1A-10 ENGINE MECHANICAL (4HK1, 6HK1)
Compression gauge: 5-8840-2675-0 (J-26999-12)
Compression gauge adapter
4HK1: EN-46722
6HK1: 380.002.627
• Turn on the starter to inspect compression
pressure.
4HK1
6HK1
• Measure each cylinder one by one.
Caution:
To keep engine speed at 200 rpm or more, use fully
charged batteries.
• Remove a compression gauge of the special tool.
• Remove a negative terminal of the batteries.
• Install a harness connector for the fuel injector built
on the lower head cover.
• Install all the glow plugs.
• Install the negative terminal of the battery.
Compression pressure
MPa (psi) / 200 rpm
Standard
2.84 – 3.24 (412 – 469)
Limit
1.96 (284)
Differences among
the cylinders
294 kPa (43)
Compression pressure
MPa (psi) / 200 rpm
Standard
3.24 (469)
Limit
2.26 (327)
Differences among
the cylinders
294 kPa (43)
Tightening torque: 20 N
⋅
m (2.0 kg
⋅
m/15 lb ft)