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Old May 29th 2018, 02:14 PM   #1
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I Ride: 2018 Panigale V4. Have had 4 Ducatis before this. And some 30 other bikes.
Cooling fan

I have a V4 base, and have after sw update at the dealer experienced that the cooling fan does not stop after I turn of the ignition. It takes a while blowing at full speed. That does not make sense to me since the water pump is not circulating the coolant. Unless the bike has an electric cooling pump (never heard of that). Anyone else has the same experience?
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Old May 29th 2018, 02:20 PM   #2
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That's quite normal . My Porsche does the same thing
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Old May 29th 2018, 02:27 PM   #3
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Almost every bike and car I've owned made past about 2005 does that. Totally normal and the radiator still functions even without a pump going, just not efficiently enough for a running engine. Thermal convection plus the thermal conductivity of your coolant help with that.

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Old May 29th 2018, 05:08 PM   #4
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Originally Posted by wilkson View Post
That's quite normal . My Porsche does the same thing
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Old Jun 1st 2018, 04:19 PM   #5
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Originally Posted by Darwin604 View Post
Almost every bike and car I've owned made past about 2005 does that. Totally normal and the radiator still functions even without a pump going, just not efficiently enough for a running engine. Thermal convection plus the thermal conductivity of your coolant help with that.

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You have to have a high temperature differential for that to work
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Old Jun 1st 2018, 04:56 PM   #6
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Originally Posted by Halo2 View Post
You have to have a high temperature differential for that to work
If you have a huge temperature gradient that means it's NOT working, haha. But yeah obviously it's not efficient at all but it's still helping your bike cool down instead of sit sitting there with stagnant air creating hot spots.

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Old Jun 1st 2018, 08:07 PM   #7
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Originally Posted by Darwin604 View Post
If you have a huge temperature gradient that means it's NOT working, haha.
But that is how it works, you have to get the coolant cool enough to start thermo siphon cycle.

I doubt the fan running for a minute would do that
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Old Jun 1st 2018, 08:17 PM   #8
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Originally Posted by Darwin604 View Post
Almost every bike and car I've owned made past about 2005 does that. Totally normal and the radiator still functions even without a pump going, just not efficiently enough for a running engine. Thermal convection plus the thermal conductivity of your coolant help with that.

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Is the fan supposed to run on a 2015 base 1299 as well like on the V4 even after the ignition is shut off? Or does the fan stop once the ignition is shut off? My fan shuts off as soon as the ignition is turned off on my 1299. And I dont remember if it did that last year lol.
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Old Jun 10th 2018, 08:26 AM   #9
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Yeah mine does it, but only if the temp indication is up to 3 bars. It shuts itself off after a minute or two so I assume it's normal as the others say.
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