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Old 02-09-2018, 12:52 PM   #11
RBBailey
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I drove it yesterday, and this morning, and it acted normal for both of those drives. On for a minute or two, then it releases. Seems normal. But probably something I'll have to show my kid how to replace at some point. Thanks for the part numbers.
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Old 05-14-2018, 04:54 PM   #12
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Basic question about the viscous fan (on the 19J engine in my case): how tight should the center nut on the fan clutch be? Specifically, should the plastic fan blades spin at all without engaging the pulley-rod? I can't remember how mine was before I started tinkering with it, and now it is starting to get warm enough for engine cooling to really matter.

The workshop manual lists the "Fan Assembly to Water Pump Hub" as 16-20 ft.-pounds, but I assume those are the four bolts in the second picture, not the single bolt keeping the plastic blades from flying off.
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Old 05-14-2018, 05:32 PM   #13
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I understand how the viscous clutch will engage/disengage as a function of temperature, but for that to work does the center nut need to be tightened to attach the movement of the blades to the rotation of the clutch itself?
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Old 05-14-2018, 06:18 PM   #14
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Quote:
Originally Posted by mitherial View Post
Basic question about the viscous fan (on the 19J engine in my case): how tight should the center nut on the fan clutch be? Specifically, should the plastic fan blades spin at all without engaging the pulley-rod? .
I've always just barely snugged them because the rotation keeps them tight.
I also put a little smear of silver anti-seize in the nut because these are always hard to remove...


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Old 05-14-2018, 08:23 PM   #15
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I've hand tighten my... NEVER had a fan issue in any of my Rovers.


They spin the same rotation as tightening it.
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Old 05-14-2018, 08:51 PM   #16
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yep don’t over do it and use anti seaze.. that said if you have on the this stuck ON.. when you replace it, throw that one in the trail spares box... b/c its better to be stick on than off.. and its a free spare so to speak.. had them break in the OFF poisition which sucks for getting you home when its hot.. and carrry both the fan wrench and the holder tool.. the Nut comes off to the drivers side (down) btw...
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