Tachometer Calibration
NOTE:
DO NOT reverse polarity when installing tachometer. Damage to diode and transistor may result.
Connect a calibrated, reliable tach-dwell meter to vehicle ignition system. Run engine at varying RPM. If comparison between tach-dwell meter and vehicle tachometer readings do not fall in the standard range of permissible variation, replace vehicle tachometer. For allowable variation, see appropriate TACHOMETER ALLOWABLE VARIATION table.
TACHOMETER ALLOWABLE VARIATION(ECLIPSE, GALANT & MIRAGE)
| Engine RPM | RPM Range (1) Type 1 Tachometer | RPM Range (2) Type 2 Tachometer | ||||
|---|---|---|---|---|---|---|
| 700 | 600-800 | 600-800 | ||||
| 3000 | 2850-3150 | 2900-3225 | ||||
| 5000 | 4750-5250 | 4900-5325 | ||||
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TACHOMETER ALLOWABLE VARIATION(MONTERO, P/U, SIGMA & VAN/WAGON)
| Engine RPM | Tachometer RPM Range |
|---|---|
| 1000 | 900-1100 |
| 3000 | 2850-3150 |
| 5000 | 4750-5250 |
| 6000 | 5700-6300 |