look up coolant capacity in Haynes manual.
drain coolant.
flush system
fill system with antifreeze to half the total capacity
fill system completely with water.
bleed system
run engine
top up with water.
drain coolant.
flush system
fill system with antifreeze to half the total capacity
fill system completely with water.
bleed system
run engine
top up with water.
4 cylinder Series capacity is 8.1 Litres
6 cylinder 11.2 Litres
doozil is 7.8 Litres.
6 cylinder 11.2 Litres
doozil is 7.8 Litres.
Tinribs
New Member
Make sure that you DON'T get your mixture MORE than 50% antifreeze! Anymore than this and most types of antifreezes freezing point begins to rise again, so I'm told. I'm sure the instruction on the can will point this out. I usually mix mine to 33% antifreeze which protects down to -18oC which is good enough where I live an still gives enough protection should I need to top up with plain water.
Tinribs
New Member
Aye, stick to 50/50 and follow the instructions on the bottle.
Antifreeze/Coolant, Larry Carley, Counterman, May 1997
Antifreeze/Coolant, Larry Carley, Counterman, May 1997
doobie
Active Member
does anyone use de-ionised water in their rads?
at my work we were told by the chemists that our regular fresh water supply caused too much deposit build up in the engine coolers so we now use de-ionised water for all the doosil engines, most of them have plate coolers with cooling medium/sea water but there is a couple with rad's and fans. not had any bother with ****e in the systems since!
the worst thing is the fresh water we used for the engines is the same water we all drink/cook/clean in!!!
at my work we were told by the chemists that our regular fresh water supply caused too much deposit build up in the engine coolers so we now use de-ionised water for all the doosil engines, most of them have plate coolers with cooling medium/sea water but there is a couple with rad's and fans. not had any bother with ****e in the systems since!
the worst thing is the fresh water we used for the engines is the same water we all drink/cook/clean in!!!
I just KNOW I'm going to get in bother from Slob for this .. I just know it!
But what the Hell?
The problem with antifreeze is not so much the freezing.
It is because antifreeze (ethylene glycol - the real stuff) is not nearly as good as WATER for carrying HEAT energy. Alcohol (meths, methanol etc) too.
For instance,
to raise the temperature of a litre (or kilogram) or water by one degree C requires you to add 4,200 Joules of heat ebergy to the water. Just think 4,200.
To do the same to a kilo of alcohol needs only 2,500 Joules.
Glycol I can't find the figures for but I think it will be about HALF that of plain water. So .... if the engine heats up a lot, it will heat up about twice as fast on alochol or neat glycol as it will using plain water, AND it will take the coolant twice as long to carry the heat away as it would using plain water.
Plain water has an exceptionally high specific heat capacity. It is in a class of its own, which is very handy for us who use internal combustion engines that are liquid-cooled.
In the arctic, and in piston engine planes that go to high altitudes, they can use neat glycol coolants because it is so cold outside (-40C/F) that the glycol will cool the thing fine, as in arctic vehicles.
You might be surprised that the Specific heat capacity of metals is very low compared to water, weight for weight about one tenth! A kilo of lead needs 140 Joules compared to 4,200 for water, copper is about 380, and steel or cast iron in the same league. It's why air-cooled engines heat up so very quickly, but a liquid cooled one takes so long.
Sorry Slob .....
CharlesY
But what the Hell?
The problem with antifreeze is not so much the freezing.
It is because antifreeze (ethylene glycol - the real stuff) is not nearly as good as WATER for carrying HEAT energy. Alcohol (meths, methanol etc) too.
For instance,
to raise the temperature of a litre (or kilogram) or water by one degree C requires you to add 4,200 Joules of heat ebergy to the water. Just think 4,200.
To do the same to a kilo of alcohol needs only 2,500 Joules.
Glycol I can't find the figures for but I think it will be about HALF that of plain water. So .... if the engine heats up a lot, it will heat up about twice as fast on alochol or neat glycol as it will using plain water, AND it will take the coolant twice as long to carry the heat away as it would using plain water.
Plain water has an exceptionally high specific heat capacity. It is in a class of its own, which is very handy for us who use internal combustion engines that are liquid-cooled.
In the arctic, and in piston engine planes that go to high altitudes, they can use neat glycol coolants because it is so cold outside (-40C/F) that the glycol will cool the thing fine, as in arctic vehicles.
You might be surprised that the Specific heat capacity of metals is very low compared to water, weight for weight about one tenth! A kilo of lead needs 140 Joules compared to 4,200 for water, copper is about 380, and steel or cast iron in the same league. It's why air-cooled engines heat up so very quickly, but a liquid cooled one takes so long.
Sorry Slob .....
CharlesY
it is - yu can use refridgerator defrost water too.
dont forget to ensure yo heater valve is open
