The Great Thermostat Debate [Merged]

[mazdamazda]

ask ko lang din...ano ang difference/disadvantage kapag mas luma ang model ng kotse?
i have a Gen 1 crv kasi na nagoverheat last week, tinanggal din ng mechanic yun thermostat.

meron bang masisira na ibang engine components or ang disadvantage lang is matagal ma-reach ang normal operatin temp?

you will not even reach normal operating temperature when the temperature is cold (raining, nightime, ber months).

you'll prematurely wear out parts like pistons, sleeves, etc

lancevo8,

care to expound why the thermostat isn't needed for older cars?

[Diesel_Torque]

ask ko lang din...ano ang difference/disadvantage kapag mas luma ang model ng kotse?
i have a Gen 1 crv kasi na nagoverheat last week, tinanggal din ng mechanic yun thermostat.

meron bang masisira na ibang engine components or ang disadvantage lang is matagal ma-reach ang normal operatin temp?

Sir kya po kyo nag-overheat is nag-stuckup na ung Thermostat nyo hndi na sya nag-fully open i think, which is basted na, may lifespan din talaga ung mga Thermostat same din ng thermister ung nag-sswitch on ng Radiator Fan. alin dun sa 2 pag basted na mag-ooverheat ka talaga. Anyway kailangan nyo po talaga mag-palit at ibalik ung thermostat nyo kc dun sa temp nagddepend ung ECU nyo pra sa idling nung makina or else some internal parts will also damage too due too sudden changes of temperatures lalo na sa mga long drives and long Hour traffic. sa mga luma na makina naman kailangan pa rin ung thermostat kya lang naman nag-ooverheat pag luma is marami na rin sumisingaw sa mga internal parts, pang samantala lang na solusyon talaga ung tangalin ung Thermostat.

Ang masasabi ko lang sa mga Mekaniko na nagsasabi na hndi na kailangan ung Thermostat is magbasa-basa sila at mag-seminar or mag-training.
masyadong cla marunong hndi nila alam napag-iiwanan na cla tsk-tsk-tsk peace.

[vinj]

Just get a new one... Thermostat is relatively affordable.

[blkcoffee]

lancevo8,
right b4 the mechanic removed the thermostat, he checked all others first...the pump, radiator, hoses, radiator cap. He even had this apparatus placed in lieu of the radiator cap (i don't know what it does). All was in proper condition. That's when he thought that the thermostat maybe the culprit. It may have not opened when it was supposed to.
Anyways, ive decided to reinstall a new thermostat as per mr. mazdamazda's explanation.
thanks

[yebo]

and in fact removing the thermostats cuts the cooling capacity of your radiator in half! the thermostat regulates the flow of coolant between a by-pass port and the radiator. if the engine is cold then it is closed and the coolant goes to the by-pass. at maximum operating temperature it is fully open and 100% of the the coolant flow goes to the radiator. at temperatures in between "cold" and "optimum" it regulates the flow, dividing the flow of coolant between the by-pass and the radiator so that your engine runs at the most efficient temperature without overheating. if you remove the thermostats then the coolant flow is permanently divided between the by-pass port and the radiator, in effect cutting the cooling efficiency by 50%!

siguro stuck closed na yung thermostats mo kaya nago-overheat. nung tinanggal nya yung thermostat of course that puts back 50% of the cooling capacity kaya hindi na nago-overheat. but i guarantee you that if you get stuck in traffic on a hot summer day when you need 100% cooling efficiency from your radiator your engine will overheat!

[tarugs24]

Good decision bro, bottom line is di naman ilalagay yan ng car manufacturer kung di kailangan eh...

[KALAMPAG]

tama si tarugs... a machine is a machine... lahat ng components may purpose... dont settle sa mga remedy lang... dapat problem solved... at least bawas alala...

[thephantom]

add ko lang. it was placed there for a reason. old school thinking ang tinatanggal ang thermostat para ma-prevent ang overheating. an engine needs to achieve a certain temperature to give off maximum performance. it may just do more harm than good if it is removed.

[speedyfix]

if ok lang pala wala from the start sana di nalang linagay sa casa... cost cutting pa sila...

mura lang naman thermostat kaya replace it when possible, dun lang sa no choice dapat gawin yung pagtangal pero it should be remedied din agad

[fierari]

tama kayo pang old skul yan pag luma na kasi makina mo barado na ng mga mineral deposit ang water tunnel sa engine block kaya kelangan na talaga alisin for older engines kung nag ooverheat na sya kahit bago pa ang thermo stat.

