Fan question
Thread Starter
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Mountain Pass
Joined: Sep 2010
Posts: 205
Likes: 0
Fan question
this may sound silly but the stock belt driven fan off the water pump pulley seems to have a clutch and i can spin it freely.
is it supposed to spin all the time? what controls this clutch?
if its always spinning when the engine is running, why can it disengage and free spin by hand when the engine is off?
pardon my ignorance, positive input appreciated
is it supposed to spin all the time? what controls this clutch?
if its always spinning when the engine is running, why can it disengage and free spin by hand when the engine is off?
pardon my ignorance, positive input appreciated
Elder User
Joined: Apr 2008
Posts: 841
Likes: 1
From: North Carolina
it will spin all the time, it engages/diengages based on heat.
when it is disengaged, it is spinning, but not the same speed as the engine, (and can actually be stopped, but this is not recommended
)
Here's a better explination: Fan Clutch What Is It and Whats it Do : How Car Stuff Works
when it is disengaged, it is spinning, but not the same speed as the engine, (and can actually be stopped, but this is not recommended
)Here's a better explination: Fan Clutch What Is It and Whats it Do : How Car Stuff Works
Thread Starter
|
Mountain Pass
Joined: Sep 2010
Posts: 205
Likes: 0
it will spin all the time, it engages/diengages based on heat.
when it is disengaged, it is spinning, but not the same speed as the engine, (and can actually be stopped, but this is not recommended)
Here's a better explination: Fan Clutch What Is It and Whats it Do : How Car Stuff Works
when it is disengaged, it is spinning, but not the same speed as the engine, (and can actually be stopped, but this is not recommended
)Here's a better explination: Fan Clutch What Is It and Whats it Do : How Car Stuff Works
that makes sense thanks
Posting Guru
Joined: Sep 2008
Posts: 1,123
Likes: 4
From: Baltimore
Tractor-trailors use an air/clutch system, that when the temp rises, a solenoid admits air to the fan clutch and it kicks out to engage the fan. They have an over-ride switch on the dash to always lock in the fan in extreme conditions.
