ALternator n b b prob?

[threx666]

mga sir,

gud am po!tanong or advice po sana kung ano sira nung ride ko?

bale po tumatakbo kami knina sa edsa pauwi sa bhay when suddenly my gauge showed the Battery signal , at first i thought na grounded lang or intermitttent yung wiring kasi minsan nag iilaw yung batt sa panel ko din nawawala nmn.

after runnning quite a long i noticed the batt signal is stilll ON,this time medyo isip na ko so by the time na nakauwi kami ng bahay i turn off the engine tpos try to start the engine ayaw , as in yung tunog e trrrrrk parang drain yung yung batt ,wala redondo e, try many times ayaw talaga i try to tulak then try to start OK na.

but when i try to check batt using VOM/tester it still shows 12.++ volts if patay yung engine so i start the engine OK start sya but when i check the batt terminal using tester e voltage is going down to around 10.++ volts na lang ,

what bothers me is i remembered 1 tip from fellow tsikoteer is if patay engine OK lng yung 12V n testing but if the engine is running ,the Alternator should charge the batt so the Voltage should be around 12.++~ 13.++V n sya if meaured on the batt terminals.right?hehehe pls correct me if Im wrong mga sir

tanong ko lang po mag sir any ideas or inputs kung ano sira nito?is my alternator got problem?any other way to test if my alt is still ok/charging?

nakakatakot po kasi na bigla tirik ako minsan sa gbi di ko alam gagawin k

help naman po mga sir pls ,salamat po talaga sa mga inputs nyo in advance

ride po pala is Mitsu 7G galant

[v6dreamer]

The battery lights on the dash indicates that there is difference between the demand for electricity and the normal running current from alernator. It should not be coming out, if it is there is a problem in your charging circuit.

Will start from here. Is your battery new or old? If your batt. is more than 4 yrs, replace it now. First check all connection from the battery to the alternator make sure all the connections are tight and free of rust and dirt. Check local shop or auto supply kung may alternator checking station sila at dalhin mo doon.

Here some that needs to check:

Broken alternator belt (not fan belt) for cracked and also slippage.
Bad voltage regulator.
Bad alternator. Most mechanics shop can measure the voltage output of your alternator assembly and check for irregular/bad output. If it is replaced it.

[bambino]

charging should be at least 14v at idle without load .
batt light in your cluster means something's wrong within your charging system . possible troubles are ; carbon brushes worn - out , rotor , stator , voltage regulator or the rectifier assy. assuming that your wires are OK , and the alternator is turning at required RPM .

[threx666]

mga sir,

salamat po sa reply at helps,

*sirv6dreamer ,

bago po yung batt mga cguro 6 months p lang yun ,tsek ko na rin yung alt belt kapapalit din lang yun las 4 months ago kasama ng PS belt ,tska yung terminals nmn ng batt bale kapapalit din lng mga 2 days ago.

bale anytips on how to check if my voltage regulator is Good or No Good?

*sir bambino

yun nag sir bale during engine OFF batt voltage is around 12.++V but durin idle wlang load nsa 11.++V lng

bale balak ko sana tanggalin na lng yung alternator at dalhin yung Alt sa shop kaso anlakas ng ulan hehehe

bale DIY tsek ko na lng sana muna dito sa bahy kung yun nga sira para sigurado ko at least konti lang downtime hirap din lumayo baka tirik aabutin ko e hehehe

salamat po uli sa inputs keep it coming po hehehehe

[rion]

kahit e-rev mo, no voltage increase pa rin ba?

[threx666]

*sir rion

di ko pa natatry kung irev sir e,pero dati kasi kahit di irev e nagchcharge na sya e ,this time wla n talaga sir patuloy na bumababa yung voltage e!

dpat po ba irev ko tlaga ?

[bambino]

check the alt batt term you should get a 12v ( key on , engine off)
the 2 terminal connector , one is the light and one is the batt feed . if you get 12v on all of the three that must be your alt . if you know how to open it you may find there if the brushes are gone and to do a more complex testing , you should know how to test the field coil , stator , rectifier assy . the easiest thing to replace is the brushes . you only have to know how to solder .that way you save a lot of money.

