Scutch0 Posted June 3, 2014 Share Posted June 3, 2014 Just got the supra out of hibernation the other day, and has been driving a dream, however today I was charging my phone with the engine running, ad noticed the following warning lights on. oil pressure Bulb out Cat temp battery I have a volt gauge in the car and it was showing 12v instead of the usual 14v whilst running... Now I know that points to the alternator being at fault as the drive belt is fine and on the pulleys. But why would I have all other other warning lights? I'm currently leaving the battery off for a while hoping the system will reset itself. Quote Link to comment Share on other sites More sharing options...
mellonman Posted June 3, 2014 Share Posted June 3, 2014 its nearly always an alternator when you have these issues Quote Link to comment Share on other sites More sharing options...
TT Paul Posted June 3, 2014 Share Posted June 3, 2014 check the voltage when running should be 14v if not as suggested, its probably the alternator Quote Link to comment Share on other sites More sharing options...
Scutch0 Posted June 3, 2014 Author Share Posted June 3, 2014 It's only at 11v so I'm convinced it's the alternator Quote Link to comment Share on other sites More sharing options...
Havard Posted June 3, 2014 Share Posted June 3, 2014 It might be the alternator..!! Quote Link to comment Share on other sites More sharing options...
Scutch0 Posted June 3, 2014 Author Share Posted June 3, 2014 Ok then, can I buy the alternator rebuild kit from anywhere? Like just the voltage regulator? Or where's the cheapest place to get an alternator from? Quote Link to comment Share on other sites More sharing options...
TT Paul Posted June 3, 2014 Share Posted June 3, 2014 keron, ebay etc.. Quote Link to comment Share on other sites More sharing options...
Scutch0 Posted June 3, 2014 Author Share Posted June 3, 2014 Ok ta for you're assistance guys. Are the na & tt alternators identical? I know the auto has the 100amp whereas the manuals have a 90amp, but can you fit any on my na? Or do I have to get a na manual specific one? Quote Link to comment Share on other sites More sharing options...
Marty Posted June 3, 2014 Share Posted June 3, 2014 Take it to your local auto electrical place to get repaired. Cheaper than buying a second hand one. Quote Link to comment Share on other sites More sharing options...
Scutch0 Posted June 3, 2014 Author Share Posted June 3, 2014 Brilliant. Will do! Thanks for the help! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 4, 2014 Share Posted June 4, 2014 Toyota list regulator and rectifier block separately. Probably available in the autoelectric aftermarket, too. Quote Link to comment Share on other sites More sharing options...
Scutch0 Posted June 4, 2014 Author Share Posted June 4, 2014 I rang toyota today, apparently only the regulator is available at present and that was £125 +vat. I have found a company in California who can supply both the regulator and rectifier for £36 delivered (before import tax). stripped mine down today and everything else seems fine, so should be good with just those changed hopefully. I'll keep you all updated, if this turns out to be a viable option! it could end up being a lot cheaper for people in the future. Quote Link to comment Share on other sites More sharing options...
Marty Posted June 4, 2014 Share Posted June 4, 2014 Mine cost me ~£30 fixed from the local autoelec. He said the parts were readily available. You shouldn't need to source any of them yourself Quote Link to comment Share on other sites More sharing options...
Scott Posted June 4, 2014 Share Posted June 4, 2014 Could be the alternator. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 4, 2014 Share Posted June 4, 2014 if you have a quick search on YouTube there are probably videos of how to test the rectifier, and more than likely the regulator, too. maybe not a Supra one, but a regulator is a regulator, blah blah Quote Link to comment Share on other sites More sharing options...
Scutch0 Posted June 5, 2014 Author Share Posted June 5, 2014 Well my local auto electrician wants to strip it down himself, at 1 hours labour before they do anything, so I figured I'd try to source the parts myself instead. Quote Link to comment Share on other sites More sharing options...
Scott Posted June 5, 2014 Share Posted June 5, 2014 An hour to strip down an alternator? It takes no time at all when you have the right tools. Pretty sure the regulator is right there on the back too. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 5, 2014 Share Posted June 5, 2014 An hour to strip down an alternator? It takes no time at all when you have the right tools. Pretty sure the regulator is right there on the back too. It may still be on the engine... Quote Link to comment Share on other sites More sharing options...
Scott Posted June 5, 2014 Share Posted June 5, 2014 It may still be on the engine... He may also be factoring in a sandwich or a morning deuce Quote Link to comment Share on other sites More sharing options...
Scutch0 Posted June 5, 2014 Author Share Posted June 5, 2014 Nah, that was for me taking off the alternator (which I've already done) and taking it to him, as he charges £60 perhour I've already taken it to bits an have now ordered what I needed, grand total of £29 delivered from California, however ill still have import tax on that no doubt. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 5, 2014 Share Posted June 5, 2014 If it's in bits I would consider changing the brushes and bearings, too. Slip ring wear is much trickier, I have tried and failed on a couple... Quote Link to comment Share on other sites More sharing options...
Scutch0 Posted June 6, 2014 Author Share Posted June 6, 2014 I'm changing the brushes, but the bearings seem absolutely fine, no noise at all, so I think I'll leave them. But cheers for the info! I'll keep you all updated on how it goes. Quote Link to comment Share on other sites More sharing options...
Scutch0 Posted June 12, 2014 Author Share Posted June 12, 2014 Well I got the parts from America today, fitted them, and it works fine, cost be £29 landed in the end, no import tax to pay. Much cheaper way of fixing a dead alternator, really easy to change the parts over too, takes about 4 minutes once you've got it off the car. It's this one you need if anyone's interested. http://www.ebay.co.uk/itm/Toyota-27060-20110-ALTERNATOR-REGULATOR-REPAIR-KIT/370862956488?_trksid=p2045573.c100033.m2042&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D22046%26meid%3D7573968611819047814%26pid%3D100033%26prg%3D9537%26rk%3D1%26rkt%3D4%26sd%3D370862956488 Quote Link to comment Share on other sites More sharing options...
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