Jump to content
SAU Community

Batter Overcharging

lesseragitant

By lesseragitant,
in General Maintenance

 Share

Recommended Posts

lesseragitant Community Regular

lesseragitant

Posted
Posted (edited)

Hi guys

This is my second alternator in a span of few months & under 200k. 1st time, all the dash lights came on while driving & when i got home the battery leaked water & was flat. I checked the voltage & it was reading over 16v(maxed ).

So i thought its the alternator busted & got a 2nd hand one installed it & everything was fine straight away.

Then few days ago the above sequence of events happened again, but this time only the batt light came on. I had power to drive home.

So whats killing my alternator ?

Edited by lesseragitant
Link to comment
https://www.sau.com.au/forums/topic/387425-batter-overcharging/
Share on other sites
Carbon 34 Grand Master

Carbon 34

Posted
Posted

car shorts(not likely unless you have hacks in wires)? , bad battery, dead shorting inside the case (shite can that water battery there junk and part of the problem ) ? , too many RPM can kill them ? buy a underdrive pulley to slow it down

run a 4ga ground wire from the alternator bracket to the neg battery to improve voltage charging and spark voltage , upgrade the alterantor charge wire to 4GA and clean the voltage regulator plug connection with proper contact cleaner, check the connection of the factory battery grounds

do you rinse your engine off with water ? degreaser ? a huge blast of either can be fatal inside the alterantor.

dont spill oil inside it ?

dont use the crappy little jap batteries that come in GTT , and upgrade the connectors to australian sizes , car audio ones are best to use

if you run a big stereo then you have some other items to review.

mad082 Grand Master

mad082

Posted
Posted

given that the replacement alternator you bought was second hand, you can't rule out it just being on it's last legs and nothing more.

having said that, doing what carbon 34 said wouldn't be a bad thing to rule out other possible issues.

lesseragitant Community Regular

lesseragitant

Posted
  • Author
Posted

given that the replacement alternator you bought was second hand, you can't rule out it just being on it's last legs and nothing more.

having said that, doing what carbon 34 said wouldn't be a bad thing to rule out other possible issues.

I C ..ok thnx

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      R33 Fuel Pump & Brakes after alarm swap

      By GTSBoy · Posted

      Well, this is probably where a wiring diagram and a multimeter come into play.
    • Jarsky
      gauge needle removal

      By Jarsky · Posted

      I can say to anyone thats doing this; having done a number of R clusters; just be careful if its an unknown cluster.  It takes a bit of force to pull up; but if it feels excessive then its probably stuck. I've had this and pulled the entire hair spring out; and I can tell you; its not easy getting the correct spring replacement with the correct inner diameter and winding. In my case someone had used some sort of adhesive to stick it to the spindle and it pulled the whole spindle out; which the force seperated the hairspring from the spindal and caused it to deform.  You may have to clean it (IPA); or in my case if i'd known i should have used some sort of solvent on it.  Also check out Cruizin Central on eBay. He does all sorts of dials; and you can email him with any custom designs you want. So if you want like certain logos etc...he'll send you a mock of what it will look like then you accept the order and he'll take care of the rest. Fantastic dials and he can do basically any design you want. 
    • Jarsky
      R33 GTST Axles

      By Jarsky · Posted

      Have you confirmed its the actual axles? Also the wheel bearings that mount on the hubs to hold the axles wear out. I replaced mine as they got play in them. It sorted my play issue. 
    • Jarsky
      R34 Speedo not working after manual swap

      By Jarsky · Posted

      Ive converted a few clusters for the R33 with 320km/h dials. On the back there are some pads which can be bridged or unbridged (using solder or wick braid) to calibrate it. There is one bridge which is for MPH <> KPH; and there are combinations of bridges to offset it. There is probably a diagram  For example; this is my conversion for a 180km/h dial to a 320km/h dial (I put custom GT-R dials on it with the GTS25t layout) If you have J2 soldered (assuming the S clusters have a similar config to the R clusters); you may need to remove that solder
    • Rezz
      DeAgostini 1/8 scale BNR32 Nissan Skyline GT-R Nismo

      By Rezz · Posted

      Back on topic 😉, these are some of the notable pages from the booklets that are supplied with each weekly parts update. I never knew the BNR32 test mule car had an S13 Silvia front end... *Edit: On closer inspection the test car still had the R32 body, but only the front end had Silvia panels etc.
×
×
  • Create New...