Inspection Items; Inspection Of Compression Pressure; Inspection Of Oil Pressure; Inspection Of Valve Clearance - TOHATSU MFS 60A Service Manual

Power Unit

2. Inspection Items

1) Inspection of Compression Pressure

1. Refer to "Inspection of Compression Pressure" in chapter 3.
Compression Pressure (Reference) :
1.5 MPa (218 PSI) [ 15.3 kgf/cm

2) Inspection of Oil Pressure

1. Spread rag below oil pressure switch.
2. Remove oil pressure switch and connect oil pressure gauge
1 to switch hole.
Use commercially available oil pressure gauge
(Thread spec : R 1/8).
Use the instrument applicable to
1 Mpa (142 PSI) [ 10 kgf/cm
3. Start engine and run 5 minutes to warm up at idling
revolution speed.
4. Measure hydraulic pressure. If the pressure is below
specified value, check oil pump for oil leak, and oil strainer
and plunger.
Hydraulic Pressure (Reference) : Oil Temperature 60°(140°F)
0.14 MPa (21 PSI) [ 1.5 kgf/cm
0.29 MPa (43 PSI) [ 3.0 kgf/cm

3) Inspection of Valve Clearance

1. Refer to "Inspection of Valve Clearance" in chapter 3.
Valve Clearance (when engine is cold)
(IN) Intake valve :
0.20 – 0.25 mm (0.008 – 0.010 in)
(EX) Exhaust valve :
0.30 – 0.35 mm (0.012 – 0.014 in)

4) Removing Power Unit

1. Remove flywheel cover.
2. Loosen flywheel nut.
Loosen flywheel nut before removing power unit
to make the work easier.
å Flywheel Holder :
Commercially available item
∫ Flywheel puller kit :
P/N. 3T1-72211-0
Apply forces to tools toward directions as shown,
and perform work taking care not to allow flywheel
holder to remove.
5-18
2 ] ±10 %
].
2
2 ] or higher at 850 r/min
] or higher at 5750 r/min
2
CAUTION
1
å
∫
4st 60 2019