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GQ alternator
Posted: Fri Sep 18, 2009 8:49 pm
by GQSTU
hey guys i have a 89 GQ diesel patrol my alternator is not chargering and is leaking oil. a few things what is the going rate for a new alternator? whats the amp out put for a standard nissan alternator? And whats the biggest amp/ alternator you can get 4 the nissan ?
thanks, stu
Posted: Mon Sep 21, 2009 1:41 pm
by chimpboy
Alternators don't carry oil. So, you may have an oil leak near the alternator and this may be causing your issues.
Posted: Mon Sep 21, 2009 4:18 pm
by RAY185
chimpboy wrote:Alternators don't carry oil. So, you may have an oil leak near the alternator and this may be causing your issues.
Alot of diesels have a vacuum pump built onto the back of the alternator which have oil running through them.
Posted: Mon Sep 21, 2009 5:29 pm
by chimpboy
RAY185 wrote:chimpboy wrote:Alternators don't carry oil. So, you may have an oil leak near the alternator and this may be causing your issues.
Alot of diesels have a vacuum pump built onto the back of the alternator which have oil running through them.
Woops, sorry. I am not switched on to diesels!
Having said that, if the vacuum pump is leaking that might not mean the alternator part is dead, the vacuum pump might be what needs an overhaul.
Posted: Mon Sep 21, 2009 6:14 pm
by Tiny
will be the vac pump for sure, the pump sits at the back of the main body of the alternator, may just need a wee tighten up here and there, degrease it and check where it is coming from
Posted: Mon Sep 21, 2009 6:50 pm
by ozy1
sounds like the rear shaft seal between the alt and vac pump has gone, i will either just be a seal or it wilol be a scored shaft as well,
this allows the oil to enter the alt housing and drain out a small drain hall in the bottom of the alt,
last time mine went it cost me $500, was urgent, and included a full rebuild,
but you can find after market higher out put alts with vac pumps through a company in QLD called AE auto electrical i think,
standard alt puts about between 50-60amps,
Posted: Mon Sep 21, 2009 10:50 pm
by rumpig89
ozy1 wrote:but you can find after market higher out put alts with vac pumps through a company in QLD called AE auto electrical i think,
standard alt puts about between 50-60amps,
there is a company called AEA (auto electrics australia) have brought from them through a local auto electrical shop with great results. they also have a 120 amp that will bolt straight up if our were after an uprade.
Posted: Fri Oct 09, 2009 8:33 pm
by Dominator
As said above standard alternator is 60A. I just upgraded to a 120A unit from AEA. Sourced it from my local auto sparky. From memory was around $500. Straight bolt in replacement. The way to go if you are going to replace.
Posted: Fri Oct 09, 2009 10:58 pm
by presto
the seal commonly goes on these, quite often damages the shaft beyond scrap. if you open it up and have a look, you might get away with just a clean and a new seal before it does too much damage. if not, i deal with AEA alot and they make decent stuff so i agree with the upgrade.