How to Replace the Piston Rings Opel Vectra A

Piston Rings, Replace

Remove piston with con-rod - see operation

"Piston with Con-rod, Remove and Install".

Remove piston rings with piston ring pliers (1).

Piston ring grooves - use ground-down side of old piston ring.

Piston ring gap clearance - with feeler gauge.

Insert piston ring at narrowest point on cylinder bore.

Permissible ring gap clearance:

Rectangular compression ring - 0.3 to 0.5 mm

Tapered compression ring - 0.3 to 0.5 mm

Oil scraper ring - 0.4 to 1.4 mm

Piston ring vertical play - with feeler gauge in piston ring groove.

Permissible vertical play:

Rectangular compression ring - 0.02 to 0.04 mm

Tapered compression ring - 0.02 to 0.04 mm

Oil scraper ring - 0.01 to 0.03 mm

Insert new piston rings in piston with commercially available piston ring pliers and code "TOP" on top.

Piston ring positions - piston rings (I) every 180°.

Oil scraper rings (II) - 25 to 50 mm/1 to 2 in. offset to left and right from gap of intermediate ring.

Push piston into cylinder bore with hammer shaft see operation "Piston with Con-rod, Remove and Install".