EA086 or VW prechamber diesel engines
The Volkswagen EA086 prechamber diesel engine series was produced from 1978 to 2003 with working volumes of 1.5, 1.6, 1.7 and 1.9 liters, in atmospheric and turbocharged versions. It was on the basis of this line that all subsequent 4-cylinder diesel engines of the concern were created.
Diesel engines EA086 1.5-, 1.6-, 1.7-liter
In August 1978, a 1.5-liter CK diesel debuted on the first generation Passat. This power unit was based on the already massive gasoline engine of the EA827 series, and its block and piston group were naturally reinforced for an increased compression ratio.
Diesel fuel injection into the prechambers was carried out by a Bosch VE distribution pump, and the single camshaft was driven by a belt. All engines of this line were 8-valve. Hydraulic compensators in the units of this series appeared only after modernization in 1985.
Over time, the working volume increased and such diesel engines with a volume of 1.6 and 1.7 liters appeared:
1.5-1.7 D 8v (1588 cc, 76.5 x 86.4 mm), prechambers:
- CK (atmospheric, 50 hp / 80 Nm);
- CR (atmospheric, 54 hp / 102 Nm);
- CS (atmospheric, 50 hp / 103 Nm);
- JK (54 hp / 100 Nm) for Audi 80 B2 (81), VW Passat B2 (32);
- JP (54 hp / 100 Nm) for VW Caddy 1 (14), VW Golf 2 (1G);
- 1V (turbocharged, 60 hp / 110 Nm);
- CY (turbocharged, 70 hp / 133 Nm);
- JR (turbocharged, 70 hp / 133 Nm);
- JX (70 hp / 138 Nm) for VW Transporter T3 (25);
- MD (turbocharged, 70 hp / 133 Nm);
- MF (turbocharged, 70 hp / 133 Nm);
- RA (turbocharged, 80 hp / 155 Nm);
- SB (80 hp / 152 Nm) for Audi 80 B3 (8A), Audi 90 B3 (8A);
- KY (atmospheric, 57 hp / 103 Nm);
Diesel engines EA086 1.9-liter
In 1989, a 1.9-liter 1Y diesel engine appeared on the third generation Passat. By design, the new engine did not differ much from its predecessors, but it was with it that the particularly widespread use of heavy fuel units in passenger cars began.
The network has information about 5 options for 1.9-liter engines in atmospheric and turbo versions:
1.9 D 8v (1896 cc, 79.5 x 95.5 mm), prechambers:
- 1X (60 hp / 127 Nm) for VW Transporter T4 (7D);
- 1Y (64-68 hp / 124-127 Nm) for Audi 80 B3 (8A), Seat Cordoba 1 (6K);
- AEF (atmospheric, 64 hp / 125 Nm);
- AAZ (75 hp / 140-150 Nm) for Audi 80 B4 (8C), Seat Cordoba 1 (6K);
- ABL (68 hp / 140 Nm) for VW Transporter T4 (7D);
EA086 swirl chamber diesel engines were installed on the Caddy until the mid-2000s, but by the end of the 90s they were replaced by EA180 engines with direct injection on passenger cars.
Petrol engine EA086 2.0
On the basis of these diesels a petrol engine was also built: the 2.0-liter AAC of the Transporter T4. It kept the cast-iron block and the belt drive, but received a Digifant injection system:
2.0 MPI 8v (1968 cc, 81 x 95.5 mm), injector:
- AAC (84 hp / 159 Nm) for VW Transporter T4 (7D).
| Engine | Years | Volume | Power | Fuel | Timing | Oil | Lifespan |
|---|---|---|---|---|---|---|---|
| Volkswagen 1X | 1990–1995 | 1.9 L | 60 hp | diesel | belt | 4.8 L | ~550 000 km |
| Volkswagen 1Y | 1989–2003 | 1.9 L | 64–68 hp | diesel | belt | 4.3 L | ~500 000 km |
| Volkswagen AAC | 1990–2003 | 2.0 L | 84 hp | petrol | belt | 5.0 L | ~300 000 km |
| Volkswagen AAZ | 1991–1998 | 1.9 L | 75 hp | diesel, turbo | belt | 4.3 L | ~450 000 km |
| Volkswagen ABL | 1992–2003 | 1.9 L | 68 hp | diesel, turbo | belt | 4.8 L | ~475 000 km |
| Volkswagen JK | 1980–1989 | 1.6 L | 54 hp | diesel | belt | 4.0 L | ~400 000 km |
| Volkswagen JP | 1983–1992 | 1.6 L | 54 hp | diesel | belt | 4.0 L | ~380 000 km |
| Volkswagen JX | 1984–1992 | 1.6 L | 70 hp | diesel, turbo | belt | 4.0 L | ~350 000 km |
| Volkswagen SB | 1989–1993 | 1.6 L | 80 hp | diesel, turbo | belt | 4.0 L | ~330 000 km |
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