Suzuki G13B engine

The 1.3-liter Suzuki G13B gasoline engine was produced in Japan from 1986 to 1995 and was put in the charged versions of the Swift GTi and the similar Cultus GTi in the first two generations. Many people confuse this DOHC unit with its SOHC counterpart G13BB, which was installed on the Jimny.

Suzuki G13B specifications

Characteristics Reference
Exact volume 1298 cm³
Power system distributed injection
Engine power 100-115 hp
Torque 109-112 Nm
Cylinder block material aluminum, in-line R4
Material of block head aluminum, 16 valves
Cylinder diameter 74 mm
Piston stroke 75.5 mm
Compression ratio 10-11.5
Engine features DOHC (dual-shaft timing system)
Hydrocompensators no
Transmission timing belt
Fasoregulator no
Turbocharger no
Oil type 5W-30
Oil volume 3.2 liters
Environmental class Euro 2
Example service life 280,000 km
Engine weight 90 kg

Cars with engine

Suzuki G13B engine

The G13B engine was installed in Suzuki’s compact models, providing high power and good fuel economy. Here are some of the models on which it was fitted:

Vehicle Model Generation (code) Years of manufacture
Suzuki Cultus 1 (SA) 1986-1988
2 (SF) 1988-1994
Suzuki Swift 1 (AA) 1986-1989
2 (EA/MA) 1989-1995

Disadvantages and problems of the G13B engine

Like most aluminum engines, the G13B has its weaknesses:

  1. Engine overheating. Overheating can lead to cracks in the cylinder block cooling jacket or even the cylinder head (CVT).
  2. Exhaust manifold. It is prone to cracking during operation, but it can be welded.
  3. Ignition System. An outdated ignition system requires careful maintenance and can cause problems.
  4. Lack of hydrocompensators. The need for regular adjustment of valve clearances (once every 30,000 km).

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