corolla gl ignition coil

**error47** · March 9th, 2011 04:55 PM

Guys I need help and opinion regarding what I have experiencing on my corolla gl (small body).. Here is the scenario, let say nagdridrive ako for 2-3hrs continuously then suddenly mag drop drop ang rpm ko and my engine shuts off. Then I’ll be having a hard time to start the engine. The engine cranks but ayaw tumuloy. After 15 minutes engine starts again pero parang palyado sya and after looking sa spark plug all 4 is soaked with carbon.

List of I’ve done to eliminate this unusual thing.
1. replace HT wires
2. replace spark plug
3. replace ignition coil (circuit brand).. kasi eto ang tingin kong culprit of problem.

Tapos another thing pa na naramdaman ko is after replacing my ignition coil, once in a while my rpm seems so restless, malikot sya even pakiramdam ko sa makina is stable naman.

Ano po ba gamit ng condenser yun sa may naka dikit sa distributor cap?

Help naman guys ano kaya problema ng auto ko.. thanks.

**sirkosero** · March 9th, 2011 11:15 PM

rich lang mixture mo bro. have the carb checked/adjusted. it may also need overhauling. replace mo na din air filter mo kung madumi na.

**macgyver1432000** · March 10th, 2011 10:50 AM

Originally Posted by error47

Guys I need help and opinion regarding what I have experiencing on my corolla gl (small body).. Here is the scenario, let say nagdridrive ako for 2-3hrs continuously then suddenly mag drop drop ang rpm ko and my engine shuts off. Then I’ll be having a hard time to start the engine. The engine cranks but ayaw tumuloy. After 15 minutes engine starts again pero parang palyado sya and after looking sa spark plug all 4 is soaked with carbon.

List of I’ve done to eliminate this unusual thing.
1. replace HT wires
2. replace spark plug
3. replace ignition coil (circuit brand).. kasi eto ang tingin kong culprit of problem.

Tapos another thing pa na naramdaman ko is after replacing my ignition coil, once in a while my rpm seems so restless, malikot sya even pakiramdam ko sa makina is stable naman.

Ano po ba gamit ng condenser yun sa may naka dikit sa distributor cap?

Help naman guys ano kaya problema ng auto ko.. thanks.

error47,
Sabi mo after 2-3 hours of driving, then suddenly, your engine shuts off. Sobrang init na nung ignition coil mo, burdened sya masyado. My question: (1) nasa tamang air gap ba ang contact point mo? (2) meron bang resistor yung ignition coil mo (the white rectangular one)?

Tama rin sabi ni sirkosero, naka rich mixture ang carburator mo. Try to adjust the idle mixture screw (2 1/2 to 3 turns paluwag..sikipan mo muna then paluwag). Dapat ang sunog ng spark plugs mo ay brownish or tan..saka dry lang sya.

Ang condenser ay syang nag store ng kuryente para di agad masunog ang contact point mo from arcing.

**error47** · March 10th, 2011 11:29 AM

yes.. meron syang resistor. yun nakalawit na kulay puti.. meron din condenser.. about sa contact point? yun ba yun parang lead sa gitna ng distributor cap na dumidikit sa rotor? meron kasi ako nakausap na fellow tsikoteer, ang sabi nya malamang ang problema ko daw is igniter kaya daw pag umiinit namamatayan ako at nawawalan ng spark yun spark plugs ko. about sa carburetor, kaka overhaul lang nito at matino. kapapalit ko lang ng ignition coil, nagbakasakali ako na nandito ang culprit of problem... ano kaya problema ko talaga. natatakot ako ilayo yun auto ko eh.

**macgyver1432000** · March 10th, 2011 02:01 PM

error47,

Ang contact point ay isang switch na nagbibigay ng kuryente sa ignition coil, hindi sya yung contact na nasa gitna ng distributor cap na dumidikit sa rotor. Pero, may nabanggit kang "igniter"...so it seems na ang distributor mo ay di na gumagamit ng contact point at condenser, kundi electronic ignition na sya. Question pala..ano itsura ng ignition coil mo...yung para bang bote ng dede or parang miniature transformer na square? Kung ang distributor mo ay may electronic ignition, nasa loob ng distributor ang ignition coil mo, pero kung nasa labas at itsurang bote ng dede, ang distributor mo ay gumagamit pa ng contact point at condenser.
Error47, try mo munang paliitin ang air gap ng spark plugs mo. Kung 4A engine ang GL mo, ang spark plug gap nya ay 0.8mm or 0.031in. Gamitan mo ng feeler gauge. Saka adjust mo na rin idle mixture sa carb mo.
Eto pala pic ng contact pioint: http://www.google.com.ph/imglanding?...w=1280&bih=864

**error47** · March 10th, 2011 08:07 PM

macgyver..

thanks for a wonderful input... bale yun distributor ko has a ignition coil na nasa loob ng distributor, nasa loob sya ng distributor cap pag ikinabit. At napansin ko rin may two wires na connected sa ignition coil ko ng inalis ko ito, nasa lower part sya ng distributor, I think eto yun sinasabi based sa mga forum na igniter or ignitor. yes tama ka nasa loob nga ang ignition coil ko so ibig sabihin ba nito electronic ang distributor ko? So im not using contact point anymore. May nabanggit ka rin na spark plugs gap, right now kasi I'm using ngk long tip na plugs. Hindi lang ako familliar dun sa mga sinabi mong gap. Baka meron ka marerecommend sakin na spark plugs. Anyway meron ako pics na attached dito para makita mo. Hope this will help para maidentify mo.
thanks mac

http://s1118.photobucket.com/albums/...467/?start=all

**macgyver1432000** · March 10th, 2011 08:30 PM

error47,

Ang recommended spark plug type for 4A engine is: (1) NGK type: BCRE527Y or BKR6EYA... (2) DENSO type: QJ16AR-U or K20R-U.
See this link para sa spark plug gap: http://www.google.com.ph/imglanding?...w=1280&bih=864
Yes, di ka na gagamit ng contact point at condenser saka less maintenance ang electronic ignition. INgatan mo lang na wag mabasa ang loob ng distributor mo, lalo na kung magpapa-engine wash ka.
Add ko itong link for spark plug analysis: http://www.gnttype.org/techarea/engine/plugs.html
Para malaman mo kung anong nangyayari sa loob ng combustion chamber ng engine mo.

**error47** · March 10th, 2011 09:36 PM

mac,

i will muna adjust the air from carb.. then siguro linisin ko muna yun wiring ng pinagkabitan ko ng coil.. makikiramdam muna ako.. sana may problem will solved by replacing that ignition coil.. wag nman sana sira ang igniter ko kasi mukang mahal ito.. thanks a lot.