7.0 Kw Bcg & Bcga; Engine Service Specifications - Westerbeke 7.0 KW BGC -60Hz Technical Manual

7.0 KW BCG & BCGA
ENGINE SERVICE SPECIFICATIONS
NOTE: All dimensions and specifications contained in this section are given in inches then
millimeters unless otherwise stated. For example, 0.002 (0.5 mm).
Cylinder
Head
Lower gasket surface distortion
Lower surface grinding tolerance
Manifold gasket surface distortion
Valve Seat
Width (IN
& EX)
Angle (IN)
(OUT)
Recession (IN)
(EX)
Valve Guide Bush
Inner diameter (IN
& EX)
Projection height
Valves
Seat width (IN
& EX)
Seat angle
27
Specified Value
9.9370
(100 mm)
0.0472 - 0.0630
(1.2 -1.6 mm)
30
0 -
45
0 -
70
0
25
0 -
45
0 -
70
0
0.0787 - 0.0984
(2.0 - 2.5 mm)
0.1437 - 0.1634
(3.65 - 4.15 mm)
0.2756 - 0.2764
(7.000 - 7.020 mm)
0.5984 - 0.6220
(15.2 - 15.8 mm)
0.0472 - 0.0630
(1.2 -1.6 mm)
44
0
30'
Allowable Umit
0.0039
(0.10 mm)
3.9291
(99.8 mm)
0.0039
(0.10 mm)
0.0906
(2.3 mm)
0.1181
(3.0 mm)
0.1831
(4.65 mm)
0.2n4
(7.045 mm)
0.0906
(2.3 mm)
Westerbeke Generators