Intermittent RPM when idle

[w3stic3]

question:

bat pag naka idle yung oto ko biglang bumababa yung RPM bago naman spark plugs ko, high tension wires. tsaka totoo ba na yung carburaetor magnetic jet dapat nag sspark sya whenever it makes contact with something inside the carb? yung sa oto ko kasi hindi eh, would that be one cause of that?

[w3stic3]

car ko nga pala 1993 honda civic LX (carb)

[gowthead]

ganyan din sa akin... 94 eg hatch ph12 carb type.... nagsawa na ko pagagawa sa mga mekaniko d2 pque bayad ka ng bayad la naman nagagawa...kapa system din naman sila madalas eh.... DIY ko na lang.. ,,, experiment ng mga iba ibang adjustment screws sa carb from air, to idling, to fast idle.masyado pa complicated ung cleaning ..research muna.. pati nga timing pinakialaman ko na din.. tutal ung last mechanic ginalaw na din without using a timing gun.....gusto ko nga try ipa overhaul carb kay speedy,,,la pa lang talaga ko breads ngaun...DIY muna...pag nasira makina may rason na ko mag engine swap hehe

[w3stic3]

try ko kaya palitan yung buong carb kasi malamang may somewhere dun sa carb eh. may tinakpan na dati dun yung mechanic pero bumalik nanaman yung sira. alam ko puwede i convert yung carb to EFI eh. para d na mag engine swap. try mo pihitin yung pin na nasa likod ng carb mo, see if that will make any difference. Hindi ba pumuputok yung muffler mo when u let go of the gas while the car is moving?

[Horsepower]

Baka yung Aircon compressor mo nag-eengage. Not sure but i think it's normal. Ganyan na ba talaga sya ever since?

[w3stic3]

ok naman a/c ko dude eh, the thing is, the problem happens when i turn the a/c off. I've had some issues with the idle up mechanism, nawalan lang nang contact, ni reseat lang ng mechanic and has been resolved. Im left with the idea of doing a top-ovehaul since Ive had overheating problems in the past. My ph12 engine has never been overhauled.

[w3stic3]

tsaka pala after a long trip, pag pinapatay ko yung engine parang may nadidinig akong sumusuka sa hood, im talking about the engine. not my drunk passenger. Ü the sound is like, kwuuuuuuuuk!!!! sometimes it's like, kwaaaaaakkkk!!... (i tried my best) LOL.

[Horsepower]

That is sooo weird. LOL.

yung ticking sound kasi after turning-off the engine is normal pero yung ganyan, ngayon lang ako nakarinig nyan. hehehe

[w3stic3]

carb kasi oto ko dude eh! maybe u deal more on EFI's. Im gathering some dough to do an engine swap the b16a eg is so expensive, the one that I know of was like 60k!

[puroy]

kung carb overhaul, sa m3m kamuning ka magpagawa 600 lang yung sakin. same tayo ng engine.