Audi AMB Service Manual page 162

ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
Universal dial indicator holder VW387

Dial indicator

Work sequence
Fig. 224: Identifying Special Tool - VW 387 Installed
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Insert valve into valve guide. Valve stem end must be flush with guide. Due to slight difference in stem

diameters, ensure that only an intake valve is used in an intake guide and an exhaust valve in an exhaust
guide.
Measure lateral play.

Wear limit
Intake valve guide
0.80 mm
NOTE:
If wear limit is exceeded, repeat measurement with new valve. If wear limit

is again exceeded, replace valve guide.
If valve is to be replaced as part of a repair, use a new valve for

calculation.
Valve seats, refacing
NOTE:
If a good seating pattern cannot be obtained by lapping valve seats, they

must be refaced.
Special tools, testers and auxiliary items required
Depth gauge

Valve seat grinding tool

2005 Audi A4 Quattro
1:01:07 AM Page 150
Exhaust valve guide
0.80 mm