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