Oil and water
07-31-2006, 01:08 AM
#1
Guest
Posts: n/a
Oil and water
Just something I was mulling over this weekend.
If both components pass over/through the same material (engine) is it not
correct to assume that both should register the same temperature. If not
why not.
Or are both monitored at different stages of flow.
dj
oil temp on cool day (15/20c) = 80C
while water = 90C
If both components pass over/through the same material (engine) is it not
correct to assume that both should register the same temperature. If not
why not.
Or are both monitored at different stages of flow.
dj
oil temp on cool day (15/20c) = 80C
while water = 90C
07-31-2006, 02:44 AM
#2
Guest
Posts: n/a
Re: Oil and water
In message <DeidnRKLD595AFDZnZ2dnUVZ8qqdnZ2d@bt.com>
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
> Just something I was mulling over this weekend.
>
> If both components pass over/through the same material (engine) is it not
> correct to assume that both should register the same temperature. If not
> why not.
>
> Or are both monitored at different stages of flow.
>
> dj
> oil temp on cool day (15/20c) = 80C
> while water = 90C
The water is there for the specific purpose of removing excess heat from
the engine. For this reason it passes as close as possible to the
sources of the greatest heat - around the combustion chambers, the
cylinder head and cylinder bores. The oil has the primary purpose of
lubricating the moving parts of the engine - in particular, the
crankshaft bearings. Some oil does go to the head, to lubricate the
valve gear and some is sprayed onto the cylinder walls but not,
necessarily, close to the heat sources, and not in vast quantities.
--
Peter Bell - peter@bellfamily.org.uk
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
> Just something I was mulling over this weekend.
>
> If both components pass over/through the same material (engine) is it not
> correct to assume that both should register the same temperature. If not
> why not.
>
> Or are both monitored at different stages of flow.
>
> dj
> oil temp on cool day (15/20c) = 80C
> while water = 90C
The water is there for the specific purpose of removing excess heat from
the engine. For this reason it passes as close as possible to the
sources of the greatest heat - around the combustion chambers, the
cylinder head and cylinder bores. The oil has the primary purpose of
lubricating the moving parts of the engine - in particular, the
crankshaft bearings. Some oil does go to the head, to lubricate the
valve gear and some is sprayed onto the cylinder walls but not,
necessarily, close to the heat sources, and not in vast quantities.
--
Peter Bell - peter@bellfamily.org.uk
07-31-2006, 02:44 AM
#3
Guest
Posts: n/a
Re: Oil and water
In message <DeidnRKLD595AFDZnZ2dnUVZ8qqdnZ2d@bt.com>
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
> Just something I was mulling over this weekend.
>
> If both components pass over/through the same material (engine) is it not
> correct to assume that both should register the same temperature. If not
> why not.
>
> Or are both monitored at different stages of flow.
>
> dj
> oil temp on cool day (15/20c) = 80C
> while water = 90C
The water is there for the specific purpose of removing excess heat from
the engine. For this reason it passes as close as possible to the
sources of the greatest heat - around the combustion chambers, the
cylinder head and cylinder bores. The oil has the primary purpose of
lubricating the moving parts of the engine - in particular, the
crankshaft bearings. Some oil does go to the head, to lubricate the
valve gear and some is sprayed onto the cylinder walls but not,
necessarily, close to the heat sources, and not in vast quantities.
--
Peter Bell - peter@bellfamily.org.uk
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
> Just something I was mulling over this weekend.
>
> If both components pass over/through the same material (engine) is it not
> correct to assume that both should register the same temperature. If not
> why not.
>
> Or are both monitored at different stages of flow.
>
> dj
> oil temp on cool day (15/20c) = 80C
> while water = 90C
The water is there for the specific purpose of removing excess heat from
the engine. For this reason it passes as close as possible to the
sources of the greatest heat - around the combustion chambers, the
cylinder head and cylinder bores. The oil has the primary purpose of
lubricating the moving parts of the engine - in particular, the
crankshaft bearings. Some oil does go to the head, to lubricate the
valve gear and some is sprayed onto the cylinder walls but not,
necessarily, close to the heat sources, and not in vast quantities.
