Specifications And Standards Used In Servicing - TOHATSU TLDI 40 Service Manual

2. Specifications and Standards Used in Servicing

Name of Part
Piston
Piston ring
Crankshaft
Connecting rod
Cylinder head
Cylinder
Engine block
Reed valve stopper
Reed valve
Ignition coil
ECU
Item to check
• Outer diameter
Measure at a point 12 mm (0.47 in)
above the lower edge of the piston skirt.
• Ring end gap
Note: If a ring gauge is unavailable,
measure the lower end of the
cylinder bore.
• Deflection
Measure with both ends supported on V
blocks.
• Deflection
• Mating surface
• Mating surface
• Cylinder liner scratches and wear
• Compression
Measure after warming:
Remove all 3 spark plugs.
Remove air injector and fuel injector
connectors.
• Lift height
• Fails to close, is worn or damaged
• Primary coil resistance (between black
& white and orange lines)
• Secondary coil resistance (between
high tension core and B line)
• Low-speed ESG trigger
• High-speed ESG trigger
• 67.96 mm (2.676 in)
• Top: 0.22 to 0.37 mm
(0.009 to 0.0145 in)
• Second and third: 0.33 to 0.48 mm
• 0.05 mm (0.002 in)
• 0.03 mm (0.0012 in) or less for
scratches
• 0.03 mm (0.0012 in) or less for
distortion
• 0.03 mm (0.0012 in) or less for
scratches
• 0.03 mm (0.0012 in) or less for
distortion
• 0.83 MPa (8.5 kg/cm
• 9.3 to 9.5 mm (0.366 to 0.374 in)
• 1.1Ω ±15% (Ambient temperature)
• 12.5 kΩ ±15% (Ambient temperature)
• Approx. 3,000 rpm
• Approx. 6,000 rpm
2-4
Standard values
(0.013 to 0.019 in)
2 , 120 psi)