Removing crankshaft hub

["Doug Hill" <Doug_Hill1@xxxxxxx>]

I need assistance in removing the crankshaft hub in order to replace the
lower timing chain cover gasket on a 92 525i  M50.

The Bentley manual is not very clear, just says to lock the crankshaft in
TDC by inserting a special tool through bellhousing and drive plate.  Then
to "Remove the crankshaft hub bolt and washer and remove the hub from the
crankshaft".

How do I remove the hub?
Is it pressed on requiring a pulley puller or is it threaded?
Looks like the bolt is 22mm, can anyone confirm?

I've removed the valve cover and looking at the 2 Torx E8 bolts from above,
the manual says there are three?
Any other tricks involved with removing the lower timing chain cover? 

Appreciate any assistance.

Thanks
Doug Hill

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