My Cooling Improvement Project (hopefully)
Here are the photos of the adapter that I made to adapt the clutch fan to the water pump.
I used a piece of 1/4" thick steel plate and drilled all the mounting holes then chucked it up on an arbor in the lathe and turned the diameter.
The center hole is 5/8".
The holes for the water pump are 5/16".
The holes for the clutch fan are tapped for 5/16-24 bolts.
The bolts that I used to attach the adapter to the fan are old 1/2" x 5/16-24 torque converter bolts.
The fan can be mounted on either side of the adapter.
This gives a depth adjustment of about 3/8", 1/4" adapter thickness + 1/8" fan thickness.
I am going to mount the fan on the radiator side of the adapter for my trial.
Herb