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SERVICE STANDARDSJREPAIR LlMITSIMAINTENANCE
Part Name
Check/lnspect
Standard Value/Malntenance
RepaIr LImit
Engine Block
With de-compressor
0.4±0.1 MPa (5±1 kg/cm',71 psi)
Pay heed to pressure leak in compression
from lhe rolation, sliding and sealing parts.
Without de-compressor
0.93±0.1 MPa (9.5±1 kg/cm', 135 psi)
(rocker arm in EX side is removed)
Carburetor
• Setting mark
3H8A
• ThrottleNenturi bore
23/11.5mm
• Main jet (MJ)
#68
• Main air jet (MAJ)
#135
• Inner diameter of main nozzle
2.2mm
• Slow jet (SJ)
#42
• Slow air jet (SAJ)
#115
• Opening angle of throttle (at W.O.T.)
80'
• Pilot screw (PS) - Blind
1-3/4
• Fuell"el (from flange surtace
14mm (0.55in)
to float bottom
• Resistance of PTC' heater for
20n
auto-by'tarter at 20' C (68' F)
(·PTC:
positive temperature coefficient
thermistor)
• Idle speed (clutch in)
900 rpm
Oil Pump
1) Inner diameter of pump body
1) 29.04mm (1.143in) or more
2) Clearance between outer rotor
2) 0.36mm (0.014in) or more
and body
3) Height of outer rotor
3) 14.96mm (0.589in) or less
4) Clearance between rotor and
4) O.llmm (0.0043In) or more
body side
(incl. wear of the pump cover)
5) Clearance between outer rotor
5) 0.16mm (0.006in) or more
and inner rotor
...v: WESTERBEKE
Engines
&
Generators
14
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