--
Peter Bell - peter@bellfamily.org.uk
07-31-2006, 02:44 AM
#4
Guest
Posts: n/a
Re: Oil and water
In message <DeidnRKLD595AFDZnZ2dnUVZ8qqdnZ2d@bt.com>
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
> Just something I was mulling over this weekend.
>
> If both components pass over/through the same material (engine) is it not
> correct to assume that both should register the same temperature. If not
> why not.
>
> Or are both monitored at different stages of flow.
>
> dj
> oil temp on cool day (15/20c) = 80C
> while water = 90C
The water is there for the specific purpose of removing excess heat from
the engine. For this reason it passes as close as possible to the
sources of the greatest heat - around the combustion chambers, the
cylinder head and cylinder bores. The oil has the primary purpose of
lubricating the moving parts of the engine - in particular, the
crankshaft bearings. Some oil does go to the head, to lubricate the
valve gear and some is sprayed onto the cylinder walls but not,
necessarily, close to the heat sources, and not in vast quantities.
--
Peter Bell - peter@bellfamily.org.uk
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
> Just something I was mulling over this weekend.
>
> If both components pass over/through the same material (engine) is it not
> correct to assume that both should register the same temperature. If not
> why not.
>
> Or are both monitored at different stages of flow.
>
> dj
> oil temp on cool day (15/20c) = 80C
> while water = 90C
The water is there for the specific purpose of removing excess heat from
the engine. For this reason it passes as close as possible to the
sources of the greatest heat - around the combustion chambers, the
cylinder head and cylinder bores. The oil has the primary purpose of
lubricating the moving parts of the engine - in particular, the
crankshaft bearings. Some oil does go to the head, to lubricate the
valve gear and some is sprayed onto the cylinder walls but not,
necessarily, close to the heat sources, and not in vast quantities.
--
Peter Bell - peter@bellfamily.org.uk
07-31-2006, 02:44 AM
#5
Guest
Posts: n/a
Re: Oil and water
In message <DeidnRKLD595AFDZnZ2dnUVZ8qqdnZ2d@bt.com>
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
> Just something I was mulling over this weekend.
>
> If both components pass over/through the same material (engine) is it not
> correct to assume that both should register the same temperature. If not
> why not.
>
> Or are both monitored at different stages of flow.
>
> dj
> oil temp on cool day (15/20c) = 80C
> while water = 90C
The water is there for the specific purpose of removing excess heat from
the engine. For this reason it passes as close as possible to the
sources of the greatest heat - around the combustion chambers, the
cylinder head and cylinder bores. The oil has the primary purpose of
lubricating the moving parts of the engine - in particular, the
crankshaft bearings. Some oil does go to the head, to lubricate the
valve gear and some is sprayed onto the cylinder walls but not,
necessarily, close to the heat sources, and not in vast quantities.
--
Peter Bell - peter@bellfamily.org.uk
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
> Just something I was mulling over this weekend.
>
> If both components pass over/through the same material (engine) is it not
> correct to assume that both should register the same temperature. If not
> why not.
>
> Or are both monitored at different stages of flow.
>
> dj
> oil temp on cool day (15/20c) = 80C
> while water = 90C
The water is there for the specific purpose of removing excess heat from
the engine. For this reason it passes as close as possible to the
sources of the greatest heat - around the combustion chambers, the
cylinder head and cylinder bores. The oil has the primary purpose of
lubricating the moving parts of the engine - in particular, the
crankshaft bearings. Some oil does go to the head, to lubricate the
valve gear and some is sprayed onto the cylinder walls but not,
necessarily, close to the heat sources, and not in vast quantities.
--
Peter Bell - peter@bellfamily.org.uk
07-31-2006, 12:14 PM
#6
Guest
Posts: n/a
Re: Oil and water
"Peter Bell" <peter@invalid.org.uk> wrote in message
news:3519f44e4e.peter@iyonix.earley.fourcom.com...
> In message <DeidnRKLD595AFDZnZ2dnUVZ8qqdnZ2d@bt.com>
> "Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
>
>> Just something I was mulling over this weekend.
>>
>> If both components pass over/through the same material (engine) is it not
>> correct to assume that both should register the same temperature. If not
>> why not.
>>
>> Or are both monitored at different stages of flow.
>>
>> dj
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
>
> --
> Peter Bell - peter@bellfamily.org.uk
hmmmm, oil splashed up the bores must touch the underside of the pistons.