[mazerom]

i hear from a lot of mechanics that thermostat is not needed or necessary in our type of tropical climate.actually, before i have problem with my car for overheating...lot of mechanics had wrong diagnosis so i opted to go to honda center and they found out that ther's a problem with the thermo-time switch, thermostat and radiator.so i bought the switch and thermostat but an outside mechanic advised me not to install the thermostat because it will just add up to overheating...
any comments???

[umzzzzz]

there's a similar thread i think...pero as from what i've read somwhere in the boards, mas maganda kapag may thermostat pa rin eventhough we're on a tropical country. it helps keep your car in the right temperature during cold starups...ata. also...there's no reason that a new thermostat will cause overheating; only used and old thermostats can do that ...kasi nagsstuck up yan over time. corrosion is inevitable kahit sabihin ng car manufacturers na anti corrosive materials ang ginamit sa part na yun.

[yebo]

yup do a search meron na thread about that.

but to make it easier for you, yes a thermostat is necessary. those mechanics who say that it isn't do not know what they are talking about. having a properly functioning thermostat in your engine will do the ff:

1. shorter warm up times. the shorter the warm up the earlier the engine will reach its efficient temperature. also shorter warm ups lessen engine wear. the reverse is true also, without a thermostat the warm up times get longer and leads to more engine wear due to the engine parts not being in its optimum operating temperature.

2. a thermostat regulates the flow of cooling water between by-pass (meaning the coolant does not pass through the radiator) and the radiator, keeping the optimum operating temperature for the engine at all times. removing the thermostat will permanently divide the flow of water between radiator and by-pass. that means the cooling efficiency of your radiator is actually cut by 50% and this could in fact lead to engine overheat.

[acenie]

yup do a search meron na thread about that.

but to make it easier for you, yes a thermostat is necessary. those mechanics who say that it isn't do not know what they are talking about. having a properly functioning thermostat in your engine will do the ff:

1. shorter warm up times. the shorter the warm up the earlier the engine will reach its efficient temperature. also shorter warm ups lessen engine wear. the reverse is true also, without a thermostat the warm up times get longer and leads to more engine wear due to the engine parts not being in its optimum operating temperature.

2. a thermostat regulates the flow of cooling water between by-pass (meaning the coolant does not pass through the radiator) and the radiator, keeping the optimum operating temperature for the engine at all times. removing the thermostat will permanently divide the flow of water between radiator and by-pass. that means the cooling efficiency of your radiator is actually cut by 50% and this could in fact lead to engine overheat.

yah that's true! When my VAN before I installed the Thermostat, in a morning start needs more time to get the normal temp. that was 1/4 of the guage, and when in traffic was above the center,
But then after I installed the morning start, mga after 5 mins. the temp. already at the normal, and when in traffic always at the center.
So all vehicles needs thermostat so that the temp. of the engine is in constant...

it is ok to used only pure distilled water without coolant? But my observation in this I will top up distilled water every 2 weeks in the reservoir. is this normal..

[morrissey_05]

boss otep,


eto na po. very interesting and heated discussion.

http://www.kotse.com/forums/index.ph...&hl=thermostat

[XTO]

it's there to restrict the flow of coolant from the engine block to

the radiator during cold starting and while it's beyond "normal"

operating temp. it will permanently open once the coolant heats

up to the extent that almost boil. in this stage it will allows coolant

to flow to the radiator for cooling. removing the thermostat may be

useful for those public utility vehicles which normally runs for almost

a day without shutting off.

[vinj]

boss otep,


eto na po. very interesting and heated discussion.

http://www.kotse.com/forums/index.ph...&hl=thermostat

classic :laughbounce:

[alwayz_yummy]

kasi tuloy-tuloy na ung ikot ng tubig...yup you just need a thermostat na properly working...it stucks up in time to the point na di na kaya itulak ng pressure kaya it fails...

[t2erns]

Operating without a thermostat causes other problems.
These are: longer engine warmup time, unreliable warmup performance, increased exhaust emissions and crankcase condensation. This condensation can result in sludge formation.

[mark_t]

i hear from a lot of mechanics that thermostat is not needed or necessary in our type of tropical climate.actually, before i have problem with my car for overheating...lot of mechanics had wrong diagnosis so i opted to go to honda center and they found out that ther's a problem with the thermo-time switch, thermostat and radiator.so i bought the switch and thermostat but an outside mechanic advised me not to install the thermostat because it will just add up to overheating...
any comments???

Are they really mechanics? Who certified them?

If you are overheating with a good thermostat then what is the condition
of your cooling system? Do you flush it clean every 16 months? Do you
think it may be resticted due to rust? Do you use a proper coolant?