Good day gentlemen, (87 Westy)

Spring in not so far and I found out that my rear engine noise come from
the coolant pump (Water pump). After removing the belt (alternator-pump) I
found out that the pump bearing was finish!!! So, by Bentley 19.14 (the
only info in that bible on the pump - no specified info on removing this
one!!!) I can see 3 bolts holding the pump; the upper one and the lower
left one look accessible but the lower right (view from the back of van or
in Bentley ) seem to be a problem, the crankshaft pulley (the big one) is
in the way of this bolt, even with a flexible ratchet it will be difficult
to reach. Second problem, all those bolts are rusted to the bone, even with
some loose nut and heating I am not sure I won't break those�
For those who have done this job, any suggestion!!! (Ex: did you remove any
exhaust part, engine mount or the crankshaft pulley)
Regards, Ben