Series 50G engines produced prior to July 1996 used remote mount ignition coils. This system consists of a coil bracket, two coil packs, an ignition wire harness, an ignition wire bracket, a waste spark harness, an ignition coil harness, and four spark plugs. Each coil mounts to coil bracket by three 1/4 20 x 2.5 in. screws. The coil bracket mounts to the cylinder head by two M12 x 1.75 x 30 metric bolts. See Figure
5. Right Coil Label
2. Lockwasher (1/4)
6. Ignition Coil Pack (2)
3. Ignition Coil Mounting Bracket
7. Bolts (1/4 20 x 2.5 in.)
4. Left Coil Label
8. Bolt (M12 x 1.75 x 30 in.)
Remote Mount Ignition Coils
Removal of Ignition Coil Bracket
Remove the ignition coil bracket as follows:
Unplug the ignition wire harness connectors from the ignition coil packs.
Unplug the waste wire harness connectors from the ignition coil packs.
Disconnect the ignition coil harness from the ignition coil packs.
Install the bracket to the cylinder head with two M12 x 1.75 x 30 mounting bolts. Torque to 100-126 Nm (74-93 lbft). See Figure
Press the ignition wire harness connectors on the coil towers corresponding to the cylinder positions indicated on the label. See Figure
1. Left Label
3. Right Label
2. Ignition Coil Packs
4. Coil Towers
Ignition Coil Pack Label Location
Ensure that each connector is fully seated on the coil tower.
Press the waste wire harness connectors on the coil towers corresponding to the letter "G" (indicating a ground position). Position the longest lead of the harness on the left most ground tower, and the remaining leads in order of their length.
Press the ignition coil harness into the connectors in the ignition coil packs.