Viscous Fan Clutch and Pulley - Mercedes-Benz Forum

Go Back   Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W201 190 Class
New User? Register - Forgot Password is the premier Mercedes-Benz Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 06-11-2009, 11:13 AM   #1 (permalink)
BenzWorld Member
viejo1221's Avatar
Date registered: Feb 2009
Vehicle: 1995 C36 AMG
Location: Eureka, CA
Posts: 199
Viscous Fan Clutch and Pulley

I have a couple questions about the Viscous Fan Clutch, and I realized that I had too many topics in my other thread. I'm learning, sorry.

How does it work exactly? When I first posted, I thought it wasn't working correctly because I thought that when you first start the car, the fan wouldn't need to spin. But after some more reading, my understanding is that the fan spins with RPMs at idle, continues to spin while driving until the Thermo viscous _______ (fill in the blank) reaches a certain temp at which point the clutch disengages and the fan spins free. So that when you're at highway speeds, airflow takes care of cooling and not the Fan with RPMs. Am I on the right track?

Haynes manual says that once removed the viscous fan clutch should be stored standing up. Haven't seen that anywhere else. Anyone know why?

What should I use to clean the front of the fan clutch that won't harm it? chowbow suggested to just use water, I'll try that tonight and see if I can get all that grease buildup off of there.

Lastly, I was putting the pulley back on to the bearing bracket and one of the 10mm bolts' head broke off. Should I just get 4 new ones from the hardware store? It's a new pulley but it didn't come with the 10mm bolts. I just thought that one of four bolts being different may cause a balance issue if they don't all weigh the same.

w202 - 1995 C36 AMG
w124 - 1994 E320 sold
w201 - 1991 190E 2.6 sold

"I spent a lot of money on booze, birds and fast cars. The rest I just squandered." - George Best

viejo1221 is offline   Reply With Quote

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W201 190 Class


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Topic Author Forum Replies Last Post
Viscous Fan Clutch Pulley Loose dpaterso W140 S-Class 2 05-22-2012 05:08 PM
Viscous fan clutch impossible to remove? Sergio W124 E,CE,D,TD Class 11 03-23-2009 06:21 AM
Viscous fan clutch Ken D W126 S,SE,SEC,SEL,SD,SDL Class 4 09-25-2008 12:46 PM
Viscous Fan Clutch Replacement, DIY... pcmaher W140 S-Class 7 05-03-2005 08:38 PM
viscous fan clutch briankim G-Class 11 08-06-2003 12:48 PM

All times are GMT -7. The time now is 11:15 PM.

Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.