4k-4cyl alternator belt - BTDT's please?

[SHOWMX@aol.com]

Sorry about double post........  clumsy typing.

Time to replace alternator belt, it's looking pretty nasty. 

 Well it appears "Team Door Handle" thought this one up as well.  I took a
good look at it today, and consulted my Bentley.  Bentley doesn't have much to
say about it directly but by piecing together info I think I have a plan, and
am hoping for some BTDT's to confirm things.

Loosen up alternator, obviously... loosen up power steering pump & remove
belt... Now, the AC compressor belt???  It looks like I must remove the outer
half of the crankshaft pulley and tension disc?   I removed the fan assembly &
fan shroud to make some room, but it's still tight and I can't get my eyes
close to where they need to be.  There are four nuts on studs and a single
bolt head in the center of the tension disc which is sandwiched to the
crankshaft pulley. 

Is this the right way to do this?  If so, do I remove the 4 nuts only and
leave the center bolt head alone?  Will the removal and torque of the nuts
cause the crankshaft to move?

Thanks for any help,
Briand P.
'87 4kcs 1.8l w/p&p head, 270 cam & techtonics exhaust