1016 cylinder head/s – valve seats

Make

Alfa Romeo

Model

147 Factory Service Manual

Year

2000–2004

Section

10 engine › 1016 cylinder head/s – valve seats

Manufacturing data and tolerances1016 cylinder head/s – valve seats

1016 CYLINDER HEAD/S – VALVE SEATS

Angle "b" contact band with valves (-)		Validity
90˚ ± 10'		1.6 TS 2.0 TS
Angle "c" valve seat lower band (-)		Validity
30˚		1.6 TS 2.0 TS
Angle"a" valve seat upper band (-)		Validity
150˚		1.6 TS 2.0 TS
Contact band angle with inlet valve ()		Validity
45˚ ± 20'		1.9 JTD 16V
Contact band angle with valve (-)		Validity
89˚40' - 90˚20'		1.9 JTD 8V
Outer diameter (mm)			Validity
Exhaust	Inlet
27.491 ÷ 27.512	29.489 ÷ 29.514		1.9 JTD 16V
Outer diameter (mm)			Validity
Exhaust	Inlet
35.142 - 35.157	36.135 - 36.150		1.9 JTD 8V
Valve seat outer diameter (mm)			Validity
Exhaust	Intake
29.142 ÷ 29.157	35.135 ÷ 35.150		1.6 TS 2.0 TS
Width "L" contact band with valves (mm)			Validity
Exhaust	Intake
1.0	0.8		1.6 TS 2.0 TS

Contact band angle with valves (-)		Validity
90˚ ± 20'		3.2 V6

03 General