VVTi's Plastic Intake Manifold

[fenderbender]

Matibay ba itong mga to? Won't this crack in the long run?

I understand the Echo was the first VVTi equipped engine in the country. Any negative feedback on these plastic intake manifolds in your long term ownership?

Another thing about these new VVTi engines. I noticed they have only 1 auxiliary fan. Any overheating problems encountered with VVTi equipped cars in our hot country?

[odell]

my auntie has a alties vvti..

no problems naman...

siguro maintenance lang katapat..

[dave]

no problems with my Vios vvti... the engine is silent until now. ;)

[theveed]

plastic auto manifold covers have been around since the late 80's... it's not the first time it's used...

[JAYarc]

intake manif eh di naman sobra init compare sa exhuast manifold OK lang yun

[renz2004]

I think ok naman, I've had my Camry for a year ...so far, no problem

[pajerokid]

Is the INTAKE MANIFOLD made of plastic or is it just a cover???

[pissword]

aux fan, yung fan sa radiator? dalawa yung sa rav4

[jinggatch]

Hi guys, I have 06 Honda city 1.3 idsi, it has been jerking slightly for a couple of months now. I always feel it jerking between 1.5-2.5 RPM. but at high speeds, i barely feel that its still jerking, pero hirap na siya mag accelerate. I brougth it already to 3 honda Casa (alabang,pasig, magallanes) wala sila magawa, all they did is 1. regular PMS/Tune up,oil change etc. 2.Throttle body cleaning. sabi ng service advisor TP sensor daw, pero ginalaw un sensor, ramdam ko naman na na nag aadvance cya and delay, so it is working. they also checked fuel pump,filter and its ok, pero d mawala yun jerking nya, super less na yun power nya, tapos ang consumption ko for a full tank (32-35L) before nakaka ave. ako ng 500kms, pero now, swerte na maka 300KMS/fulltank. i brought it to an electrician, sinaksakan ng pang monitor ng computer box, pero all codes are working well.I even brought my friend's city just to compare readings, and the same lang ang results. gusto ng electrician ko is to thoroughly check the air intake system and fuel injectors to check kung malinis, takot lang cya kalasin yun intake manifold kasi plastic and pag kinalas, intake manifold gasket should be replaced. nag inquire ako sa honda Laguna kung pwede bumili ng gasket lang, bawal daw yun,tpos yun price nung gasket e 2k na agad, whereas meron din ako 97 sentra, ang mga gaskets around 300p lang, mapa anong engine gasket. But my question is, is it ok to go performing air/fuel system check to an electrician/mechanic? could you help me to find spareparts that I need for my honda at a reasonable price? or what else should I do before I take my car to the elecrtrician/Mechanic that I know? and, I installed racing filters with my engine a year ago, does it contribute to the jerking that I am experiencing right now? your suggestions will be really appreciated. thanks guys more power!!!

[ghosthunter]

Hi guys, I have 06 Honda city 1.3 idsi, it has been jerking slightly for a couple of months now. I always feel it jerking between 1.5-2.5 RPM. but at high speeds, i barely feel that its still jerking, pero hirap na siya mag accelerate. I brougth it already to 3 honda Casa (alabang,pasig, magallanes) wala sila magawa, all they did is 1. regular PMS/Tune up,oil change etc. 2.Throttle body cleaning. sabi ng service advisor TP sensor daw, pero ginalaw un sensor, ramdam ko naman na na nag aadvance cya and delay, so it is working. they also checked fuel pump,filter and its ok, pero d mawala yun jerking nya, super less na yun power nya, tapos ang consumption ko for a full tank (32-35L) before nakaka ave. ako ng 500kms, pero now, swerte na maka 300KMS/fulltank. i brought it to an electrician, sinaksakan ng pang monitor ng computer box, pero all codes are working well.I even brought my friend's city just to compare readings, and the same lang ang results. gusto ng electrician ko is to thoroughly check the air intake system and fuel injectors to check kung malinis, takot lang cya kalasin yun intake manifold kasi plastic and pag kinalas, intake manifold gasket should be replaced. nag inquire ako sa honda Laguna kung pwede bumili ng gasket lang, bawal daw yun,tpos yun price nung gasket e 2k na agad, whereas meron din ako 97 sentra, ang mga gaskets around 300p lang, mapa anong engine gasket. But my question is, is it ok to go performing air/fuel system check to an electrician/mechanic? could you help me to find spareparts that I need for my honda at a reasonable price? or what else should I do before I take my car to the elecrtrician/Mechanic that I know? and, I installed racing filters with my engine a year ago, does it contribute to the jerking that I am experiencing right now? your suggestions will be really appreciated. thanks guys more power!!!

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[jick.cejoco]

Matibay ba itong mga to? Won't this crack in the long run?

I understand the Echo was the first VVTi equipped engine in the country. Any negative feedback on these plastic intake manifolds in your long term ownership?

Another thing about these new VVTi engines. I noticed they have only 1 auxiliary fan. Any overheating problems encountered with VVTi equipped cars in our hot country?

fenderbender,
plastics per se have different formulations, there are polyethylene, polypropylene, poly carbonate, polyvinyl chloride (pvc), polymer (the same material to make glocks), abs, chloropolyvinyl chloride, bakelite and some other plastics. your intake mainfold is made of polymer which is resistant to heat to some degree and resistant to warpage if installed right. composite materials have been widely used in cars to reduce the vehicle weight, resist corrosion, insulate from heat (so your intake air is not too hot causing detonation), and of course less expensive to manufacture. there is no need to worry about the "plastic" intake manifold.
as with only one fan in front of your condenser and radiator, there is absolutely no need to overcool your engine.
jick

[jick.cejoco]

fenderbender,
plastics per se have different formulations, there are polyethylene, polypropylene, poly carbonate, polyvinyl chloride (pvc), polymer (the same material to make glocks), abs, chloropolyvinyl chloride, bakelite and some other plastics. your intake mainfold is made of polymer which is resistant to heat to some degree and resistant to warpage if installed right. composite materials have been widely used in cars to reduce the vehicle weight, resist corrosion, insulate from heat (so your intake air is not too hot causing detonation), and of course less expensive to manufacture. there is no need to worry about the "plastic" intake manifold.
as with only one fan in front of your condenser and radiator, there is absolutely no need to overcool your engine.
jick

p.s.
as per the gasket, you can use rtv(room temperature vulcanizing) sealant that is oxygen sensor safe, just make sure the surfaces to be sealed are free of dirt and oil residue.

[ianmitsulancer]

i think it shouldnt pose as a problem. ang dadaan lang diyan is the filtered air to be combined with the combustion chamber and plastics of this kind should be resistant after being tested.

as i see it, this is one of the many ways of weight reduction considering that most compact C-Category sedans like the Altis as an example has exceeded 1 ton in curb weight already!