Ford jubilee front engine leak

So whenever my jubilee is running there is a substantial leak somewhere around or behind the crankshaft pulley. I see the oil flinging off the pulley and the nut at the end of the shaft that holds the pulley on was not even hand tight. What can i do to confirm the leak location and how hard is this crankshaft seal to replace if that's the issue?
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Straight forward. Remove sheet-metal and radiator.
Remove front axle, radius arms and steering rods.
Remove front bolster, inspect axle pivot for wear/replacement.
Remove pulley and half moon key.
Remove timing gear cover/disconnect governor rod. Oil pan bolts too maybe, I don't recall.
R+R crank seal and governor seal. Inspect seal mating surface on the crank, may need a repair sleeve. Grease seal face for reassembly.

Never did a 134; suspect it is pretty much like a 172.
Sheet metal bolts will want a head start with some penetrating oil.
Pickle fork to separate the steering tie rod ends.
1/2" drive with sockets for axle bolster.

Worst will be fighting with sheet metal bolts.
 
The NAA should have a two peace timing cover, front half covering the governor. 5 bolts hold it. It will be close quarters but it should come out without
removing any tin. Granted one must remove the crankshaft nut and pulley.
 

So i need to remove the crankshaft nut, pulley, timing cover. What will i run into when i get in there? Is it straight forward removing the crankshaft seal? Is there anything else i need to do or should do or replace while in there?

Erni d thank you. I appreciate your direction. Im so new to this tractor i hope somebody knows the exact steps from start to finish, also the best place to find replacement seals and the crankshaft sleeve you speak of
 

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