440 running a litte hot lately.

[michael]

Have a 5 blade viscous fan for a extra 15 up. Can those things go bad? Mine is quite old. Any way to test them?

 

[moparleo]

There are 2 types. One is oil filled and one is thermostatic coil type.

 

[moparlee]

My 440 was also running hot which had an oil filled clutch fan. Replaced it with a new one and all is well. There was a noticeable turning resistance difference between the old one and the new one.

 

[Chryco Psycho]

True , the clutch is filled with a fluid that expands with heat locking the clutch , if the fluid leaks out the clutch will not lock up & the fan will turn slow due to the drag making the cooling less effective

 

[michael]

hot 440

There are 2 types. One is oil filled and one is thermostatic coil ty[t/AUtO the one I have are the ones that sell for about 115$ I think this is the thermodynamic type. Are the oil filled ones any better? Can the thermodynamic ones go bad? I guess anything mechanical can go bad!

 

[moparleo]

Don't take a chance with your motor. Buy a top quality part. They are both good. Also be sure to use the proper sized fan shroud. It makes a big difference.