. Guy behind the counter said, "Ooh not quite the same are they, hang on a sec" - He kept a rattle gun under the work top, changed them over in under a minute, compared to the half hour it took me to get the old 'un shifted
Landrovers and Welding go together like Bread and Butter. And in the wet they are about as structurally sound
Biting. It's like kissing except there's a winner
Biting. It's like kissing except there's a winner