0
Futura FHD2/FMD2 E6
DIAGNOSIS
3 - 9
Components
2
DD1020_01
PISTON
Valve impressions on the piston base
A number of pistons have a valve mark
Impressions on the piston base
The piston base is cracked
Pitting on the piston base
Possible cause
Remedy
A broken valve spring.
Check the valve springs.
Possible cause
Remedy
The valve timing is incorrect.
Check the valve timing.
A distribution gear wheel is loose.
Check the distribution gear wheels.
The engine runs at a speed which is too high when all the
outlet valves have touched the pistons.
Check the gearbox’s safety device.
Check the engine protection data in the engine manage-
ment system.
Instruct the driver if the engine has had a too high engine
speed a number of times.
One or more teeth on the camshaft gear wheel are in the
wrong position.
Check the position of the camshaft gear wheel.
Possible cause
Remedy
During work, a foreign object has got into the combustion
chamber via the inlet/exhaust manifold.
Check the other pistons, the cylinder lining and the
valves for damage.
Check the inlet and outlet systems.
Possible cause
Remedy
The mixture is too rich.
Check the engine management system.
The wrong injection moment.
Check the engine management system.
Poor fuel distribution due to poorly operating injectors.
Check the operation of the injectors.
Fuel injection when the engine brake is applied.
Check the engine management system.
The piston base has touched the cylinder head; there are no cracks.
Possible cause
Remedy
The wrong cylinder head gasket has been fitted.
Check whether the correct cylinder head gasket has
been fitted.
Excessive play on the piston rod bearing or the piston pin
is worn.
Check the piston rod and the piston.
Summary of Contents for Futura FHD2 E6
Page 1: ...Futura FHD2 FMD2 E6 1525 DD1020_01 Main Group 0 WORKSHOP MANUAL...
Page 6: ...0 Futura FHD2 FMD2 E6 2 4 DD1020_01...
Page 7: ...0 Futura FHD2 FMD2 E6 GENERAL INFORMATION 0 DD1020_01 GENERAL INFORMATION...
Page 8: ...0 Futura FHD2 FMD2 E6 GENERAL INFORMATION 0 DD1020_01...
Page 23: ...0 Futura FHD2 FMD2 E6 SAFETY REGULATIONS 1 DD1020_01 SAFETY REGULATIONS...
Page 24: ...0 Futura FHD2 FMD2 E6 SAFETY REGULATIONS 1 DD1020_01...
Page 42: ...0 Futura FHD2 FMD2 E6 SAFETY REGULATIONS General information 1 18 1 DD1020_01...
Page 43: ...0 Futura FHD2 FMD2 E6 DIAGNOSIS 2 DD1020_01 DIAGNOSIS...
Page 44: ...0 Futura FHD2 FMD2 E6 DIAGNOSIS 2 DD1020_01...
Page 94: ...0 Futura FHD2 FMD2 E6 DIAGNOSIS Systems 2 26 2 DD1020_01...
Page 111: ...0 Futura FHD2 FMD2 E6 REPAIR GUIDELINES 3 DD1020_01 REPAIR GUIDELINES...
Page 112: ...0 Futura FHD2 FMD2 E6 REPAIR GUIDELINES 3 DD1020_01...
Page 122: ...0 Futura FHD2 FMD2 E6 REPAIR GUIDELINES General information 1 10 3 DD1020_01...
Page 132: ...0 Futura FHD2 FMD2 E6 LIQUID AND LUBRICANT GUIDELINES 4 DD1020_01...
Page 139: ...0 Futura FHD2 FMD2 E6 CLEANING INSTRUCTIONS 5 DD1020_01 CLEANING INSTRUCTIONS...
Page 140: ...0 Futura FHD2 FMD2 E6 CLEANING INSTRUCTIONS 5 DD1020_01...
Page 149: ...0 Futura FHD2 FMD2 E6 STORAGE AND PRESERVATION 6 DD1020_01 STORAGE AND PRESERVATION...
Page 150: ...0 Futura FHD2 FMD2 E6 STORAGE AND PRESERVATION 6 DD1020_01...
Page 155: ...0 Futura FHD2 FMD2 E6 PAINT TREATMENT 7 DD1020_01 PAINT TREATMENT...
Page 156: ...0 Futura FHD2 FMD2 E6 PAINT TREATMENT 7 DD1020_01...
Page 162: ...0 Futura FHD2 FMD2 E6 PAINT TREATMENT Paint treatment 1 6 7 DD1020_01...
Page 168: ...0 Futura FHD2 FMD2 E6 PAINT TREATMENT Anticorrosion antichip coating 2 6 7 DD1020_01...
Page 170: ...0 Futura FHD2 FMD2 E6 INSTRUCTIONS FOR JACKING UP AND SUPPORTING THE VEHICLE 8 DD1020_01...