Filed under: Car Mechanics
The Toyota K series was a straight-4 engine produced from 1966 through 1988. It was a 2-valve pushrod engine design, a rarity for the company.
All K series are non-crossflow engines — the inlet and exhaust manifolds are on the same side. They have cast iron blocks and aluminium alloy heads, with a crankshaft supported by 5 main bearings. With the exception of the 5K, all K engines have solid lifters and 1.5 ratio rockers with an adjustment thread for tappet clearance.
K
The 8-valve OHV 1.1 L (1077 cc) K was produced from 1966 through 1969. A similar K-B was produced from 1968 through 1969, the -B designates twin carburetors.
Applications:
- Toyota Corolla KE1x
2K
The 8-valve OHV 1.0 L (993 cc) 2K was produced from 1969 through 1988. Output in 1984 was 45 hp (34 kW) at 5600 RPM and 49 ft·lbf (66 N·m) at 4000 RPM.
Applications:
- Toyota Publica
- Toyota Starlet
- Toyota 1000
3K
The 8-valve OHV 1.2 L (1166 cc) 3K was produced from 1969 through 1977. Cylinder bore was 75 mm (2.95 in) and stroke was 66 mm (2.6 in). 3K 68ps at 6000rpm. 3K-BR 74ps at 6600rpm. 3K-B 77ps at 6600rpm and 74ps at 6600rpm (compression ratio of 10 and 9).
The 1969 through 1975 3K-B was a twin-carb version. The California-spec 3K-C (1977-1979) and 3K-H were other available versions.
Applications:
- Toyota Corolla
- Toyota Starlet
- Daihatsu Charmant
- Toyota Kijang/First Generation Toyota Tamaraw
In the Philippines, these engines are sometimes used on locally assembled owner-type jeeps.
4K
The 1.3 L (1290 cc) 4K was produced from 1978 through 1989. Cylinder bore was 75 mm (2.95 in) and stroke was 73 mm (2.87 in). It was a 8-valve OHV engine.
In 1980, the 4K produced 60 hp (45 kW) at RPM. From 1982 through 1984, output was 65 hp (48 kW) at 5600 RPM and 72 ft·lbf (97 N·m) at 3600 RPM.
The 1981 and 1982 California-spec 4K-C produced 58 hp (43 kW) at 5200 RPM and 67 ft.lbf (90 Nm) at 3600 RPM. Torque was up to 74 ft·lbf (100 N·m) at 3400 RPM for the fuel injected 1982 through 1984 4K-E. The Japan-spec 4K-U produced 74 hp (55 kW) at 5600 RPM and 78 ft·lbf (105 N·m) at 3600 RPM in 1982.
Applications:
- Toyota Corolla
- Toyota Starlet
- Toyota Liteace
- Daihatsu Charmant
- Toyota Kijang/Second Generation Toyota Tamaraw
In the Philippines, these engines are also used on locally assembled owner-type jeeps.
5K
The 1.5 L (1496 cc) 5K was produced from 1983 through 1996. Unlike previous K motors, it used hydraulic lifters.
The 5K engine has a displacement of 1486 cc, bore is 80,5 mm, stroke is 73.0 mm.
Applications:
- Toyota Corolla KE74 (Japanese Station Wagon)
- Toyota Hiace KR Van
- Toyota Liteace KM36 Van
- Toyota Kijang
7K
The 1.8 L (1781 cc) 7K was produced in 1983. Cylinder bore was 80.5 mm (3.17 in) and stroke was 87.5 mm (3.44 in). Output was 80 hp (60 kW) at 4600 RPM and 103 ft·lbf (139 N·m) at 2800 Was available with a 5 speed manual & 4 speed automatic transmission. Available in both fuel injected and carburetted configurations. The 7K produces much more power and torque compared to the other K engines however it is a lot less ‘rev happy’ due to having such a large stroke.
Applications:
- Toyota Kijang/Toyota Revo
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