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| Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler. |
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11-18-2009, 08:49 AM
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#1 (permalink)
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Member
Grand Prix 125 Favourite Bike: 2007 Bonnie T-100 carb
Join Date: Oct 2009
Location: philly PA
Posts: 39
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Differences in engine cooling
forgive the Noobness..
i tried to do a search on this topic but i am still a bit confused on the differences of Air, Oil, and water cooled engines
(how they work and advantages vs disadvantages etc..)
also curious.. i thought the 2007 T100's were oil cooled but the owners manual says its they are air cooled
?
if anyone can help set me straight i would be greatfull
thanks in advance for your time!
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11-18-2009, 09:07 AM
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#2 (permalink)
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Senior Member
SuperStock Favourite Bike: "Hamilton"
Join Date: Aug 2009
Location: Flat Lands of Mid Florida
Posts: 219 Other Motorcycle: Kawaski KX105 (85 Bored)
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Quote:
Originally Posted by bonesboyB
forgive the Noobness..
i tried to do a search on this topic but i am still a bit confused on the differences of Air, Oil, and water cooled engines
(how they work and advantages vs disadvantages etc..)
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Don't quote me on this but I "think" most motorcycle engines are air cooled. The majority of the cooling function comes from air moving across the engine fins. Now, you can add (or the bike comes with one) an Oil cooler... this will cool the oil after it leaves the engine removing more heat.
Water cooled engines are just like a car in that they will have a radiator that circulates water through the engine to remove heat.
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11-18-2009, 10:28 AM
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#3 (permalink)
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Member
Grand Prix 125 Favourite Bike: 2007 Bonnie T-100 carb
Join Date: Oct 2009
Location: philly PA
Posts: 39
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Quote:
Originally Posted by GySchmit
Don't quote me on this but I "think" most motorcycle engines are air cooled. The majority of the cooling function comes from air moving across the engine fins. Now, you can add (or the bike comes with one) an Oil cooler... this will cool the oil after it leaves the engine removing more heat.
Water cooled engines are just like a car in that they will have a radiator that circulates water through the engine to remove heat.
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THats what i was figuring.. so i guess Air cooled also means the Air cools the Oil radiator on the front of the bike (that in part cools the oil )
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11-18-2009, 10:29 AM
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#4 (permalink)
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Loose Head Administrator
Site Supporter Supernova Favourite Bike: 2011 Tiger 800XC
Join Date: Mar 2008
Location: MN, USA
Posts: 21,419 Other Motorcycle: 2007 Bonneville Big Carbs Extra Motorcycle: G12DL, ZX1100, KLR650
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That and the fins on the cylinder head and barrells. Also, there is natural air cooling of the engine side covers, though that's not as efficient as the oil cooler.
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11-18-2009, 10:36 AM
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#5 (permalink)
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Senior Member
Formula Extreme Favourite Bike: '07 Thruxton
Join Date: Mar 2008
Location: Herndon, VA
Posts: 601 Other Motorcycle: None, ATM
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I know the question has been answered already, but if you are looking for a more long-winded explanation, howstuffworks.com has some good stuff for how to better understand how the cooling system in a car (same as a water-cooled bike) works... They also discuss the difference between air cooled and water cooled.
http://auto.howstuffworks.com/cooling-system1.htm
__________________
"...of course, he was the walrus. I could be the walrus, but I'd still need to bum rides off of people"
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11-18-2009, 10:37 AM
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#6 (permalink)
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Member
Grand Prix 125 Favourite Bike: 2007 Bonnie T-100 carb
Join Date: Oct 2009
Location: philly PA
Posts: 39
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haha prop,
i just noticed your Link Wray tag ! haha
so, is the T100 considered Air Cooled like it states in the manual? (even though it has a oil cooler)
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11-18-2009, 10:39 AM
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#7 (permalink)
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Loose Head Administrator
Site Supporter Supernova Favourite Bike: 2011 Tiger 800XC
Join Date: Mar 2008
Location: MN, USA
Posts: 21,419 Other Motorcycle: 2007 Bonneville Big Carbs Extra Motorcycle: G12DL, ZX1100, KLR650
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Quote:
Originally Posted by bonesboyB
haha prop,
i just noticed your Link Wray tag ! haha
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Not following you.....
Quote:
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so, is the T100 considered Air Cooled like it states in the manual? (even though it has a oil cooler)
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Yes it is an air cooled motor.
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11-18-2009, 01:25 PM
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#8 (permalink)
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Senior Member
SOTP Vintage Series Favourite Bike: 03 T100
Join Date: Mar 2007
Location: richmond va
Posts: 6,084
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our bikes are both air and oil cooled .There air cooled like most air pluss the front of the jugs/head have oil pumped through them that help cool them .The oil cooler then cools the oil.
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Why do I feel young on my bike
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11-18-2009, 01:40 PM
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#9 (permalink)
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Member
Super Sidecars Favourite Bike: 2010 Thruxton 900
Join Date: Sep 2009
Location: British Columbia
Posts: 54 Extra Motorcycle: BMW R26
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Our bikes are primarily air cooled; that is the main cooling process is air acting directly on the surface of the engine. The surface area of the head and barrels is enlarged by the finning. Supplementary but significant cooling is provided by the oil cooler as the oil passes through its core. The modern BMW flat twins, for instance, are referred to as oil cooled because the significance of the oil and air cooling is reversed. That engine has only rudimentary finning and the oil is actively used to cool the engine, as well as lubricate it, by being sprayed onto the underside of the pistons. Water cooled engines have internal passages cast into the head and block that allow water to carry heat away to the radiator.
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11-18-2009, 02:19 PM
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#10 (permalink)
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Member
Grand Prix 125 Favourite Bike: 2007 Bonnie T-100 carb
Join Date: Oct 2009
Location: philly PA
Posts: 39
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understood!!
it all makes sense
thanks everyone
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