Vw Air Cooled Coil Wiring Diagram
The negative side of the coil goes to the distributor.
Vw air cooled coil wiring diagram. It is likely that your vw s wiring has been tampered with by different owners over the years. Vintage vw wiring diagrams repairing the wiring on your air cooled volkswagen can be one of the most complicated and challenging parts of the restoration process. A bad coil will show a higher reading then 3 4 5 ohms. Go turn on the ignition switch with a volt meter find the wire with power it goes to the plus side of the coil.
And how to read a wiring diagram. Look at the top of the coil closely by the 2 small terminals there will be plus and minus signs. Wire sizes on these and most other wiring diagrams are printed on the wire in mm 2 for americans who express wire sizes in gauges see this wire size conversion table. Then remove the nut that is on the coil place the ringed wire tip over the shaft and replace the nut snugly.
The tachometer will now show what rpm the engine is at once it is started. The plus sign is where the hot wires go. Classic vw bugs how to tuning air cooled beetle ghia bus carburetor adjustment duration. If the vehicle has been equipped with a points replacement unit electronic ignition the red wire from the side of the coil will go to the positive side of the coil and the black will go to the negative.
Aircooled vw wiring the most useful info. A reading of at least 3 4 5 ohms indicates a good coil. How to replace an ignition coil on an aircooled vw volkswagen beetle. This article includes the following subtopics.
15 typically will connect black wire is used for on ignition live circuits such things as the coil and windscreen wipers will connect to this 31 31b. It is necessary to attach a blue circular wire connector on the end of the wire. Wiring alternator and engine compartment discussion and diagrams wires and plugs ignition discussion wiring discussion. Place the red or black lead from the meter to the center of the coil secondary post and to either one of the terminals 1 or 15 on the coil.
The alternator and generator wiring circuit works on a reverse live circuit. The bulb itself is live taking a black off the board on all aircooled vw s so the circuit is earthing through the alternator so make sure your gearbox earth strap is in good order. If the coil needs replacing use a stock coil. Then wiring the coil choke and alternator.
A reading of 9 500 10 000 ohms sometimes less indicates a good coil.