Engine 4G64 under the hood

Engine Mitsubishi 4G64

2.4-liter Mitsubishi 4G64 (or G64B) gasoline engine has been in production since 1985. It is installed not only on a number of models of the Japanese concern, but also on cars from other manufacturers. This power unit was used for some time by Hyundai under the name G4JS.

Until 1997, this engine had only one camshaft and conventional multipoint fuel injection. But high technologies, namely GDI, touched in the end and him. Direct fuel injection plus an extra camshaft brought in an additional 37 horsepower and the inherent complications associated with the GDI system.

The 4G6 family also includes engines: 4G61, 4G62, 4G63, 4G63T, 4G67 and 4G69.

The engine was installed on:

  • Mitsubishi Eclipse 2G in 1997 – 1999; Eclipse 3G in 1999 – 2005;
  • Mitsubishi Delica III in 1988 – 1994; Delica IV in 1994 – 2007;
  • Mitsubishi Galant E10 in 1985 – 1989; Galant E30 in 1987 – 1993; Galant E50 in 1992 – 1998; Galant EA0 in 1996 – 2003;
  • Mitsubishi L200 K34 in 1986 – 1996; L200 K74 in 1996 – 2006; L200 KB4 in 2006 – 2014; L200 KK4 since 2015;
  • Mitsubishi Outlander CU0 in 2001 – 2004;
  • Mitsubishi Pajero V30 in 1991 – 1999;
  • Mitsubishi Space Wagon N30 in 1993 – 1997; Space Wagon N50 in 1997 – 2003.

Specifications

Production years since 1985
Displacement, cc 2351
Fuel system injector (MPFI SOHC 8V)
injector (MPFI SOHC 16V)
injector (MPFI DOHC 16V)
direct injection (GDI SOHC 16V)
Power output, hp 112 (MPFI SOHC 8V)
125 – 145 (MPFI SOHC 16V)
140 – 155 (MPFI DOHC 16V)
150 – 165 (GDI SOHC 16V)
Torque output, Nm 183 (MPFI SOHC 8V)
190 – 210 (MPFI SOHC 16V)
215 – 225 (MPFI DOHC 16V)
225 – 235 (GDI SOHC 16V)
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 86.5
Piston stroke, mm 100
Compression ratio 8.5 (MPFI SOHC 8V)
9.5 (MPFI SOHC 16V)
9.0 (MPFI DOHC 16V)
11.5 (GDI SOHC 16V)
Features no
Hydraulic lifters yes
Timing drive belt
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 4.0
Fuel type 92 (MPFI SOHC 8V)
92 (MPFI SOHC 16V)
92 (MPFI DOHC 16V)
95 (GDI SOHC 16V)
Euro standards EURO 2 (MPFI SOHC 8V)
EURO 2 (MPFI SOHC 16V)
EURO 2/3 (MPFI DOHC 16V)
EURO 4 (GDI SOHC 16V)
Fuel consumption, L/100 km (for Mitsubishi Outlander 2003)
— city
— highway
— combined
13.8
8.1
10.2
Engine lifespan, km ~330 000
Weight, kg 180

Disadvantages of the Mitsubishi 4G64 engine

  • All the main problems of this power unit are associated with poor or old lubrication.
  • Dirty oil here quickly leads to a wedge of the balance shafts and a break in their belt.
  • Following the balancer belt, the timing belt most often breaks and the valves bend.
  • For a relatively short time, hydraulic lifters, as well as engine mounts, serve here.
  • The reason for floating speed is usually a dirty throttle, injectors or idle speed controller.

Leave a Reply

Your email address will not be published. Required fields are marked *