Replacing an alternator

Submitted: Thursday, May 25, 2006 at 18:39
ThreadID: 34257 Views:2823 Replies:4 FollowUps:0
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Hi all,

The vacuum pump on the alternator (91 hilux 2.8D) is dying... The brake light is on almost all the time now and the pedal is getting heavier.

Can I just replace the vacuum pump? If I have to replace the whole thing, roughly how much will it cost and is it possible to install a higher capacity alternator? The current alt is 55amp I am thinking of installing around 90-110amp as I would like faster charging when on camping trips.

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Reply By: 100TD - Thursday, May 25, 2006 at 19:44

Thursday, May 25, 2006 at 19:44
hey m &m do you have a r&e auto up there???they have a range of alternators and starters to suit many vehicles ie i bought a alt to suit my mates diesel 60 series (was 40 odd amp ext reg crappy thing not designed to charge 2 batteries)now its int regd voltage sensing 80A for $300 including new vacuum pump ready to go.damn good value i reckon.cheers Paul
AnswerID: 174740

Reply By: Member - Howard (ACT) - Thursday, May 25, 2006 at 23:15

Thursday, May 25, 2006 at 23:15
Hi Michael,
my son has same vehicle as you and his alternator died late last year,
I think toyota was asking around $900 but he got one thru local auto elect for $500.
was identical to one we took off which was original AFAIK.
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AnswerID: 174793

Reply By: robak (QLD) - Friday, May 26, 2006 at 09:53

Friday, May 26, 2006 at 09:53

I just replaced my alternator with the vacum pump last night (TD27). If I were you I'd replace the whole thing and not just the pump. It wouldn't cost much more and if you already have oil leaking back there, the alternator is not performing 100% anyway.

AnswerID: 174845

Reply By: wheeleybin - Friday, May 26, 2006 at 10:31

Friday, May 26, 2006 at 10:31
There are quite a few alternators available but increasing the Amp capacity does not necessarily give you greater charging as if the overall size is the same then the increased capacity will give inreased heat and restrict the capacity to improve your situation of charging unless you have thermal control of the alternator.

Go for a complete unit for as sure as hell you will replace the pump and then the alternator will die.Bugga.Oh what a feeling.


AnswerID: 174859

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