[yapoy86]

check mo muna connection nung charging wire to your battery.. minsan sa lakas ng voltage na dumadaloy from the alternator nasusunog or corroded na yung charging pole from the alternator...

possible din na carbon brushes mo ay ubos na

[puroy]

suggest do the old school of testing weather it's a battery or alternator problem:

after starting the engine for about 5min, try to loosen and pull the positive terminal from the battery. if the engine's still running...possible low on battery power. if the engine stops, possible alternator problem. hth

[puroy]

suggest do the old school of testing weather it's a battery or alternator problem:

after starting the engine for about 5min, try to loosen and pull the positive terminal from the battery. if the engine's still running...possible low on battery power. if the engine stops, possible alternator problem. hth

[threx666]

mga sir,

update lang po ok na po yung ride ko bale yun nga tinanngal yung alt ko tapos binuksan ayun tsek yung mga diode at rectifier me nasunog n part

try pinalitan ng recond n alt ok n sya ,me binanggit yung mech na iniisip ko is yung alt na nkakabit is also not the orig alt (2nd hand lng po kc ride ko e)nasa 75A lng daw , kaya lng dapt daw ipatsek uli yun bakit bigla nasshort yung rectifier.

additional Q po sana, ano ba mga possible cases bkit nashort yung ic/diode sa loob ng alt?

possible po ba yung splashes from flood waters e magcacause ng shortage?

and 1 thing po i noticed after installation of the replacement alt is di kaagad nawala yung pagilaw ng batt dun sa gauge/panel, but after driving maybe 15 mins bigla naman nawala na ano po kaya sa tingin nyo?

slamat po uli sa mga inputs

[dadz]

If you like you can bring it to our shop we supply surplus electrical parts sa banawe thats our specialty electrical if your interested this is the address.

Mardenrey Auto electrical and surplus shop
1046 Panay St. Balic balic sampaloc manila.

look for robert or jul's tell them na friend kita my mom and dad is there also.

im norman nga pala nasa thailand ako.

good luck...........

[threx666]

*sir dadz,

salamat po sa offer kaso medyo malayo n e tsaka ok n sya ngyon e!nsa cavite area rin po ksi ko e!

anyway ill keep your offer in mind pag nagawi me ng banawe bro.

[v6dreamer]

No! It didnt cause by H2O.

Sa lahat ng parte ng alternator ay yong bridge rectifier ang pinakamadaling masira. Yong bridge rectifier ay yan ang nangko-convert to AC na dina-direct current(DC) naman ng alternator para sa sasakyan. Sa katagalan dahil sa masyadong mataas ang demand yong Diodes sa may bridge rectifier ay nanghihina, at hindi gaanong nagpa-function ng maganda na kagaya noong bago pa iyan alternator.

Malalaman mo kung ang yong bridge rectifier ay medyo pasira na, kapag sa umaga malamig ang makina at pinaandar mo at nakikita mong mas maganda ang charging keysa warm na ang makina alam muna na medyo malapit nang palitan. Kapag mainit masyado and diodes at bridge rectifier ay hindi rin maganda hindi maganda ang function.

Sa kataasan ng demand pag mas maraming kuryente ang isu-supply ng alternator dahil sa mga accessories sa kotse (Ex: lights, A/C, stereos at iba pa) na asking more power, the more current na iko-convert ng rectifier sa DC the more chances na mag-failure ang diode.

Kaya kapag itoy sira, most likely ang sasabihin natin ay Alternator na ang problema, which is true. It is not advisable just to change the rectifier or the diodes but the whole alternator na rebuilt or new. Chances are you can encounter one problem to another. So replaced the whole unit.

Medyo drain ang battery mo noon kaya may ilaw parin kahit bago ang alternator pero sabi mo nawala after 15 min. of driving, dahil na-charge na battery mo sa bagong alternator.

Good for you, you just solve your problem......

[threx666]

*sir v6,

salamat po tlaga sa info nagliwanag ng konti yung understanding ko tungkol sa alternator .

anyway i wish na ok n sana yung ride ko kasi madalang din nmn nmin gamtin yun e!hehehe mahal grbe gas !

salamt po sir and to all the fellow guys who helped out

peace brothers