Also, my 90A Bosch alternator is about the same size and weight as my old 65A Bosch alternator. Going to a 90A alternator is a great cheap mod.
I did this on my mk1, along with a 90A Bosch alternator (AL49X ?) and a variable voltage regulator to get 14V. Also, I replaced all the tail lights and side markers bulbs with LED bulbs (superbrightleds) . This greatly reduced the amps drawn from the alternator.
I just replaced mine last week! I bought a remanufactured Bosch from FCPEuro. Looked brand new. Also was a pretty easy DIY.
Bosch is the OE manufacturer for motorcraft alternators so if you find a Bosch chealt cheaper, go for it. They're the same minus the motorcraft sticker.
That Bosch VR6 alternator was not a direct fit, but significantly easier than the Delcos other Rover owners commonly used. My method was faster, cheaper and way more reliable.
Get a Bosch or Denso alternator. I'd buy used before one of those brands. Just my preference, I know they sell tons of starters and alternators, but I don't like to do things twice.
Funny thing is, the Bosch alt. I had in the car at the time is sitting in the car in my driveway. Okay, I replaced the brush pack a few times. The 90 Amp alt. itself is at least 10 years old, if not more.
I am pretty sure that the 120A-Vr is much like all of the later Bosch alts with internal cooling. I just took my 120A 1.8t one apart and it is a PITA.
A friend had a rebuilt bosch unit that he lent me to try and that too doesn't put out any voltage.
We've had all sorts of problems with Bosch reman alternators. They worked really well until Volvo put the alternator on the CAN network. The reman ones have a ton of trouble making the right charging voltage.
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