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Message |
TeGGer®
Guest
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 Posted:
Thu Dec 23, 2004 6:17 am Post subject:
Re: 2003 Corolla transmission fluid change...need help |
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"Philip" <1chip-state1@earthlink.net> floridly penned in
news:Nmkyd.9226$yK.7873@newsread3.news.atl.earthlink.net:
| Quote: | Dan Gates wrote:
Basically, you don't put it in drive until the it has had a chance to
warm up a bit.
Think. The transmission heat exchanger is located in the bottom
radiator tank. Until there is flow thru the radiator, NO heat is
imparted from the engine coolant to the ATF fluid. So for your
transmission "to warm up a bit" would require the thermostat to open
first. Do you wait at least THAT long?
|
He may be referring to frictional heat originating from the torque
converter.
| Quote: |
Ambient low was -30.7°C (-23.3°F), high was -15.1°C
(4.8°F). Breeze was "stiff" out of the north west. Even with a
block heater, switched on for 3 hours, the starter has a difficult
time turning the engine over. If it were not for fuel injections,
many of the cars that did start on Monday would not have started.
The BATTERY loses considerable deliverable cranking power as it is
chilled. A block heater does nothing to offset this fact.
|
Correct, but a looser engine requires fewer cranking amps to turn over.
Warmer engines are looser, even with cold, thick oil.
Block heaters work very, very well, trust me on this. But in extremely cold
weather (40 below), they need to be left on all night/day, not just for 3
hours. In Alberta, you plug in when you go to bed or arrive at work.
--
TeGGeR®
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Philip
Guest
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| Posted:
Thu Dec 23, 2004 8:06 am Post subject:
Re: 2003 Corolla transmission fluid change...need help |
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TeGGer® wrote:
| Quote: | "Philip" <1chip-state1@earthlink.net> floridly penned in
news:Nmkyd.9226$yK.7873@newsread3.news.atl.earthlink.net:
Dan Gates wrote:
Basically, you don't put it in drive until the it has had a chance
to warm up a bit.
Think. The transmission heat exchanger is located in the bottom
radiator tank. Until there is flow thru the radiator, NO heat is
imparted from the engine coolant to the ATF fluid. So for your
transmission "to warm up a bit" would require the thermostat to open
first. Do you wait at least THAT long?
He may be referring to frictional heat originating from the torque
converter.
Ambient low was -30.7°C (-23.3°F), high was -15.1°C
(4.8°F). Breeze was "stiff" out of the north west. Even with a
block heater, switched on for 3 hours, the starter has a difficult
time turning the engine over. If it were not for fuel injections,
many of the cars that did start on Monday would not have started.
The BATTERY loses considerable deliverable cranking power as it is
chilled. A block heater does nothing to offset this fact.
Correct, but a looser engine requires fewer cranking amps to turn
over. Warmer engines are looser, even with cold, thick oil.
Block heaters work very, very well, trust me on this. But in
extremely cold weather (40 below), they need to be left on all
night/day, not just for 3 hours. In Alberta, you plug in when you go
to bed or arrive at work.
|
There is no "frictional heat" generated in Park/Neutral. Even in temperate
conditions, if you just drive away cold, the engine reaches operating
temperature before the transmission reaches the same temperature.
--
- Philip |
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MDT Tech®
Guest
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| Posted:
Sat Dec 25, 2004 7:53 am Post subject:
Re: 2003 Corolla transmission fluid change...need help |
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Philip wrote:
| Quote: | Hey... I just (accidentally) figured out how to do temperature conversions
in the negative on my conversion calculator. This is NOT covered in the
little handbook either! -22°F = -30°C.
|
LOL, I use:
http://www.worldwidemetric.com/metcal.htm
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