Volkswagen Passat 1995 Official Factory Repair Manual page 71

Pistons and connecting rods, disassembling and assembling
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...
Special tools, testers and auxiliary
items
Feeler gauges
Internal dial gauge 50-100 mm
Micrometer 75-100 mm
Fig. 1 Checking piston ring gap
- Squarely insert piston ring into
cylinder from above, to approx. 15
5
mm ( / in.) from bottom of cylinder.
8
Piston ring Ring gap - mm (in.)
Compression 0.20-0.40
ring
(0.0078-
0.0157)
Oil scraper 0.25-0.50
ring
(0.0098-
0.0197)
Page 8 of 12
13-35
New Wear
limit
1.0
(0.039)
1.0
(0.039)
5/12/2004