Volvo Penta AQ145A Workshop Manual page 67

Intermediate shaft (auxiliary camshaft)
Number of bearings ........................................................
Diameter bearing journal, forward ..................................
Diameter bearing journal, centre ....................................
Diameter bearing journal, rear ........................................
Radial clearance .............................................................
Axial clearance ...............................................................
Diameter of intermediate shaft bearings in block, front ...
centre ..............................................................................
rear ..............................................................................
REPLACEMENT
NOTE! New bearings must be line bored.
VALVES
Inlet Valve head diameter ...............................................
Stem diameter .................................................................
Valve seat angle .............................................................
Seat angle in cylinder head ............................................
Seatwidth in cylinder head ..............................................
Exhaust
Valve head diameter .......................................................
Stem diameter .................................................................
Seat valve angle .............................................................
Seat angle cylinder head ................................................
Seatwidth in cylinder head ..............................................
IMPORTANT! The valves have a stellite coating. Therefore, they are not to be cut or ground but only lapped into
the seat.
AQ145B
46.975–47 000 mm (1.8494–1.8504 in.)
43.025–43.050 mm (1.6939–1.6949 in.)
42.925–42.950 mm (1.6900–1.6909 in.)
0.020–0.075 mm (0.0008–0.0029 in.)
0.20–0.46 mm (0.0079–0.0181 in.)
47.020–47.050 mm (1.8511–1.8524 in.)
43.070–43.100 mm (1.6957–1.6969 in.)
42.970–43.000 mm (1.6917–1.6929 in.)
44.0 mm (1.7323 in.)
7.95–7.97 mm (0.3130–0.3138 in.)
1.3–1.9 mm (0.0512–0.0748 in.)
Inlet valves
35.0 mm (1.3780 in.)
7.945–7.960 mm (0.3128–0.3134 in.)
1.7–2.3 mm (0.0669–0.0906 in.)
Exhaust valves
AQ125B
3
44.5°
45°
44.5°
45°
65