32mm spanner to get it off, if I remember right. You can give it a good whack to start it off, or use a 10mm wrench to hold one of the WP pulley bolts as you break it free. After that it just spins off.

 

Standard 1' long adjustable wrench fits and loosens/tightens my fan.
I hit the wrench handle with a dead blow hammer once and it breaks loose.
The original fan came off as easily also.
I have a fan wrench set too, but the adjustable jaws are wider, and it's easier to grab the wrench than open the plastic case for the fan wrench.

 

After fighting with the fan last weekend for 4 hours I bought a wrench set. Came off in 3 minutes. A few hours later I got the front cover off. Here is the oil pump gear and a video showing the play in the chain. I'm hopeful that this was the noise I was hearing. What else should I be looking at in here. I'm going to replace the pump gears and the chain.

 

Yeah... I don't remember having that much play in my new timing chain when I did mine.

 

Which fan tool did you get? I tried to get mine off with this one yesterday but couldn’t get it.

Performance Tool - Ford Fan Clutch Wrench Set (W80585) Engine

 

https://www.roverparts.com/engine/tools/61600/

and the accompanying flat spanner.

 

That chain is not bad - but if it makes you feel better they are not expensive so little harm in replacing it. How was your oil pressure with that pump?

 

cold 55 pounds at idle.
hot 15 at idle and 45 at 2000 rpm

 

Interesting, given the broken oil pump gears.

 

Timing cover gasket mating surface and gears all cleaned up. New chain installed. Need to borrow an inch pound torque wrench from a friend tomorrow so I can install the oil pump cover correctly.