How do you remove the fan clutch assembly to remove the water pump on 2000 Chevy Blazer?
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Answer

to remove the cluth fan assembly, i always use a large crescent wrench..just keep in mind it is left hand threads, you may need to have an extra person with you to help hold the pulley from turning..usually tapping on the wrench with a hammer is the only way it will move

Answer

I,ve turned wrenches full and part time for over 35 years. Nowadays I only do jobs for myself, family and friends. On a 98 Chevrolet P/U with a 350 Vortec, I encountered the new screw on fan clutch. I rented the special spanner wrenches to hold the hub and used a large adjustable wrench. Tried to tun it for left and right hand threads. Used a propane torch to no avail. I finally took the water pump with fan, clutch and hub intact off the vehicle.I put the water pump in a BIG vise, Heated the screw on hub with a large oxy-acetylene torch red hot, used a three goot breaker bar and the spanner and got it loose with a great deal of effort. This is a tough job.WHY WOULD THE ENGINEERS GO TO THIS SYSTEM? By the way the hub is threaded for right hand threads. Not left hand threads.

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