Valve Clearance; Injection Timing - Westerbeke 10.0 EGTD Operator's Manual

ENGINE ADJUSTMENTS
NOTE:
WESTERBEKE recommends that the following engine adjust-
ments be peiformed by a competent engine mechanic. The information
below is provided to assist the mechanic.
VALVE CLEARANCE ADJUSTMENT
Make the following adjustments when the engine is cold.
1.
Remove the cylinder head cover.
2. Prior to checking valve clearances, re-torque the cylinder
head hold down bolts. This is done by by slightly
loosening the bolt and then
re-ti~htening
the bolt to the
specified torque in the sequence shown below.
Tightening Torque 65
±
4 lb·ft (88
±
5 Nm)
FOUR CYLINDER
FRONT
THREE CYLINDER
3. Find top dead center compression position for No.1
piston by using the procedure that follows:
(a) Remove the glow plugs from the engine to ease the rota-
tion of the crankshaft manually to position the various
cylinders pistons at TDC (fop Dead Center.
TDC (TOP DEAD CENTER)
\
\
\
ROTATION
INJECTION TIMING MARKS (4)
23•- 21··19• TDC
.&
~
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EARLY MODELS
(b)
Rotate the crankshaft to position # 1 cylinder piston at
TDC. The TDC mark on the crank pulley should align
with the timing mark on the gear case. Adjust the valves
for cylinder #1.
(c) Rotate the crankshaft to position the next cylinder in the
engines firing order at TDC of its compression stroke.
Adjust the valves for that cylinder.
(d) Rotate the crankshaft to position the next cylinder in the
engines firing order at TDC. Adjust the cylinders valves
and repeat this procedure until
all
the cylinder valves are
adjusted.
4. Loosen the lock nut for the adjusting screw. With a feeler
gauge inserted between the rocker arm and valve cap,
adjust the valve clearance by turning the adjusting screw.
Make certain to adjust all the valves.
~...-."\!l~;;';l111_j
0.25mm
(0.0098 INCHES)
I
INTAKE & EXHAUST
~~--~~~~~~
5. Install the cylinder head cover.
Head Cover Bolt Tol'que 2 • 3 ft·lb (0.3 • 0.45 m·kg)
FIRING ORDER:
3 CYLINDER: 1-3·2
INJECTION TIMING MARKS (7)
4 CYLINDER: 1·3-4-2
21•- 20•-1g•. 18"-17°·16" TDC
\
TDC (TOP DEAD
CENTER)~
29
~
ROTATION
CURRENT MODELS