Originally Posted by tsk1979 (Post 1220378)

I will ask them to change the radiator itself. No flute no bamboo.

Originally Posted by tsk1979 (Post 1220600)

The pipe is also faulty. If it was not the coolant from the coolant reservoir would have vanished, and I would have filled in water and drove on.

Originally Posted by PAVAN KADAM (Post 1220606)

Thank god its a small problem. So when is your Safari coming back home.:)

Originally Posted by tsk1979 (Post 1220600)

The pipe is also faulty. If it was not the coolant from the coolant reservoir would have vanished, and I would have filled in water and drove on.

Originally Posted by dadu (Post 1217526)

@Adc, you summed it up well in your previous post but I would suggest, that you dont plug the pipe into the clamp, as Vikram mentioned it is clearly squeezing the pipe and hence the flow would also reduce.

Best way is to goto anearby showroom and check yourself if it actually comes fitted in the clamp or loose from factory, some of the clamps in the engine bay are not used et-all for eg just above the radiator one.

You never know, if someone proactively clamped the pipe into a wrong clamp for tanveer, it being free.

Originally Posted by condor (Post 1217576)

How much squeeze is a squeeze ?

Every non-rigid tube will have a little squeeze where it is secured / mounted. This will not affect the functioning of the tube : if there is a squeeze in one axis, there is a corresponding stretch in the perpendicular axis. Net flow internally will be the same.

Originally Posted by adc (Post 1217603)

Rephrasing and again seeing, the "squeezing" or "pinching" does seem a bit more on the images due to the thumb print on the pipe. May be the clip position is wrong, but it is not like really squeezing it, it is holding it tight with moderate pinch not severe.

Let all 2.2 owners check and lets see what the take is, will surely see what the new 2.2 vehicles has like once i am able to.

surely that too will check out, but just for engine start or stop it should not come out. will keep an eye on that pipe - sure that pipe is a "celebrity" by now.

Originally Posted by suman (Post 1220512)

And to think of the number of pages debated about the clip & the pipe:D

Originally Posted by tsk1979 (Post 1220600)

The pipe is also faulty. If it was not the coolant from the coolant reservoir would have vanished, and I would have filled in water and drove on.

Originally Posted by tsk1979 (Post 1220683)

Well I drove from Kalpa to N.Delhi without car overheating even once after filling in water :)
Apparently the water is gradually evaporating not sudden, as the leak is not at bottom, but somwhere around the battery.

Once I have the safari in my hands(next week I think? or maybe saturday) I can pen down the gory details.

Originally Posted by BlackPearl (Post 1220500)

Ok. I had the experience of old ambys and jeep where the radiator caps were lost most of the times and we used to top up with water every 2-3 weeks. The water did not evaporate that fast even though the caps were not there.

Originally Posted by bblost (Post 1220504)

The rate of evaporation depends on a lot of things.

Originally Posted by SS-Traveller (Post 1220901)

Old Ambys and Jeeps had a non-pressurised cooling system, whereas new cars have a pressurised cooling system - the amount of coolant/water is lesser as a result now, making the system (and the radiator) more compact.

Originally Posted by SS-Traveller (Post 1220901)

But the "water pump" (nowadays the "coolant pump") in a modern car is far more powerful than what was there in an Amby. So, with the engine running, the Amby/Jeep water pump kept the liquid circulating. But the new-generation car's coolant pump will make the coolant overflow out of an open filler hole, and almost all the coolant will be thrown out in a little while.

Originally Posted by dadu (Post 1221023)

The pressurised cooling system has nothing to do with the amount of coolant, (TRUE) amount of coolant is determined based on the volume required for circulation around the engine block and head along with the cabin heater system. (and the size of the radiator, therefore total volume of coolant reduces, to allow designers to use a thinner radiator and make a smaller engine bay)

Pressurized cooling system was devised to raise the boiling point of coolant by apprx 25 deg C vs non-pressurized, this is achieved by using the valve based pressure radiator cap. (again, true)

Again the water pump helps circulate the coolant but has no role to play in the overflow. The cooled coolant from the radiator is pumped around the engine block and head and then into the radiator, this is how it flows (true, but a higher flow rate allows the coolant to overflow from an open filler hole if the radiator cap is not in place - as I said, try this with a cold engine and rev up while the cap is removed. This loss of coolant has nothing to do with evaporation either).

The overflow is caused by another reason. When the pressure in the radiator builds up due to heating of the coolant the radiator cap acts as a vent and opens up(valve mechanism) to let the coolant flow into the coolant bottle and similary when it cools down, it sucks back the coolant. (true again)

Now when it heats up beyond a limit(overheating) it will throw up more coolant than the bottle can handle and in turn will overflow from the bottle also. (true again - overheating resulting in overflow from the bottle is because the boiling temp. of the coolant has been reached when it is in its unpressurized state, and the liquid boils out of the bottle itself - and the bottle is also overfilled - and green stains are seen around the bottle. But my comment is related to the questions as to why Tanveer's coolant disappeared so quickly due to evaporation. No boiling happened, so no green marks around seen overflow bottle. NO EVAPORATION TOOK PLACE EITHER.)

Hope this clarifies.

Originally Posted by SS-Traveller (Post 1221226)

Originally Posted by dadu
The pressurised cooling system has nothing to do with the amount of coolant, (TRUE) amount of coolant is determined based on the volume required for circulation around the engine block and head along with the cabin heater system. (and the size of the radiator, therefore total volume of coolant reduces, to allow designers to use a thinner radiator and make a smaller engine bay)

Originally Posted by anupmathur (Post 1221275)

That means if they make a 50 or 100 bar pressurized cooling system, the size of the radiator could be made about the size of a credit card?! :Shockked:

Originally Posted by Samurai (Post 1221295)

Only if the designers are idiots. The radiator's job is to cool the liquid, it has to be big enough to radiate the heat through the fins. Credit card size won't do it.