Compression Pressure
Remove electrical wire from fuel shut-off solenoid on injection pump. Remove injector pipes, injector and heat shields. Insert oil heat shield into head. Insert adapter (US 1110/2A on Turbo models, VW 1323/2 on all others) and compression tester. Check compression while cranking engine through at least 6 strokes.
COMPRESSION SPECIFICATIONS
| Compression Ratio | 23.0:1 | |
| Compression Pressure | ||
| Normal (New Engine) | 406-493 psi (29-34 kg/cm2 ) | |
| Minimum | 400-406 psi (28-29 kg/cm2 ) | |
| Max. Variation Between Cylinders | 73 psi (5 kg/cm2 ) | |