New and Used Car Talk Reviews Hot Cars Comparison Automotive Community

The Largest Car Forum in the Philippines

Results 1 to 13 of 13
  1. Join Date
    Apr 2010
    Posts
    746
    #1
    My dash, park, and map lights flicker slightly Ride is a Terrano TD27T

    Replacement 70A alternator na ito (acquired brandnew, 4-6 yrs ago ata). Napansin ko nag ganito na siya nung nabasa ko ang alternator when changing the radiator hose

    Malakas pa naman kumarga, tested with a battery shop and may sarili rin akong VOM - around 13.9-14.2V when idle.

    May nabasa ako somewhere na i-set ko ang VOM ko to Vac mode, pag measure ko at the battery terminals, meron 30.5Vac, kelangan daw negligible ang presence ng AC sa system.

    Nag research ako and possible na rectifier ang problem neto. Mga magkano kaya ito? Ano ba usually ang wear and tear parts ng alternator and usual prices, para makapag-ready ako pag binaklas nila at isahang gawa na lang

    Or mas worth it bang i-swap ko na lang for a surplus higher-amp alt? Ang direct fit lang yata sakin is from an Urvan na 90A, kung may masuggest kayo na 100A+ with minimal bracket conversion mas ok. Thanks!

  2. Join Date
    May 2009
    Posts
    1,990
    #2
    Quote Originally Posted by ParticleX View Post
    May nabasa ako somewhere na i-set ko ang VOM ko to Vac mode, pag measure ko at the battery terminals, meron 30.5Vac, kelangan daw negligible ang presence ng AC sa system.

    Nag research ako and possible na rectifier ang problem neto. Mga magkano kaya ito? Ano ba usually ang wear and tear parts ng alternator and usual prices, para makapag-ready ako pag binaklas nila at isahang gawa na lang
    hmmm. ngayon ko lang nalaman yang "presence of AC". maresearch nga din.

    kung rectifier, parang less 1k iirc. the usual wear & tear parts? carbon brush, bearing, pulley & belt, stator winding (insulation), rotor. atsaka oil seal (kung may kasamang vac pump)

    kung yung made in china na alternator iyan e baka nga ganyan din talaga ang lifespan. magpalit ka na lang (siguro) ng surplus pero kelangan din iinspect ang internal parts.

    as long as wala kang power consuming devices aside from oem e ok naman yang 70 amps.

    - - - - - - - - - - - - - - - - - - - - - -

    Quote Originally Posted by ParticleX View Post
    May nabasa ako somewhere na i-set ko ang VOM ko to Vac mode, pag measure ko at the battery terminals, meron 30.5Vac, kelangan daw negligible ang presence ng AC sa system.

    Nag research ako and possible na rectifier ang problem neto. Mga magkano kaya ito? Ano ba usually ang wear and tear parts ng alternator and usual prices, para makapag-ready ako pag binaklas nila at isahang gawa na lang
    hmmm. ngayon ko lang nalaman yang "presence of AC". maresearch nga din.

    kung rectifier, parang less 1k iirc. the usual wear & tear parts? carbon brush, bearing, pulley & belt, stator winding (insulation), rotor. atsaka oil seal (kung may kasamang vac pump)

    kung yung made in china na alternator iyan e baka nga ganyan din talaga ang lifespan. magpalit ka na lang (siguro) ng surplus pero kelangan din iinspect ang internal parts.

    as long as wala kang power consuming devices aside from oem e ok naman yang 70 amps.

