Engine Mitsubishi 6A12

The Mitsubishi 6A12 2.0-liter V6 engine was assembled by a Japanese company from 1992 to 2010 and was first installed on a number of its mass models, and after 2000 only on Proton cars. This power unit existed in SOHC, DOHC, DOHC-MIVEC and twin-turbo modifications.

The 6A1 family also includes engines: 6A10, 6A11, 6A12TT, 6A13 and 6A13TT.

The engine was installed on:

  • Mitsubishi Diamante F10 in 1992 – 1994;
  • Mitsubishi FTO in 1994 – 2000;
  • Mitsubishi Galant E50 in 1992 – 1998;
  • Mitsubishi Galant EA in 1996 – 2000;
  • Proton Waja Chancellor in 2005 – 2010;
  • Proton Perdana in 1998 – 2010.

Specifications

Production years 1992-2010
Displacement, cc 1998
Fuel system injector
Power output, hp 145 – 150 (MPI SOHC)
170 – 180 (MPI DOHC)
200 (MPI DOHC-MIVEC)
Torque output, Nm 180 (MPI SOHC)
190 (MPI DOHC)
200 (MPI DOHC-MIVEC)
Cylinder block cast iron V6
Block head aluminum 24v
Cylinder bore, mm 78.4
Piston stroke, mm 69
Compression ratio 9.5 – 10.4 (MPI SOHC)
10.0 (MPI DOHC)
10.0 (MPI DOHC-MIVEC)
Hydraulic lifters yes
Timing drive belt
Phase regulator no (MPI SOHC)
no (MPI DOHC)
MIVEC (MPI DOHC-MIVEC)
Turbocharging no (except for 6A12TT, for which a separate article)
Recommended engine oil 5W-40
Engine oil capacity, liter 4.2
Fuel type 95
Euro standards EURO 2/3
Fuel consumption, L/100 km (for Mitsubishi FTO 1998)
— city
— highway
— combined
10.7
6.1
8.3
Engine lifespan, km ~250 000
Weight, kg 170

Disadvantages of the Mitsubishi 6A12 engine

  • A very dense layout of the engine compartment complicates the maintenance of the engine;
  • The timing belt is designed for 90,000 km, but it can burst earlier and bend the valves;
  • Quite often, the idle speed controller fails and the car simply starts to stall;
  • Due to poor oil, hydraulic lifters wear out quickly and begin to knock;
  • Even with a slight drop in oil pressure, the liners can turn here.

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