New fan clutch does not pass rolled newspaper test

[GoldMember]

So I replaced my fan clutch because it didn't pass the rolled newspaper test, and I was noticing movement to the right on my temp gauge.

The new Sachs fan clutch also does not pass the test when at operating temperature. However, when I start the car after sitting, even for a few minutes, the fan seems directly connected (turns FAST) but calms down after about 10 seconds. After that, it does not pass the newspaper test.

Could it be that this clutch was not stored correctly? I see on the box that it is supposed to be stored flat but I've heard to always keep my fan upright when removing it.

What have I got here? Defective new part? Incorrect install? Am I not doing the test correctly?

Thanks!

[digger]

How hot are you letting it get and how long are you waiting for it to kick in? It seem you really need to heat soak it get it to kick in. there is a time factor as the unit needs to heat up itself and it will lag being the temp on the temp sender.

[GoldMember]

How hot are you letting it get and how long are you waiting for it to kick in? It seem you really need to heat soak it get it to kick in. there is a time factor as the unit needs to heat up itself and it will lag being the temp on the temp sender.

I drove it for 10 minutes in 85 deg ambient. Stopped for 30 min. And drove it for another 10 minutes. I'd say it was completely warm at that point. Is that not enough?

And what about the fact that when I first start it, the fan runs at engine speed for a short minute. Very loud and fast. Then all it takes is a few revs of the engine and the clutch loosens up. Is that normal?

What's the worst case scenario if the clutch was stored incorrectly? How would it act?

Thanks.

[TURBOX]

where did you get the parts?

[GoldMember]

where did you get the parts?

Autohaus AZ. Got the expensive one.

http://www.autohausaz.com/pn/2100012142

[dude8383]

The fan clutch really only operates at idle conditions or whenever its like stupid hot.

You should let the car idle for a few minutes after you've come back from a trip. Then check if the clutch is doing what its supposed to!

[AbsorbantNut]

I've had BNIB fan clutches that were bad from AutohausAZ. Luck of the draw. I emailed them & recieved a new one that worked after

[digger]

All clutches Ive handle had a bit of grab to them when cold not like when they get hot and activate though. Do you have a infrared gun to check temps ? Did ones are not uncommon. Do the dud ones not engage at all? Or engage at too high a temp?

[GoldMember]

Thanks for the responses, guys. I do have a temp gun. What temp should I be looking for?

I spoke to AutohausAZ. They don't like the rolled newspaper test. He said with the car at operating temp, shut it down and turn the fan by hand. It should not go more than 1/4 to 1/2 a turn. Mine goes 1/2 a turn.

Still looking for good confirmation that my new fan clutch is working correctly. It's interesting to me that it locks up (turns super fast) upon start up, then loosens up.

[whodwho]

Their spin test 'at temp' is not necessarily a good test.

'at temp' the fan is not needed, above temp is when it is needed. Depending if the clutch is engaged you can easily spin the fan freely backwards to engine rotation and the motor is idling warmed up.

From your post it sounds like it is working, you can also hear it moving air when it is engaged. Some temp swing is normal, I wouldn't stress if it is not overheating idling. I would just make sure it is bled fully they are very sensitive to that.

[digger]

Thanks for the responses, guys. I do have a temp gun. What temp should I be looking for?

I spoke to AutohausAZ. They don't like the rolled newspaper test. He said with the car at operating temp, shut it down and turn the fan by hand. It should not go more than 1/4 to 1/2 a turn. Mine goes 1/2 a turn.

Still looking for good confirmation that my new fan clutch is working correctly. It's interesting to me that it locks up (turns super fast) upon start up, then loosens up.

turn engine off and point at the fan hub to see what temp the alloy housing is. if its at 95C it should be working. also check the themostat housing and rad hoses

[GoldMember]

turn engine off and point at the fan hub to see what temp the alloy housing is. if its at 95C it should be working. also check the themostat housing and rad hoses

I'll check it out. 95C is pretty hot, IMHO.

[digger]

Yes, I don't mean that is when it Kicks in but it well and truly should have if its close to that

[Madhatter]

Rough point is basically when the thermostat is open. So if you grab the top and bottom radiator hoses and they are both hot to the touch, the clutch fan should have engaged and air will be blasting out over the motor.

[GoldMember]

Rough point is basically when the thermostat is open. So if you grab the top and bottom radiator hoses and they are both hot to the touch, the clutch fan should have engaged and air will be blasting out over the motor.

I don't feel like this is the case.

Lots of different answers to this question here! All of them make sense but I need something a bit more definitive if I'm going to contact Autohaus AZ about a replacement. Right?