1960 Anoying Vibration

[60eldo]

  Hey thanks. To think about it, I did change the fan, Im wondering if thats it. I dont know what a visco is? If I take a pic and show you my fan could you tell?  I might have the wrong fan on here

[Big Fins]

I'm looking forward to this answer.

I never heard of a '60 with a fan clutch on it unless it was added by an owner/shop aftermarket. All that I've ever seen had straight 4 blade fans for non A/C cars and 6 or 7 blade fans for A/C with a shroud and the radiator on the front of the support.

[1959Fleetwood]

Hello Johnny,

The visco clutch is the finned allumium part in front of the fan. 1960 was the 1st year that Cadillac used a visco clutch.

Matern Harmsel

[1959Fleetwood]

According to the MPL, the fan clutch or visco clutch is listed under group # 1050 and part # 1478579 and is for
airconditioned cars only. When the oil in the fan clutch is cold ( cold engine ) there has to be a severe resistance in turning the fan and clutch assembly. When the oil in the clutch has the engine temperature ( hot ) it will turn with almost no resistance. Old used fan clutches are prone to leak oil and the bearing inside can get sloppy so it's worth checking before mounting it to the water pump.

Matern Harmsel

[INTMD8]

The clutch fan is designed to work opposite of that ^

Thermostatically controlled to basically free wheel when cold and engage as temperature increases.

[1959Fleetwood]

Jim, your right, for some reason i mixed it up 

Matern

[76eldo]

I believe the correct term is viscous fan clutch.
AC cars had them, non AC cars did not.