Car engine overhaul Toyota Highlander 1 (XU20)

Engine Overhaul — Specifications
General information Engine displacement Four-cylinder 2AZ-FE - 2.36 l V6 1MZ FE — 3.0 l V6 3MZ-FE — 3.3 l Compression pressure in engine cylinders Four-cylinder engine - 14 kg/cm² V6 - 15 kg/cm² Minimum compression...

Engine Overhaul — General Information
This section of Chapter 2 includes general information and a description of diagnostic test procedures to determine the overall condition of the engine. You will find a wide range of information here, from tips on...

Checking oil pressure
1. Low engine oil pressure may be a sign that the engine needs a major overhaul. The low oil pressure warning light is not a test for the lubrication system. It only lights up when the oil pressure drops dangerously...

Checking the compression in the cylinders
1. Compression welding can provide a lot of information about the mechanical condition of the elements located in the upper zone of the engine (pistons, piston rings, valves, cylinder head gaskets). In particular, you...

Diagnostic tests using a vacuum gauge
A vacuum gauge provides easy-to-access but valuable information about what is going on in your engine. You can detect worn piston rings or cylinder bores, leaking head or intake manifold gaskets, improper throttle...

Engine restoration options
A car owner who does his own repairs faces a choice when buying a rebuilt engine. The main factors are cost, warranty, availability of spare parts and the time required for repair specialists to perform the work. The...

Engine Removal — Method and Precautions
If you have decided that the engine should be removed for a major or simply serious repair, some preliminary operations must be performed. Please read all removal and installation procedures carefully before you begin....

Engine — removal and installation
Note: Removing the engine on these vehicles is a more difficult job, especially for the DIY mechanic. Due to the design of the vehicle, the manufacturer requires the engine and transmission to be removed as a complete...

Engine disassembly sequence
1. It is much easier to disassemble and work with the engine if it is mounted on a mobile engine assembly/disassembly stand. Often such a stand can be rented from a tool rental point. Before securing it to the stand,...

Balance Shafts (Four Cylinder Engines) — Removal and Installation
Note: This procedure assumes that the engine has been removed from the vehicle and the engine faceplate, timing chain, and oil pan have been removed ( see chapter 2A ). Removal 1. The balance shafts are mounted in a...

Pistons and connecting rods — removal
Note: Before removing the pistons and connecting rods, remove the cylinder head, oil pan and upper (aluminum) section of the oil pan (see chapter 2A or 2B ). Also, on four-cylinder engines, remove the balancer shafts (...

Pistons and connecting rods — installation
25. Before installing the pistons together with the connecting rods, you should thoroughly clean the cylinder walls, make sure that there is a chamfer on the upper edge of each cylinder and that the crankshaft is in its...

Crankshaft — Removal
Note: The crankshaft can only be removed after the engine has been removed from the vehicle. This assumes that the faceplate, crankshaft pulley, timing belt/chain, oil pan, oil pump, oil filter and piston/connecting rod...

Crankshaft — installation
7. Installing the crankshaft is the first step in engine assembly. At this point, it is assumed that the cylinder block and crankshaft have been cleaned, inspected and repaired. 8. Position the cylinder block with the...

Engine assembly sequence
1. Before assembly, check that all necessary new spare parts, gaskets and seals are present, as well as the following items: general purpose metalworking tools, torque wrench with ½ inch socket, fresh motor oil,...

First start and running-in after repair
Caution: When starting the engine for the first time after repair, have a fire extinguisher on hand. 1. After installing the engine on the vehicle, check the engine oil and coolant levels. 2. Remove the spark plugs from...

Analysis of the condition of engine bearing liners
Foreign inclusions Babbitt insert with inclusions of mechanical rolling products. Microsection with inclusions Microsection with grooves. Copper-coated insert with grooves made of cast iron particles Aluminum insert...

General terms for engine overhaul
B Runout is an indicator of uneven shaft rotation. Backlash - The clearance between two elements. Usually related to gearing, it reflects how much one gear can move relative to the other with which it is engaged, if the...

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