  3. Join Date
    Feb 2009
    Posts
    5,167
    #3
    Check voltage drop across the I/P ground wires

  4. Join Date
    Apr 2010
    Posts
    746
    #4
    Quote Originally Posted by miked View Post
    hmmm. ngayon ko lang nalaman yang "presence of AC". maresearch nga din.

    kung rectifier, parang less 1k iirc. the usual wear & tear parts? carbon brush, bearing, pulley & belt, stator winding (insulation), rotor. atsaka oil seal (kung may kasamang vac pump)

    kung yung made in china na alternator iyan e baka nga ganyan din talaga ang lifespan. magpalit ka na lang (siguro) ng surplus pero kelangan din iinspect ang internal parts.

    as long as wala kang power consuming devices aside from oem e ok naman yang 70 amps.
    Unipoint yung replacement, Taiwan yata. May minor sound setup ako and before summer, magpadagdag ako ng aux fan, so an upgraded alternator will be beneficial. Pano ba chinecheck ang used alternators? I-swap ko na lang siguro yung nakakabit para bawas pa sa presyo kung hindi naman nagkakalayo ang repair sa surplus alt.

    Quote Originally Posted by jick.cejoco View Post
    Check voltage drop across the I/P ground wires
    IP - injection pump? I believe ok ang wirings ko ngayon, I have it rewired already plus I added additional batt-engine-body ground using welding cable
    Last edited by ParticleX; November 25th, 2015 at 12:29 PM. Reason: double post

  5. Join Date
    May 2006
    Posts
    632
    #5
    i think your generator (not alternator) is working fine. 30.5Vac though is too much maybe you mean 30.5mV (milli volts) the generator is producing filtered ac voltage (half sine wave - produced from the rectifier).

    IP= instrument panel

    - - - - - - - - - - - - - - - - - - - - - -

    i think your generator (not alternator) is working fine. 30.5Vac though is too much maybe you mean 30.5mV (milli volts) the generator is producing filtered ac voltage (half sine wave - produced from the rectifier).

    IP= instrument panel

  6. Join Date
    Apr 2010
    Posts
    746
    #6
    Quote Originally Posted by t2erns View Post
    i think your generator (not alternator) is working fine. 30.5Vac though is too much maybe you mean 30.5mV (milli volts) the generator is producing filtered ac voltage (half sine wave - produced from the rectifier).

    IP= instrument panell
    IIRC 30.5V nga yun since I set the VOM to display 20Vac, recheck ko mamaya

    Pati rin sa park and map lights eh may slight flicker din eh, dunno if mataas nga voltage drop sa instrument panel. Sa weekend ko na lang recheck kasi I have to cuss everytime I yank the dash sa hirap
    Last edited by ParticleX; November 25th, 2015 at 05:19 PM. Reason: double post

  7. Join Date
    Feb 2008
    Posts
    9,431
    #7
    nag flicker din optitron gauge ng toyota namin. dont know where to start checking.

  8. Join Date
    May 2009
    Posts
    1,990
    #8
    Quote Originally Posted by crazy_boy View Post
    nag flicker din optitron gauge ng toyota namin. dont know where to start checking.
    battery....paload test mo muna.

    - - - - - - - - - - - - - - - - - - - - - -

    Quote Originally Posted by crazy_boy View Post
    nag flicker din optitron gauge ng toyota namin. dont know where to start checking.
    battery....paload test mo muna.

  9. Join Date
    May 2009
    Posts
    1,990
    #9
    Quote Originally Posted by ParticleX View Post
    Unipoint yung replacement, Taiwan yata. May minor sound setup ako and before summer, magpadagdag ako ng aux fan, so an upgraded alternator will be beneficial. Pano ba chinecheck ang used alternators? I-swap ko na lang siguro yung nakakabit para bawas pa sa presyo kung hindi naman nagkakalayo ang repair sa surplus alt.
    kadalasan may test rig yung mga surplusan...dalhin mo na rin yang DVOM mo.

    kung sinet mo sa 20 VAC yung scale sa meter mo e hindi mo mababasa yung 30.5 VAC. baka 3.05 VAC kamo. or even lower

    start ka muna sa battery (load test blah blah), terminals, grounding points then supply lines.

