How to change a diesel pump?

i have a 1998 ford mondeo diesel. the mian bearing is makin a noise. do i change the whole pump, or can i change the bearing whil the pump is still in the car???? if i change the pump, do i nee to set the timin marks?? it seems to run off the pwer steering pully. please help!!!
Sonny, January 2005


done
it,s a job for a pump specialist,if you get it wrong it could cost the big end of£1000

pete, February 2005
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