Porsche 914 Tune Up Specifications
Valve Clearance with engine cold
| Description | 1700cc 4-Cylinder | 1800cc 4-Cylinder | 2000cc 4-Cylinder |
2000cc 6-Cylinder
|
| Intake | 0.006 in. (0.15mm) | 0.006 in. (0.15mm) | 0.006 in. (0.15mm) |
0.0039 in. (0.1mm)
|
| Exhaust | 0.006 in. (0.15mm) | 0.006 in. (0.15mm) | 0.006 in. (0.15mm) |
0.0039 in. (0.1mm)
|
Ignition Timing (Vacum Line(s) Disconnected)
| 1700cc 4-Cylinder | 1800cc 4-Cylinder | 2000cc 4-Cylinder |
2000cc 6-Cylinder
|
| 27 BTDC @ 3,500 rpm | 7.5 BTDC @ 850 rpm | 27 BTDC @ 3,500 rpm |
35 BTDC @ 6,000 rpm
|
Spark Plugs
| 1700cc 4-Cylinder | 1800cc 4-Cylinder | 2000cc 4-Cylinder |
2000cc 6-Cylinder
|
| Bosch W175T2 | Bosch W175T2 | Bosch W175T2 |
Bosch W230T30
|
| Autolite AG3 | Autolite AG3 | Autolite AG3 |
Autolite AG12
|
| Autolite AG3X | Autolite AG3X | Autolite AG3X | – |
| AC 43XL | AC 43XL | AC 43XL | AC 41XLS |
| AC S43XL | AC S43XL | AC S43XL | – |
| Champion N6 | Champion N6 | Champion N6 | – |
| Champion N7 | Champion N7 | Champion N7 |
Champion 7Y
|
| NGK B-6ES | NGK B-6ES | NGK B-6ES | NGK Bp-7ES |
| 0.028 in. (0.7mm) | 0.028 in. (0.7mm) | 0.028 in. (0.7mm) |
0.024 in. (0.55mm)
|
Breaker Point Gap
| 1700cc 4-Cylinder | 1800cc 4-Cylinder | 2000cc 4-Cylinder |
2000cc 6-Cylinder
|
| 0.016 in. (0.4mm) | 0.016 in. (0.4mm) | 0.016 in. (0.4mm) |
0.016 in. (0.4mm)
|
Dwell Angle
| 1700cc 4-Cylinder | 1800cc 4-Cylinder | 2000cc 4-Cylinder |
2000cc 6-Cylinder
|
| 47 +-3 | 47 +-3 | 47 +-3 | 40 +-3 |
Firing Order
| 1700cc 4-Cylinder | 1800cc 4-Cylinder | 2000cc 4-Cylinder |
2000cc 6-Cylinder
|
| 1-4-3-2 | 1-4-3-2 | 1-4-3-2 | 1-6-2-4-3-5 |
Idle Speed (Add 100 rpm for Sportomatic Models)
| 1700cc 4-Cylinder | 1800cc 4-Cylinder | 2000cc 4-Cylinder |
2000cc 6-Cylinder
|
| 850-900 rpm | 850-900 rpm | 850-900 rpm | 900-950 rpm |
