HELP - Diagnose alternator issue for 1992 Liberty GX

ghetto-spec .:bayka:. · Post by **ghetto-spec .:bayka:.** » Wed Nov 27, 2013 11:46 am

Hi guys

I've got a 1992 Liberty GX, AWD 5spd, 2.2 injected. It is my first Subaru after being a toyota enthusiast for years. Have to say I love Subarus. Everything is just 'accessible' in the engine bay (maybe except spark plugs). ha.

Anyway, unfortunately it is not holding charge, only producing 10V or so at idle, but if I rev it to 1500rpm and up, it hits a happy 13.5V no worries. This to me tells me it is a voltage regulator issue. I think this model is an internal voltage regulator so I may need to completely replace the alternator.

This is about $280 new so I don't want to spend my money if I don't have to.

Does my diagnosis sound correct? Can I just open the alternator up and replace the internal voltage regulator?

Most wreckers in Perth don't stock parts for 1992 libs anymore due to age, so I'm not sure what to do.

Cheers
Dan.
0402 394 978

tambox · Post by **tambox** » Wed Nov 27, 2013 11:53 am

Sounds like it could be the brushes.
Easy to replace
Make sure the slip rings the slip rings are ok.

ghetto-spec .:bayka:. · Post by **ghetto-spec .:bayka:.** » Wed Nov 27, 2013 7:08 pm

Cool thanks. I'll open it up and do the tests based on the Workshop Manual.

Might be just easier to bite the bullet and just get a whole new unit though :/