Installation (Pickup & 4Runner 3VZ-E)
Install new "O" ring into housing. Coat "O" ring with oil. Align protrusion on top of drive gear teeth with groove on housing. Insert distributor with housing groove aligned with groove on No. 4 camshaft bearing cap. See Fig 1. Install hold-down bolt, distributor cap and spark plug wires. Set timing and tighten hold-down bolt.