7A-FE Engine

The A-series engines, released by Toyota Motor Corporation, are inline-four internal combustion engines, varying from 1.3 L to 1.8 L. These engines have engine blocks made of cast iron and cylinder heads, which are made of aluminum.

Toyota launched the manufacturing of the A-series engines in the end of 1970s, trying to find a substitution for the K-series engines for its new Tercel model. The company aspired to build an engine with a modern design and, simultaneously, great fuel efficiency, high performance and minimal emissions. The A-series consists of DOHC (one of the debut mass-production engines of the Japanese manufacturers), 4-valve-per-cylinder, the 4A-GE engines as well as the first modifications of 5-valve-per-cylinder engines.

Toyota released a single 7A-FE modification of the engine with the capacity from 105 hp to 120 hp. However, the 7A-FE Lean Burn engine, the least powerful one, turned out to be rather problematic and its servicing is rather expensive. So, it’s not the best choice.

The firing order of the 7A-FE engine is 1-3-4-2.

Simultaneously with 7A engines, the brand also manufactured the newer variants of 4A and 5A engines.

The 7A-FE features a toothed timing belt, which needs to be changed after the car runs 60,000 miles/100, 000 kilometers.

In 1998, Toyota started to produce the 1ZZ engine instead of the 7A-FE one.

7AFE SPECS

Manufacturer Kamigo Plant
Shimoyama Plant
Deeside Engine Plant
North Plant
Tianjin FAW Toyota Engine’s Plant No. 1
Also called Toyota 7A
Production 1990-2002
Cylinder block alloy Cast-iron
Configuration Straight-4
Valvetrain DOHC
4 valves per cylinder
Piston stroke, mm (inch) 85.5 (3.37)
Cylinder bore, mm (inch) 81 (3.19)
Compression ratio 9.5
Displacement 1762 cc (107.5 cu in)
Power output 78 kW (105 HP) at 5,200 rpm
82 kW (110 HP) at 5,600 rpm
86 kW (115 HP) at 5,600 rpm
89 kW (120 HP) at 6,000 rpm
Torque output 159 Nm (117 lb·ft) at 2,800 rpm
156 Nm (115 lb·ft) at 2,800 rpm
149 Nm (110 lb·ft) at 2,800 rpm
157 Nm (116 lb·ft) at 4,400 rpm
Redline
HP per liter 59.6
62.4
65.3
68.1
Fuel type Gasoline
7A-FE Weight, kg (lbs)
Fuel consumption, L/100 km (mpg)
-City
-Highway
-Combined
for Corona T210
7.2 (32)
4.2 (56)
5.3 (44)
Turbocharger  Naturally aspirated
7A-FE Oil consumption, L/1000 km
(qt. per miles)
up to 1.0
(1 qt. per 750 miles)
Recommended engine oil 5W-30
10W-30
15W-40
20W-50
Engine oil capacity, L (qt.) 4.7 (5.0)
Oil change interval, km (miles) 5,000-10,000
(3,000-6,000)
Normal engine operating temperature, °C (F)
Engine lifespan, km (miles)
-Official information
-Real

300,000+ (185,000+)



Toyota_7A-FE_engine

7AFE Engine Applications

  • AT211 Avensis 1997–2000 (Europe only)
  • AT191 Caldina 1996–1997 (Japan only)
  • AT211 Caldina 1997–2001 (Japan only)
  • AT191 Carina 1994–1996 (Japan only)
  • AT211 Carina 1996–2001 (Japan only)
  • AT191 Carina E 1994–1997 (Europe only)
  • AT200 Celica 1993–1999 (excluding Japan)
  • AE92 Corolla/Conquest September 1993–circa 1998 (South Africa)
  • AE93 Corolla 1990–1992 (Australia only)
  • AE102/103 Corolla 1992–1998 (excluding Japan)
  • AE102 Corolla/Prizm 1993–1997 (North America)
  • AE111 Corolla ±1997–±2000 (South Africa)
  • AE112/115 Corolla 1997–2002 (excluding Japan)
  • AE115 Corolla Spacio 1997–2001 (Japan only)
  • AT191 Corona 1994–1997 (excludingJapan)
  • AT211 Corona 1996–2001 (Japan only)
  • AE115 Sprinter Carib 1995–2001 (Japan only)

7A-FE ENGINE PROBLEMS

  1. High fuel consumption. In the majority of cases, that problem has to do with the oxygen sensor, which we recommend to change. If you notice soot on the spark plugs, black smoke from the exhaust pipe or high vibrations at idle running, it’s necessary to examine the MAP.
  2. High fuel consumption, accompanied by vibrations. It means that the injectors must be cleaned.
  3. The troubles with rpm, hanging-up and fast rotations can be solved after the examination of the idle air control valve, throttle position sensor and cleaning of the throttle body.
  4. If the engine fails to start, the problem can be in the temperature of the engine coolant. So, you need to check it.
  5. In case of the rough idle, you need to make sure that the throttle body and idle air control valve are clean. Also, it’s recommended to examine the spark plugs and injectors with the PCV valve.
  6. If the engine suddenly stops, it’s necessary to have a look at the fuel filter as well as fuel pump and ignition distributor.
  7. If you see that the engine starts to consume oil, the engine needs big repair because of getting old. You need to acquire valve stem seals as well as scraper rings.
  8. If the engine is knocking, you need to regulate the valves. Also, it can be a wrist pin knock.



Toyota Corolla 7afe 4afe Engine rebuild Install pistons, cylinder head, set engine timing

 

Camshaft replace Toyota 4AFE and 7AFE engines

 

1996 7afe 4afe Toyota Corolla Engine rebuild 2015 Finished!

https://www.youtube.com/watch?v=AapeEb4qnuQ

Written by Dan Hoffman

Dan Hoffman

Dan is a co-founder of Engineswork. He knows everything about internal combustion engines. Ask your questions in comments down below this article – he will be glad to help you anytime.

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