Bimmerfest - BMW Forums - View Single Post - Fan clutch removal trick, screw that stupid special tool
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Old 01-19-2013, 01:30 PM
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BMR_LVR BMR_LVR is offline
Humble E34 lover
Location: Asheboro, NC
Join Date: Dec 2008
Posts: 5,464
Mein Auto: 1992 525i
Originally Posted by dc_wright View Post
That's the purpose of the left hand thread's BUT, you still need to make certain it's tight or you may go through 2 new fans in 3 days like I did. I'd replaced my fan because it chucked a couple of blades and when I put it back on I relied on the friction of the belts to hold the nut while I tightened it. This is a bit extreme but a couple days later during hot weather and after sitting in a drive through line for a while, probably long enough for the viscous clutch to kick in and be spinning the fan, I needed to pull out into traffic. It was a 6 lane road and I had to really get on the throttle to get across the first three lanes then back down to a stop to wait for an opening in the direction I needed to go. Apparently the quick acceleration with the viscous clutch engaged followed by the hard deceleration left enough inertia in the fan that it loosened the nut and spun out and off the water pump. Fortunately it only damaged the fan shroud and didn't puncture the radiator! advice and now my practice is I give the wrench a couple whacks with the hammer to tighten the nut and finish off the job.
Originally Posted by jonesin View Post

This is what the Bentley says.
Thanks guys. Next time I will give it the whack like suggested. I do have the proper hold down tool so it will be easy for me.
Most problems are usually something simple !

Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.

Calypso Red 1992 525i with 225K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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