Technical data

Valves
Valve clearance (IN & EX)
Valve head dia. (IN)
(EX)
Overall length
StemO.D.
Stem to guide clearance (IN)
(EX)
Valve face angle
Valve head thickness (margin width)
Valve head sinkage
(From cylinder head to bottom face)
Valve Spring
Free length
Preload/installed length
Squareness
Westerbeke Engines
Specified Value/Standard
16
0.010 (cold)
(0.25 mm)
1.051
(26.7 mm)
0.972
(24.7 mm)
3.701
(94 mm)
0.260
(6.6 mm)
0.039
(1.0 mm)
0.020
0.5mm
1.595
(40.5 mm)
13.095 Ibs/1.398 in
(5.94 kg/35.5 mm)
32.716 Ibs/1.1 02 in
(14.84 kg/28 mm)
Repair Limit
1.051 (Service limit)
(26.7 mm)
0.972 (Service limit)
(24.7 mm)
1.547
(39.3 mm)