Toyota Engine 5VZ - FE Repair Manual

 Toyota Engine 5VZ - FE Repair Manual

5VZ–FE ENGINE

1. Description

The 5VZ–FE engine, newly developed to replace the 3VZ–E engine, is a V6, 3.4–liter, 24–valve DOHC engine based on the acclaimed 3VZ–E engine. It has realized both high performance and fuel economy through an increased total cylinder displacement, the adoption of a valve mechanism which is similar to that of the 3VZ–FE engine on the ’92 Camry, and an engine control system which is similar to that of the 1MZ–FE engine on the ’94 Camry.

Engine Proper

Cylinder Head

Along with the increase in the cylinder displacement from the 3VZ–E to the 5VZ–FE engine, the diameter of the intake and exhaust ports has been increased.

Piston

The semi–floating type piston pin is replaced by the full–floating type to match the higher power output from the increased piston displacement.

Valve Mechanism

General

The construction and operation of the valve mechanisms of the 5VZ–FE engine are basically the same as those of the 3VZ–FE engine in the ’92 Camry, except for the changes listed below.

Camshafts

The camshaft drive gear and sub–gear are thinner and the snap ring for the drive gear has been discontinued for weight reduction.

Timing Pulleys and Belt

The timing belt tooth configuration has been designed to help reduce noise and to enable the belt to transmit power under high load factors.

The timing rotor for the crankshaft position sensor has been integrated into the crankshaft

pulley.

The timing rotor for the camshaft position sensor has been integrated into the right bank camshaft timing pulley.