Hi all.
In my C5 I fitted a manual cooling fan switch on the dash, works great.
But, when engine off, how much time to run the fan?
The rad is cold to touch in 1 minute. Its enough time or to continue so coolant hoses and engine block cool down also?
The fan (just 1) runs at max speed only and a good flow of air can be felt behind the radiator.
The new battery is a Yuasa, so it has enough power.
Cooling fan run time.
Moderator: RichardW
-
white exec
- Moderating Team
- Posts: 7445
- Joined: 21 Dec 2015, 12:46
- Location: Sayalonga, Malaga, Spain
- My Cars: 1996 XM 2.5TD Exclusive hatch RHD
1992 BX19D Millesime hatch LHD
previously 1989 BX19RD, 1998 ZX 1.9D auto, 2001 Xantia 1.8i auto
and lots of Rovers before that: 1935 Ten, 1947 Sixteen, 1960 P5 3-litre, 1966 P6 2000, 1972 P6 2000TC, and 1975 P6B 3500S - x 1752
Re: Cooling fan run time.
The radiator will be cooled very quickly by the fans (especially at full speed) with the engine not running.
Even without this "after-cooling" it will be safe to just shut everything down.
If you are going to run the fan for a while, a minute or two will be more than enough.
Trouble is, without the engine running, there is no circulation of coolant round the system (by the water pump), so its only the radiator (and the engine bay) that gets a bit of cool air, not the engine block.
I shouldn't worry about it too much.
Even without this "after-cooling" it will be safe to just shut everything down.
If you are going to run the fan for a while, a minute or two will be more than enough.
Trouble is, without the engine running, there is no circulation of coolant round the system (by the water pump), so its only the radiator (and the engine bay) that gets a bit of cool air, not the engine block.
I shouldn't worry about it too much.
Chris
-
seanrx
- Donor 2024
- Posts: 144
- Joined: 02 Feb 2017, 12:11
- Location: Lincolnshire
- My Cars: Citroen see5
- x 5
Re: Cooling fan run time.
Good to read, thanks for confirming this.