The variable coolant pump 1, further comprising a return spring, arranged to pretension {TAIL ~ the guide disc} towards {HEAD ~ the impeller} via the piston 
The variable coolant pump 1 , further comprising a return spring , arranged to pretension { TAIL ~ the guide disc } towards { HEAD ~ the impeller } via the piston
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH