rjenman Posted December 31, 2005 Report Share Posted December 31, 2005 OK so I've had a problem for a while that my battery runs flat really easily. I was listening to my stereo for like 20 minutes when I waxed my car thisarv, so when I go to start her up she's flat as a tack........ no worries, got a jump start, headed off. Ran alright for a while but then the lights started going dim. So I pull into a side street and let it idle for 10 minutes or so.... pull off and the problem is still just as bad, and after a minute I couldn't even rev the engine without the lights off!! Ran without lights on, trying to get home, but then she won't even run with the lights off entirely and I broke down and had to call mum for a jumpstart again. Made it home with the lights off but the gauge lights were getter dimmer and dimmer on the 10 minute drive home. So yeh my new years eve is spent typing here. I figure my alternator's had it and won't charge the battery properly or even give me enough AC to run the car at all.... considering putting the one off my KE30 parts car into it... sound right to you guys? :wink: Quote Link to comment Share on other sites More sharing options...
Fayt Posted December 31, 2005 Report Share Posted December 31, 2005 Its possible... :wink: i think i need to replace my altinator, cos when my rolla is idling the headlights flicker... Quote Link to comment Share on other sites More sharing options...
kangaroosa Posted December 31, 2005 Report Share Posted December 31, 2005 There is a few different style alternators. Denso and Bosch I think. Each have different style plugs. I wanted to change mine, but my 3 spares all had different plugs to each other..........and none of them was the one i needed. Thats just something to check first. Quote Link to comment Share on other sites More sharing options...
SLOTH Snr Posted January 1, 2006 Report Share Posted January 1, 2006 It sounds like the probable cause. Check your battery doesn't have a colapsed cell. If your running amps and shit,think about getting your alternaror uprated. Oh! and a bigger battery. A faulty starter can also cause battery drain Quote Link to comment Share on other sites More sharing options...
Medicine_Man Posted January 1, 2006 Report Share Posted January 1, 2006 The simple way to test your alternator, connect a multimeter up to the battery, start the engine and rev it up, you should see the voltage climb as you rev it, usually somewhere around 14v is put back into the battery if the alternator is doing its job properly.. Quote Link to comment Share on other sites More sharing options...
love ke70 Posted January 1, 2006 Report Share Posted January 1, 2006 ^^^what he said you drive a ke70 yes? if so they run a bosch alternator limited to 14.3 v when i tested the current back to my battery at idle it was 13.8 and fell away slowly with revs....weird i know but it does the job and along the lines of what sloth was saying if you want to uprate ur alternator this could be a good trick Ford falcon XF 60 Amp alternators can have the rotor and stator used in KE70 Bosch alternators... bumping it up from 30-40A to 60A, perfect or EFI upgrades to K series motors.. you use the KE70 front and rear housing, but the regulator is identical. it makes the whole thing about 5mm longer, so you need to find longer bolts to hold the alt together, and make a small spacer at the rear mount to the bracket on the block. source: http://www.toymods.net/forums/showthread.php?t=260 let us know how the readings go :wink: Quote Link to comment Share on other sites More sharing options...
Corolla_Kid Posted January 1, 2006 Report Share Posted January 1, 2006 Rollaclub FAQ has a more detailed explanation of that ^^^^^^^^^^^ Quote Link to comment Share on other sites More sharing options...
love ke70 Posted January 1, 2006 Report Share Posted January 1, 2006 i will finish reading the faq one day Quote Link to comment Share on other sites More sharing options...
Rolla__Boy Posted January 1, 2006 Report Share Posted January 1, 2006 Correct charging voltage is between 13.5 and 14.5, anything higher and you will boil you're battery and it will die. The voltage shouldn't really climb with revs, given that these cars are old, they will to a certain extent, but generally they should be around the same at idle as full noise. The plugs can be changed to suite the different brand altenators if you really want to use the other brand. Bosch are generally the best ones. The battery shouldn't be the problem here, as a car will run without a battery in it, the altenator provides all the power. Since you have a spare, just swap it over and check. Quote Link to comment Share on other sites More sharing options...
love ke70 Posted January 1, 2006 Report Share Posted January 1, 2006 strange that it dies, and you can jumpstart it and keep going, it may well be the alternator giving no charge, but for the car to run for 10 minutes of a jump start is impressive Quote Link to comment Share on other sites More sharing options...
rjenman Posted January 1, 2006 Author Report Share Posted January 1, 2006 yeah i did run it for a bit after it was jumped, with the leads still connected to the donor battery... I'm guessing that I charged the battery a bit and it got charged by my alternator a bit once it was going but not much... I think my alternator is dysfunctional but not yet broken. today i charged the battery with a charger... and put it in, the car started first go. Then it started doing it again after like 20 minutes or something and I came home. Only just made it I think, twas dying. I don't want to buy a new alternator or get it fixed if I don't have to because I'm planning on getting a whole new motor very soon. Quote Link to comment Share on other sites More sharing options...
Rolla__Boy Posted January 1, 2006 Report Share Posted January 1, 2006 The reason is, the car is running off the battery, not the alternator, and the battery is going flat really quickly. Fix the alternator or your battery will die too Quote Link to comment Share on other sites More sharing options...
James Posted January 1, 2006 Report Share Posted January 1, 2006 If you feel adventurous, Gregory will tell you how to recondition your alt. Gregory helped me to recondition my starter motor on my AE82 when it stoped working, I am sure he wont mind helping you Quote Link to comment Share on other sites More sharing options...
Rolla__Boy Posted January 1, 2006 Report Share Posted January 1, 2006 You need a press to press the slip ring on. But other than that you can do it all yourself. Quote Link to comment Share on other sites More sharing options...
kangaroosa Posted January 1, 2006 Report Share Posted January 1, 2006 I bought a brand new alternator for my KE30, for about $130-150. Just lash out and do it. Or it will cost you almost double that when you have to buy a new battery too. Quote Link to comment Share on other sites More sharing options...
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