compression AUDI A6 1998 C5 / 2.G AEB ATW Engines Pistons And Connecting Rods Workshop Manual

13-58


Fig. 1 Checking piston ring end gap
- Insert ring at right angle from top and slide down until approx. 15 mm
(19/32 in.) from lower edge of cylinder. To insert, use piston without
rings. Piston ring
End gap, new mm (in.)
Wear limit
mm (in.)
1. Compression ring 0.20-0.40
(0.0078-0.0157) 0.8
(0.0315)
2. Compression ring 0.20-0.40
(0.0078-0.0157) 0.8
(0.0315)
3. Oil scraper ring 0.25-0.50
(0.0098-0.0197) 0.8
(0.0315)

Fig. 2 Checking piston ring side clearance
- Before checking, clean ring groove.Piston ring
Side clearance, new mm (in.)
Wear limit
mm (in.)
1. Compression ring 0.06-0.09
(0.0023-0.0035) 0.20
(0.0078)
Pa
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2. Compression ring 0.05-0.08
(0.0019-0.0315) 0.20
(0.0078)
3. Oil scraper ring 0.03-0.06
(0.0011-0.0023) 0.15
(0.0059)
Pa
ge 7 of 9 Pistons and connectin
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11/18/2002 htt
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play?action=Goto&t
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