radiator cap - from 1.1 to .9 masama ba ito?

[XTO]

i recently bought a genuine radiator cap for my mitsubishi outlander. Na feel ko kasi baka worn-out na yung rubber nito.

Kaso, ang nabili ko is .9.

Question, Makakasama ba sa makina kung .9 lang ginamit ko instead of 1.1?

Please enlighten me.

Thank you in advance.

bro, ano na balita dito sa nabili mong genuine radiator cap? like i said, kung di na mapapalitan you can use it but observe carefully now if you have doubt then might as well look for the 1.1 bar. yes that with more pressure, your engine's cooling system can withstand more heat. however, with more pressure, you put more wear and tear on the engine cooling components. na inquire mo na rin ba sa casa?

1.) 1.1 = boiling point is 121-123 C
2.) 0.9 = boiling point is 116-118 C

like nickel68 pointed out maliit na difference lang yan, depende pa kung ilang percent ang coolant mo, naka 1.1 ka nga but only with 25% coolant so daig pa yan if naka 0.9 ka but with 50-75 or even 100% coolant ang importante walang leak on your cap because that would mean very useless yan at back to zero pressure build-up niya just the same with mga pampaseherong jeepneys.

[aamd]

As to update this thread (thanks XTO for reminding me)

It seems na yung water leak came from the 2 T-connectors connecting the vaporizer and the radiator line (i have an LPG kit installed) that greenfuel installed for my car. This T-connectors were replaced accordingly. Thank you greenfuel.

After reading this thread yesterday, sinubukan kong ibalik ang dating 1.1 na radiator cap and today it worked as it was expected. Normal lang. No overheating or loss of water whatsoever.

In using the .9 radiator cap for 1 month, wala akong makitang difference with regard to performance parang pareho lang with the 1.1

For now, i am using the old 1.1. Refilled the radiator with water and it seems puno pa ito. So no water was added.

My coolant mixture is 1liter of coolant is to 3liters of distilled water.

I hope i did not harm my car cooling system....

To everybody, thank you for posting in this thread. Very informative indeed.

[v6dreamer]

As to update this thread (thanks XTO for reminding me)

It seems na yung water leak came from the 2 T-connectors connecting the vaporizer and the radiator line (i have an LPG kit installed) that greenfuel installed for my car. This T-connectors were replaced accordingly. Thank you greenfuel.

After reading this thread yesterday, sinubukan kong ibalik ang dating 1.1 na radiator cap and today it worked as it was expected. Normal lang. No overheating or loss of water whatsoever.

In using the .9 radiator cap for 1 month, wala akong makitang difference with regard to performance parang pareho lang with the 1.1

For now, i am using the old 1.1. Refilled the radiator with water and it seems puno pa ito. So no water was added.

My coolant mixture is 1liter of coolant is to 3liters of distilled water.

I hope i did not harm my car cooling system....

To everybody, thank you for posting in this thread. Very informative indeed.

P.s
You forgat that coolant mixture in radiator is 50/50. 50% Coolant and 50% distilled water.

[nickel68]

Bro.

Yung 16 Lbs = 16 PSI = 1.1 kg/cm2

[speedyfix]

all cooling systems are pressurized in some way or another. if not by a regular radiator cap, then with a cover sa reservoir that is capable of sealing the system properly (most new mercedes and bmw's)

[nickel68]

Bro.

My comment sa radiator na walang cap.
**Kung walang radiator cap, meron yan Expansion Tank dun nio rin makikita yung radiator cap.

The radiator cap serves two purpose:

• as Pressure Relief - it releases the pressure of the cooling at its rated pressure (tolerance +/- 5% of the rated pressure), when the coolant gets heated this will expand up to the rated pressure and then release the vapor to the reservoir.
• as Vacuum Relief - makikita nio sa ilalim sa gitna meron maliit na plate. When you stop running your engine the cooling system will slowly cool down to ambient condition, dito sa loob ng cooling system magkakaroon ng contraction (kanina nag expand kasi mainit yung coolant) yung vacuum relief ay unti-unti mag open until masipsip na nia yung water sa reservoir pabalik sa radiator.

[EVO-V]

Bro.

My comment sa radiator na walang cap.
**Kung walang radiator cap, meron yan Expansion Tank dun nio rin makikita yung radiator cap.

The radiator cap serves two purpose:

• as Pressure Relief - it releases the pressure of the cooling at its rated pressure (tolerance +/- 5% of the rated pressure), when the coolant gets heated this will expand up to the rated pressure and then release the vapor to the reservoir.
• as Vacuum Relief - makikita nio sa ilalim sa gitna meron maliit na plate. When you stop running your engine the cooling system will slowly cool down to ambient condition, dito sa loob ng cooling system magkakaroon ng contraction (kanina nag expand kasi mainit yung coolant) yung vacuum relief ay unti-unti mag open until masipsip na nia yung water sa reservoir pabalik sa radiator.

It is actually a pressure cap first before anything else. Elevating the pressure of the cooling loop by one atmosphere raises the boiling point of the coolant.