Rad Fan airflow direction

[box_type]

mga sir nagpapalit ako ng radiator fan recently and i noticed that the direction of the airflow of the fan was towards the engine, is this right? i thought it's supposed to be towards the radiator fins? tama ba o mali ang pagkaka-kabit ng rad fan ko? one more thing, pag umandar naman sya, few seconds (5-6 sec.) lang andar nya tapos hinto agad?..help!

[OTEP]

The engine driven fan (yung may fanbelt) is supposed to drive air backwards. It will suck the air from behind the radiator.

For electric fans mounted in front of the radiator, it is supposed to force air into it (and the a/c condenser).

Typical rule of the thumb is airflow goes from the front of the vehicle going to the rear.

[acenie]

yah! that's true!
Towards the Engine, because if the vehicle moves, the air from the front grille moves In- the radiator suck by the FAN to Engine..

[box_type]

thanks sir Otep for the assuring answer! and what about my second question, ganon po ba talaga dapat takbo nya? only for a few seconds then hinto agad?

[XTO]

Yes, it(a.k.a aux fan) sucks the air from outside. It passes thru the

radiator, therefore it helps lower the coolant temp inside the radiator.

As per the fan connected to the engine, it's also designed to suck

outside air inward to cools down the engine.

[XTO]

what about my second question, ganon po ba talaga dapat takbo nya? only for a few seconds then hinto agad?

It should be sychronized with the a/c compressor. As a/c compressor

increased the load of the engine, it really needs additional cooling help

from the aux fan.

[istan]

Thats' right, ON sya sandali then OFF na. Helps keep the engine at normal temp that is if electric ang fan mo.
Pag umiinit na yun engine, On sya, then pag bumababa na temps...OFF na sya.

Belt driven fans are on if the engine is running...ika nga..belt.

[alwayz_yummy]

kaya sandali lang din nabubuhay kung walang aircon kasi connected siya sa thermo-switch located sa radiator.

much better set-up na yon kaysa sa rekta(alwayz-on on "on"-position) easiy on the carbon brush)

[ineedmorehp]

i changed from stock airbox to SRI - when traffic syempre the aux fan/rad fan heats the sri as well. any suggestion to avoid heating the SRI? Well of course to change it back to stock airbox is another solution... May mga DIY ba dyan? thanks.

[alwayz_yummy]

coveran mo ng heatshield ung sides ng airfilter mo facing the engine.

[ineedmorehp]

coveran mo ng heatshield ung sides ng airfilter mo facing the engine.

Heatshield? San nakakabili? Eto ba sir yung parang insulator ng bubong?

[wool]

heatshield, may nabibili ba nito or pinapagawa lang. Ano other effects kapag mainit yun hangin na pumapasok sa airfilter mo?

[sirmykel]

papasok po yung aux fan
tapos yung rad fan tingin ko palabas? saliwaan kasi yung saken eh kaya
pag umandar ung rad fan (electric) sa ilalim ung buga ng init eh

[wool]

how about DIY hood insulation using dualside roof insulator. I am guessing kapag may hood insulator ka maslalong tataas yun engine bay heat.

[BlueBimmer]

iba ata ang heatshield na sinasabi ni AY, meron mga aftermarket cone filters with integrated heatshield..un ata sinasabi nya

[alwayz_yummy]

all front mounted radiator and condenser fans are directed towards the engine.. kaya parang mainit sa ilalim kasi po open dun, at yung hangin dun pupunta sa baba-->may takip noh!

lalo na sa liteace ko, i put insulations sa cover(aba mahirap na maluto ***** ko noh!) ang init ng makina ko directed sa baba lahat, kaya pg lalabas ko, ramdam mo init ng hangin when you're outside.... (grabe init ng turbo-diesel ha, than gasoline engine)

kaya i want a body lift on my lite because of heat dissipation din-->magkakaroon ng bigger gap from the sub-frame to the body-->daluyan ng air..but i worry baka masyado naman dudumi engine ko--hirap pa naman pa-engine wash!