These being aluminium the oil must be close to combustion chamber temps.
Aluminium is a first class conductor of heat.
I suppose my temps are close enough for the theory to stand.
thanks
07-31-2006, 12:14 PM
#7
Guest
Posts: n/a
Re: Oil and water
"Peter Bell" <peter@invalid.org.uk> wrote in message
news:3519f44e4e.peter@iyonix.earley.fourcom.com...
> In message <DeidnRKLD595AFDZnZ2dnUVZ8qqdnZ2d@bt.com>
> "Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
>
>> Just something I was mulling over this weekend.
>>
>> If both components pass over/through the same material (engine) is it not
>> correct to assume that both should register the same temperature. If not
>> why not.
>>
>> Or are both monitored at different stages of flow.
>>
>> dj
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
>
> --
> Peter Bell - peter@bellfamily.org.uk
hmmmm, oil splashed up the bores must touch the underside of the pistons.
These being aluminium the oil must be close to combustion chamber temps.
Aluminium is a first class conductor of heat.
I suppose my temps are close enough for the theory to stand.
thanks
07-31-2006, 12:14 PM
#8
Guest
Posts: n/a
Re: Oil and water
"Peter Bell" <peter@invalid.org.uk> wrote in message
news:3519f44e4e.peter@iyonix.earley.fourcom.com...
> In message <DeidnRKLD595AFDZnZ2dnUVZ8qqdnZ2d@bt.com>
> "Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
>
>> Just something I was mulling over this weekend.
>>
>> If both components pass over/through the same material (engine) is it not
>> correct to assume that both should register the same temperature. If not
>> why not.
>>
>> Or are both monitored at different stages of flow.
>>
>> dj
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
>
> --
> Peter Bell - peter@bellfamily.org.uk
hmmmm, oil splashed up the bores must touch the underside of the pistons.
These being aluminium the oil must be close to combustion chamber temps.
Aluminium is a first class conductor of heat.
I suppose my temps are close enough for the theory to stand.
thanks
07-31-2006, 12:14 PM
#9
Guest
Posts: n/a
Re: Oil and water
"Peter Bell" <peter@invalid.org.uk> wrote in message
news:3519f44e4e.peter@iyonix.earley.fourcom.com...
> In message <DeidnRKLD595AFDZnZ2dnUVZ8qqdnZ2d@bt.com>
> "Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
>
>> Just something I was mulling over this weekend.
>>
>> If both components pass over/through the same material (engine) is it not
>> correct to assume that both should register the same temperature. If not
>> why not.
>>
>> Or are both monitored at different stages of flow.
>>
>> dj
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
>
> --
> Peter Bell - peter@bellfamily.org.uk
hmmmm, oil splashed up the bores must touch the underside of the pistons.
These being aluminium the oil must be close to combustion chamber temps.
Aluminium is a first class conductor of heat.
I suppose my temps are close enough for the theory to stand.
thanks
07-31-2006, 01:01 PM
#10
Guest
Posts: n/a
Re: Oil and water
In message <pLadnVMD7biBp1PZnZ2dnUVZ8s2dnZ2d@bt.com>
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
>
> "Peter Bell" <peter@invalid.org.uk> wrote in message
> news:3519f44e4e.peter@iyonix.earley.fourcom.com...
> > Some oil does go to the head, to lubricate the valve gear and some
> > is sprayed onto the cylinder walls but not, necessarily, close to
> > the heat sources, and not in vast quantities.
>
> hmmmm, oil splashed up the bores must touch the underside of the pistons.
> These being aluminium the oil must be close to combustion chamber temps.
Yes, but only relatively small quantities of the oil.
--
Peter Bell - peter@bellfamily.org.uk
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
>
> "Peter Bell" <peter@invalid.org.uk> wrote in message
> news:3519f44e4e.peter@iyonix.earley.fourcom.com...
> > Some oil does go to the head, to lubricate the valve gear and some
> > is sprayed onto the cylinder walls but not, necessarily, close to
> > the heat sources, and not in vast quantities.
>
> hmmmm, oil splashed up the bores must touch the underside of the pistons.
> These being aluminium the oil must be close to combustion chamber temps.
Yes, but only relatively small quantities of the oil.
--
Peter Bell - peter@bellfamily.org.uk
