Passat L4-1984cc 2.0L DOHC (9A) (1990)
/Page-519001.png)
Piston Ring: Specifications
Piston Ring End Gaps [1]:
Top compression ring:
New .................................................................................................................................................................. 0.20-0.40 mm (0.0079-0.0157 in.)
Wear limit ................................................................................................................................................................................. 1.0 mm (0.039 in.)
Bottom compression ring:
New .................................................................................................................................................................. 0.20-0.40 mm (0.0079-0.0157 in.)
Wear limit ................................................................................................................................................................................. 1.0 mm (0.039 in.)
Oil scraper ring:
New .................................................................................................................................................................. 0.25-0.50 mm (0.0098-0.0197 in.)
Wear limit ................................................................................................................................................................................. 1.0 mm (0.039 in.)
Piston Ring Side Clearances [2]:
Compression rings:
New .................................................................................................................................................................. 0.02-0.07 mm (0.0008-0.0028 in.)
Wear limit ............................................................................................................................................................................. 0.15 mm (0.0059 in.)
Oil scraper ring:
New .................................................................................................................................................................. 0.02-0.06 mm (0.0008-0.0024 in.)
Wear limit ............................................................................................................................................................................. 0.15 mm (0.0059 in.)
______________________________________
[1]: Piston ring end gaps are checked with the piston rings inserted approximately 15 mm (5/8 in.) from the bottom of the cylinder.
[2]: Piston ring side clearance is checked using feeler gauges. Piston ring grooves should be thoroughly cleaned before checking ring side clearance.
Measure each ring in its original groove.
