Magnetic Tach Pickup Wiring Diagram
Check for at least 3 5 vac output at idle and 10 12 vac at hi rpm.
Magnetic tach pickup wiring diagram. Start engine and check gauge for proper operation of tachometer. The factory magnetic pickup no idea why it would be an aetna unit on the engine is dual output as noted one signal is for the tachometer and the other goes to the ecm that controls the grid air cold start heater system it s supposed to shut the heater off at 1400 1600 rpm or. Tach output magnetic pickup not used diode assembly white red from points or electronic ignition amplifier original coil wire pn 8910 diode assembly white note. Either connection can be considered positive or negative signals.
Limited warranty msd warrants this product to be free from defects in material and workmanship under its. Check resistance of magnetic pick up. Use the appropriate wire size. Provision has been made for finer adjustment if desired or synchronization of twin installations.
Typical wiring diagrams hookup for magnetic pickup. Use insulated crimp on solderless ring type wire terminals. To wire the magnetic sensor pickup use 18 awg 1 0mm twisted pair shielded cable. These connections are not polarized.
Here is how to wire the chinese digital tachometer. If separate splice in tach wire. Check for 6 7 vac at idle and 17 20 vac at hi rpm. Datcon 130 150 ohms should not be an open.
Msd magnetic pickup tach adapters maintain accurate tachometer readings. Here is how to wire the chinese digital tachometer. Hall effect sensor switch wiring diagram. Remove clean off magnetic pick up and re adjust pick up per manufacturer specification.
Calibration and adjustment the tachometer is factory calibrated to 3 full scale accuracy. The magnetic sensor pickup usually has two connections terminals or wires exiting from it. Find msd magnetic pickup tach adapters and get free shipping on orders over 49 at summit racing. Allow a few inches of extra wire service loops for ease of servicing.
Not sure if you have custom wiring so i do not have a solid answer. Connector at gauge to alternator or magnetic pick up. Figure 2 wiring with the diode assembly.