Westerbeke 65A-FOUR - Page 61

ENGINE BODY
SERVICING SPECIFICATIONS
Item Factory Specification
Allowable Limit
Cylinder Head Surface Flatness 0.05 mm
-
0.0020 in.
Top Clearance
V3300-E2B
0.72
to 0.90 mm
-
0.0283 to 0.0354 in.
V3300-T -E2B 0.92101.10 mm
-
0.0362 to 0.0433 in.
Compression Pressure
V3300-E2B 4.32 MPa I 3.26 MPal
250 min"
1
(rpm)
250 min·
'
(rpm)
44 kgf/cm2 I 33.2 kgf/cm
2
I
250 min·
'
(rpm)
250 min·
'
(rpm)
626 psi
I
472 psi I
250 min·
'
(rpm) 250 min·
'
(rpm)
V3300-T-E2B 3.92 MPal 2.99 MPal
250 min·
'
(rpm)
250 min·
'
(rpm)
40 kgf/cm21 30.5 kgf/cm
2
I
250 min·
'
(rpm)
250 min-
1
(rpm)
569 psi
I
434 psi I
250 min·
'
(rpm)
250 min-
1
(rpm)
Variance Among Cylinders
-
10 % or less
Valve Seat Width IN. 2.12 mm
-
0.0835 in.
EX. 2.12 mm
-
0.0835 in.
Valve Seat Angle
IN.
1.047 rad
60
0
-
EX. 0.785 rad
45
0
-
Valve Face Angle
IN.
1.047 rad
60
0
-
EX.
0.785 rad
45
0 -
Valve Recessing
IN.
-0.2
to 0 mm
-0.4 mm
-0.079 to 0 in.
-0.0157 in.
EX. -0.05 to 0.15 mm
-0.4 mm
-0.0019 to 0.0059 in.
-0.0157 in.
Valve
Clearance (Cold) 0.23 to 0.27 mm
-
0.0091 to 0.0106 in.
Intake Valve Timing
Open 0.24 rad (14 0)
-
before T.D.C.
Close
0.61 rad (36
0
)
-
after B.D.C.
Exhaust Valve Timing
Open
0.79
rad (45
0
)
-
before B.D.C.
Close
0.29
rad (17 0)
-
altel" LQ,C_. __ .
"~-.
--
,."WESTERBEKE
, Engines & Generators
55