Cracked H4 Bulbs

[suysuy]

Guys, tanong ko lang, ano ba ang cause nitong pag crack ng mga bulbs ko? Im using Narva 100w/90w Rangepower White.

Nung una, after 6 months, 1 bulb cracked. Kaya bumili ako ng bago same bulb. Then kagabi lang, napansin ko biglang nag yellow ang ilaw ng isang bulb. eh yun pag tingin ko cracked nanaman. Pero umiilaw pa. Yun nga lang dilaw na ang ilaw hanggat sa wala na.

Nung una right side ngayon left side nanaman. Ano ba cause nito? 700 pesos a pair pa naman itong binili kong bulb

[suysuy]

[suysuy]

up up ang away

[ghosthunter]

Maybe someone touched the glass part of the bulb with bare hands.

[mbeige]

Or worse, greasy bare hands.

[washburn]

+1
sensitive pa naman yan

[glntVR]

Baka nga may nakahawak sa glass part. We have a thread here before about touching the glass part of bulbs before and how to clean it if you accidentally touch the glass part.

[XTO]

Next time pag nagpalit ka, iwasan mo hawakan ang glass. High wattage pa naman yan…. Tsaka I suggest wag na superwhite kunin mo yang 100/90W sa stock ang lakas na nyan.

[mbeige]

Yes, use a clean towel soaked with acetone or alcohol. Acetone evaporates quickly so whatever it wipes off also goes off, oils included. Before you use acetone, dilute it first, since it will also eat paint perhaps the covered tip of the bulb might get eaten away. I would say 50% would be a safe concentration.

Acetone is also used to clean glasswares used in laboratories.

[suysuy]

hindi ko naman hinawakan eh. never. eh baka yung nag tetest doon sa shop ang naka hawak. minsan binabalik balik lang sa case yan if ayaw ng buyer so maybe yun nga. so dapat pala linisan nalang talaga ito before mo gagamitin?

[suysuy]

just now nabasag nanaman yung isa. tsk tsk tsk! ano ba talaga cause nito? napapansin ko nangyayari ito kapag nag flaflash ako ng high beam ko.

di kaya electrical problem ito??? defective relay? it originates from the base of the glass. doon nag umpisa ang crack. papuntang gitna

[ARB]

what car? naka harness? try mo standing outside turn the lights on low beam then stand in front of the light. let someone change it to high beam and see if the low beam light turns off or stays on.

[badsekktor]

hmm mahirap yan ah.... meron ka ba kakilala na electrician? my guess is yun wiring ng headlight mo ang culprit. I might be wrong. check the voltage and current supplied sa terminal mismo. baka may voltage spikes na sobrang taas papaunta ng headlight circuit. bago ba yun sasakyan?

maaring may leak yun headlight assembly at may tulo ng tubig papunta sa bulbs

[badsekktor]

try mo magpalit ng ibang brands. ok naman ang narva eh. tumagal din ng 1 yr sa kin yan kaso napundi yun bright nung nasira yun alternator ko. medyo sensitive ang narva kapag nagkadiperensya yun electrical system ng sasakyan kaya ayun patay bright ko paraho.

[rion]

from this thread: http://tsikot.yehey.com/forums/showt...852#post943852

ganito setup ko sa city ko. look at my pic. narva super white bulbs 100/90 ceramic sockets ang upgraded relays and harness. tsaka ceramic fuse rin. kasi nag melt yung fuse casing noon.

so far ok naman. sarap pang biyahe sa madilim na lugar. naka try ako 10 mins on both hi and low. wala namang nangyari

of course, i only use it pag walang kasalubong. maganda din panglaban sa naka HID na iresponsable. isang pitik lang thats 380watts of light for you!

h11 ang fogs ko. h4 ang headlight ko. and yes pinamodify ko ang headlight ko. what you see in the pic is fogs+high and low both on

suysuy is running High beam with the low beam running too...

I think ito ang dahilan sa cracks...

[suysuy]

guys, alam ko na ang culprit.

since nag change ako ng ceramic socket, yeah cheap ones. napansin ko loose pala yung mga connectors. yung parang L na connector.

itim na itim siya. it is loose and it is causing heat. nabasa ko rin sa net na sensitive daw narva sa voltage eh. so far, its been already more than 1 month since bumili ako ulit. and i do a lot of long distance travel at night.

hindi na ulit siya nabiak. nag change ako ng mas magandang ceramic sockets. yung gold plated na terminals.