Vauxhall Workshop Service and Repair Manuals

Piston Rings, Remove and Install  

  Remove, Disconnect   

Remove piston with con-rod - see operation "Piston with Con-rod, Remove and Install".     Clean    Remove piston rings with piston ring pliers (1).     Inspect    Clean piston ring grooves - use ground-down side of old piston ring.   Check piston ring gap with feeler gauge by inserting piston ring at narrowest point of the cylinder bore.   Permissible ring gap: see Technical Data.       X 20 DTL   X 20 DTH   I   First compression ring   Rectangular compression ring   Double trapezoidal ring   II   Second compression ring   Tapered compression ring   III   Oil scraper ring   Double bevelled ring

  Inspect   

Check piston ring vertical play with feeler gauge in piston ring groove.   Permissible vertical play: see Technical Data.       X 20 DTL   X 20 DTH   I   First compression ring   Rectangular compression ring   Double trapezoidal ring   II   Second compression ring   Tapered compression ring   III   Oil scraper ring   Double bevelled ring       Install, Connect    Insert piston rings in piston with piston ring pliers.   Insert tapered compression ring (II) in piston with mark "TOP" on top.   Adjust position of piston ring gaps - the gap of each piston ring must be offset by 120 ° . cylinder bore.   Install piston with con-rod - see operation "Piston with Con-rod, Remove and Install".