The_Veg
D'OH!
Anybody have a picture of one of these? I wonder if it'll fit in my GS. Living in the south, my engine gets pretty toasty too.
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BMW To Kill the Air Cooled Engine
- Thread starter coloktmGS
- Start date
Anybody have a picture of one of these? I wonder if it'll fit in my GS. Living in the south, my engine gets pretty toasty too.
lkchris
Active member
From ETK ...
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lkchris
Active member
Ah, but like my New Beetle TDI, it's a gross (and I mean gross) polluter.
My GL320CDI with Diesel Particulate Filter (but pre-AdBlue) doesn't smell, doesn't smoke, and doesn't even dust up the chrome exhaust extensions.
ka5ysy
2011 R1200RT
bikerfish1100
New member
care to explain your thinking on that one?
ironic, eh?
tinytrains
Still plays with trains.
I have owned a K75 for 21 years. Total cooling system maintenance: 2 gallons of coolant and 1 radiator fan (the fan wears it's self out spinning in the wind). It is clean as a whistle inside, and stays cool as a cucumber in LA traffic.
I wish my R1200R had a fan on the oil cooler.
Scott
I wish my R1200R had a fan on the oil cooler.
Scott
mpmarty
New member
Dissimilar metals suspended in a conductive medium such as water is a very poor design. Electrolysis ya know.
bikerfish1100
New member
Not water, coolant.
On a different note I found an article by Kevin Cameron, I believe a couple years ago, interesting. In it he pointed out how water cooling is actually lighter than air cooling. The weight of the coolant, hoses, and water pump is more than off-set by the thicker castings and fins needed for air cooling.
tinytrains
Still plays with trains.
This is true of iron block engines. With the exception of the water pump impeller, the entire cooling system on a K bike is aluminum. Head, cylinders, and radiator.
As I said, my 21 year old system looks like new inside.
MPMARTY; What kind of car do you drive?
bikerfish1100
New member
you need to take it out and blow dry it after water-cooling initiatives.
ka5ysy
2011 R1200RT
jasontdi
TDI Guru
(spelling correction)
You need a cam and lifter inspection. It's not the fuel.....trust me as a TDI Guru.
They are disintegrating at an alarming rate. Especially if you use the 5w30 Castrol garbage dealer oil.
Sorry for the side track...
Rinty
New member
Porsche was forced to introduce liquid cooling in its M96/01 engines, as it found it could not adequately cool four valve cylinder heads with air/oil. Porsche needed the new heads to achieve higher specific power outputs, and meet current and future emission standards.
One of the other reasons was to reduce noise.
And the new (996) cars were about 50 kg lighter than their (993) predecessors.
But the air cooled enthusiasts love to take shots at the water pumpers. Which is similar to one of the themes around here...
I've always understood that oil is an inferior fluid for transferring heat. I had a look at some heat transfer co-efficient tables for oil and water, and it's about 1 to 4. If I understand the tables correctly, oil also has less ability to hold heat.
But the resident physicists can correct me.
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It is true that equivalent volumes of oil does not carry as much heat as water. However, the system is the real figure of merit.
Oil can cool a head very well, it might will need a bit larger passages. Oil will not boil at any temperature you would want to operate at, water has been known to make stem pockets. There are also issues with water additives and corrosion. OIl will warm faster than water, and this is an advantage.
An oil cooling system can move as much heat as a water system, things need to be different sizes and pressures is all.
Rod
Oil can cool a head very well, it might will need a bit larger passages. Oil will not boil at any temperature you would want to operate at, water has been known to make stem pockets. There are also issues with water additives and corrosion. OIl will warm faster than water, and this is an advantage.
An oil cooling system can move as much heat as a water system, things need to be different sizes and pressures is all.
Rod
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