    - - - - - - - - - - - - - - - - - - - - - -

    Quote Originally Posted by ParticleX View Post
    Unipoint yung replacement, Taiwan yata. May minor sound setup ako and before summer, magpadagdag ako ng aux fan, so an upgraded alternator will be beneficial. Pano ba chinecheck ang used alternators? I-swap ko na lang siguro yung nakakabit para bawas pa sa presyo kung hindi naman nagkakalayo ang repair sa surplus alt.
    kadalasan may test rig yung mga surplusan...dalhin mo na rin yang DVOM mo.

    kung sinet mo sa 20 VAC yung scale sa meter mo e hindi mo mababasa yung 30.5 VAC. baka 3.05 VAC kamo. or even lower

    start ka muna sa battery (load test blah blah), terminals, grounding points then supply lines.

  10. Join Date
    Apr 2010
    Posts
    746
    #10
    Quote Originally Posted by miked View Post
    kadalasan may test rig yung mga surplusan...dalhin mo na rin yang DVOM mo.

    kung sinet mo sa 20 VAC yung scale sa meter mo e hindi mo mababasa yung 30.5 VAC. baka 3.05 VAC kamo. or even lower

    start ka muna sa battery (load test blah blah), terminals, grounding points then supply lines.
    Nakaset to 200Vac reading, around 29-30.5Vac ang display

    Already load-tested, and may spare akong brand new battery din. same
    batt terminals not corroded, cleaned
    Cleaned grounding points, ganun pa rin

    Sa mga napagtatanungan ko, around 5-6k ang 110A na alternator, supposedly Nissan so plug and play na lang. Parang ang mahal, nababasa ko sa forums around 2-3k lang ang surplus alts, or pang gas engines lang yun (without the vacuum(?) line)

  11. Join Date
    Feb 2008
    Posts
    9,431
    #11
    try mo mag inquire dito.
    Mardenrey Auto Electrical Shop
    nagpopost dati dito sa tsikot anak niyan, nagpagawa na ako before ng alternator ok naman sila. wholesaler sila ng surplus parts. if im not mistaken, mga shops sa banawe dito kumukuha.

  12. Join Date
    Oct 2002
    Posts
    2,719
    #12
    Quote Originally Posted by ParticleX View Post
    Nakaset to 200Vac reading, around 29-30.5Vac ang display
    You must be using one of those cheap chinese multitester (like DT830B in cdrking). Try reversing the probes to check you battery voltage, you'll read 0 volts.

    You need to use true rms multitester to have proper readings.

  13. Join Date
    Apr 2010
    Posts
    746
    #13
    Quote Originally Posted by kinyo View Post
    You must be using one of those cheap chinese multitester (like DT830B in cdrking). Try reversing the probes to check you battery voltage, you'll read 0 volts.

    You need to use true rms multitester to have proper readings.
    Ha, sakto pa yung model Walang budget pang Fluke

    Anyway pumunta na ako ng Mardenray. Slight OT mali ata yung address dun sa Google Maps, sa Waze yung tama

    Pimabaklas ko muna yung alt ko for diagnosis. Ok naman daw and buo pa mga diodes, kaso wala ata silang pang check nung IC. Since andun na rin ako, nag go na ako for upgrade

    Kinabit is from a Kia Carnival daw na 120A, nabura na kasi label - mas malaki ng onti compared sa nakakabit dati. 4k with labor and tradein ng replacement alt ko. Di na ako tumawad. Tinabasan onti yung mounting ears nung alt and may slight modification lang sa brackets

    Medyo nakalayo na ako saka ko lang napansin yung hand brake indicator, paguwi ko tanggal pala yung isang vacuum line(?), bumili na lang ako ng bagong hose kasi mas malaki yung fitting nung surplus alt

    Per initial observation wala nang flickering and mas lumakas yung fans ko. 30 days warranty except sa oil seals and regulator sabi sa receipt wc I find uncomforting - may nakasabay ako na Pajero and sa kanila din galing yung surplus alt, nagloko na after 2 months

Tags for this Thread

Dash lights flickering