‘Radiator Thermo Valve’ (RTV). Maruti 800

[mahilaljayanath]

A ‘Radiator Thermo Valve’ (RTV) is not installed on my Maruti 800 (1996). i'm planning to install one RTV soon.

Could someone show me the location where the RTV is located?

 

[Varun560061]

Do you need the thermostat valve rite, it is located just next to the hose which connects the radiator, I will try to post the pic..

 

[mahilaljayanath]

Thank you for quick reply. I appreciate if you could post some pictures.

 

[Varun560061]

Is your car MPFI / Carb. please specify the model..type 1 / 2.

 

[mahilaljayanath]

It's a carb model (1996).

 

[jarpickle]

Here are the pictures you need.

Hope these were helpful.

 

[mahilaljayanath]

This is exactly what I was looking for. Thank you so much for the pictures.

 

[mahilaljayanath]

The radiator fan switches on when the temperature gauge is at about 1/4 of the scale. (do not go beyond that position). I feel the gauge is faulty. Can the sensor (close to the thermostat valve) or the gauge on the dash, the culprit???????

 

[Varun560061]

May be its a faulty gauge.. but does it come to half mark after driving for around 15-20 kms ?

 

[jarpickle]

There doesn't seem to be anything wrong.

Check the pipes for leaks and keep an eye on the coolant levels.

It would be a good idea to change the radiator cap if you have not recently.They are cheap to replace.

Like Varun said if the gauge doesn't rise after driving for a long time can be more than 20kms sometimes too.Then it can be a faulty gauge.

Also it could be a part called the thermoswitch.

I'd suggest you drive non stop for an hour with sufficient coolant in your radiator and overflow reservoir and see what happens before changing anything.

 

[jarpickle]

After driving non stop for an hour.The needle should be at a bit less than the half mark.

If this is achieved then everything is working like it should.

If it is going over the half mark,then the cooling system needs to be checked accordingly.

 

[mahilaljayanath]

The needle reaches 1/3 position after 10 minutes run and remain at 1/3 position even I drive more than 20km.

The radiator fan is on, when the needle at 1/4 position and remains on beyond that point.

Radiator cap is a new one and the radiator fan thermo switch is almost new (Nissan, japan)

Water pump cleaned recently and verified no leak from water pump.

No change in Radiator water level and reservoir water level when I drive non-stop for more than 1 hour.

What I can understand from your comments is that there is nothing wrong with the cooling system now but something wrong with the temperature gauge.

I can easily replace the sensor (small cylindrical part) attached to the wire of the gauge but I'm not sure the gauge on the dash board is available.

 

[jarpickle]

You should be able to find that gauge at an MGP outlet.
You can find the details here :
Maruti Sri Lanka - Count on us

This is the picture of the gauge circuit.Hope this helps.

 

[mahilaljayanath]

I fixed a new Water temperature gauge and the needle of temperature gauge is at half way mark now. Problem now solved.

Thank you all for your valuable comments/pictures/etc.

 

[jarpickle]

You're welcome@mahilaljayanath.

Glad I could help.