Coolant that doubles the boiling temp?

[FJRider]

Why not just drain the coolant, remove the radiator and run the with air cooled.

As a general rule ... liquid cooled engines don't have engine fins to aid cooling ... and any they did have, was literally for decoration ...

[pete376403]

no worries.

. LET THE ENGINE GO ABOVE 100 DEG C, THE ENGINE CAN TAKE IT AIR COOLED ENGINES AEROPLANES/MOTORBIKES RUN AT 250 DEG C ALL THE TIME - IT'S THE WATER IN THE COOLING SYSTEM THAT IS THE WEAKNESS. ONCE A WATER BASED COOLING SYSTEM REACHES JUST OVER 100 DEG C AND BOILS THE WATER STOPS TRANSFERING HEAT TO THE RADIATOR.

Where does this load of crap come from? All cooling systems are pressurised which raises the boing point.



http://www.engineeringtoolbox.com/bo...ter-d_926.html

[scumdog]

Where does this load of crap come from? All cooling systems are pressurised which raises the boing point.



http://www.engineeringtoolbox.com/bo...ter-d_926.html

'boing'

[pete-blen]

the other point about running a cooling system under preasure..
the preasure aids heat transfur due to surface contact force...

a interesting fact...
I worked at Dominion salt..
in the VP plant we boiled water at 42c
by running the plant under 4 hegs of vacume..
( boiled..infact it turned it to steam at 42c)

So just a thought that came to mined..

Imagine what a unpreasureised system would /could / might
do at a 1000 or 2000 feet above sea level...

[bikaholic]

It is interseting that the OP started this thread and a few days later he started a thread about the price of a replacement burnt out radiator cooling fan.

[FJRider]

Imagine what a unpreasureised system would /could / might
do at a 1000 or 2000 feet above sea level...

It is known by climbers ... how hard it is to "boil" water on Everest ... 28,000 ft

[bikaholic]

It is known by climbers ... how hard it is to "boil" water on Everest ... 28,000 ft

just take up some anhydrous ammonia, you wont even need a match.

[quickbuck]

It is known by climbers ... how hard it is to "boil" water on Everest ... 28,000 ft

Well, i think hte boiling is the easy bit, it is actually getting the food hot that is tricky, is it not?
Could be wrong, often am.

[bikaholic]

Well, i think hte boiling is the easy bit, it is actually getting the food hot that is tricky, is it not?
Could be wrong, often am.

yep, that would be the reason that there is no Maccas up there.

[quickbuck]

yep, that would be the reason that there is no Maccas up there.

Since when has Maccas been hot??

Back to topic (so we don't get PD'd):
Pressure has a lot to do with boiling points, hence the reason to run the correct cap on your bike.... it is as important as running a coolant additive in the system.

The Motul stuff I picked up the other day (for race use) actually runs at a 5% concerntration in the water, so the $40 500ml bottle actually works out to be good value in my opinion.

[bikaholic]

Since when has Maccas been hot??

Back to topic (so we don't get PD'd):
Pressure has a lot to do with boiling points, hence the reason to run the correct cap on your bike.... it is as important as running a coolant additive in the system.

The Motul stuff I picked up the other day (for race use) actually runs at a 5% concerntration in the water, so the $40 500ml bottle actually works out to be good value in my opinion.

correct, additives raise the boiling point, lowers the freezing point, and adds corrision inhibitors, however not every additive provides all three.

[FJRider]

correct, additives raise the boiling point, lowers the freezing point, and adds corrision inhibitors, however not every additive provides all three.

Which is why a regular flush and replacement of the coolant is usually reccomended ...