3 Series E30 325i (M20) SAL
11 12 Cylinder head with cover M20 B 25
Valve seat insert dia. - bore dia.
(dimension "D")
Intake
mm
43.15 g6 - 43.00 H7
Oversize 0.2
mm
43.35 g6 - 43.20 H7
Oversize 0.4
mm
43.55 g6 - 43.40 H7
Exhaust
mm
37.65 g6 - 37.50 H7
Oversize 0.2
mm
37.85 g6 - 37.70 H7
Oversize 0.4
mm
38.05 g6 - 37.90 H7
Height of valve seat race, depth of bore (dimension "H")
Standard
mm
7.3 h11 - 7.0
+0.2
-0.1
Oversize 0.2
mm
7.5 h11 - 7.2
+0.2
-0.1
Oversize 0.4
mm
7.7 h11 - 7.4
+0.2
-0.1
Installing temperature
Valve seat insert
°
C
-150
Cylinder head
°
C
+50
Valve seat inserts installed
flush with cylinder head plane
TD Cylinder head with cover, M20, B 25
BMW AG - TIS
26.01.2013 13:39
Issue status (12/2007) Valid only until next DVD is issued
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