power steering pump..

[chrisevo4]

hi all i ve got a evo 4 haveing problems with power steering pump it keeps snaping the pully off ??
any 1 ever hurd of this ?
im on my 3rd pump now .:wtf:

 

[Simon@NTS]

I'd say you may have a problem with the rack maybe not being able to circulate oil properly

 

[chrisevo4]

been tolt this is common as evo 4 pullys are welded on and 5 un 6 are bolted on ??