Make / Brand:
Holden (Commodore)
Model Variant:
VZ and VE series (incl. wagon, sedan, ute variants where 3.6L Alloytec was fitted)
Production Years Covered:
2004–2013 (VZ 2004–2007, VE 2006–2013)
Engine:
3.6L Alloytec V6 (LY7 / LE0 / LWR)
Market:
Australian market (also exported as Pontiac G8, Chevrolet Lumina, etc.)
Target Audience:
DIY owners, mechanics, and workshops
Positioning:
Practical, workshop-grade repair reference for the 3.6L Alloytec engine
Focused Content:
Covers everything engine-related from full rebuild to timing setup
Convenience:
Instant digital access; no need to search scattered forum posts or incomplete snippets
Value:
High-value repair reference for maintenance, fault-finding, and repair work
Engine Service and Tuning:
Detailed procedures for engine service and tuning
Built for Practical Repairs:
Routine maintenance, troubleshooting, component replacement, specification checks, and deeper repair planning
Portable Reference:
Download and keep on computer, tablet, or phone
Engine:
3.6L Alloytec V6 (LY7 / LE0 / LWR) rebuild, timing, service, and repair
Transmission:
Not covered in detail (engine-focused manual)
Electrical:
Engine management and sensors only
Type:
Workshop manual (engine rebuild focus)
Delivery:
Instant download after purchase
Binding:
Digital (not physical)
Page Count:
N/A - not specified in source data
Engine Mechanical:
Cylinder block, cylinder heads, pistons, rings, bearings, crankshaft, camshafts, valves, timing chains
Engine Management:
ECU, sensors, actuators, wiring diagrams, diagnostic trouble codes
Fuel System:
Fuel pump, injectors, fuel rail, pressure testing
Ignition System:
Coil packs, spark plugs, ignition timing
Cooling System:
Water pump, thermostat, radiator, hoses, cooling fan
Lubrication System:
Oil pump, oil filter, oil cooler, galleries
Intake and Exhaust:
Air filter, throttle body, intake manifold, exhaust manifolds
Emissions Control:
PCV, EVAP, EGR (if applicable), catalytic converter
Engine Removal and Installation:
Step-by-step with torque specifications
Engine Disassembly:
Complete teardown for rebuild
Component Inspection and Measurement:
Clearances, wear limits, and tolerances
Engine Assembly:
Rebuild procedures with torque sequences
Timing Chain Setup:
Timing marks, chain installation, and tensioner adjustment
Cylinder Head Service:
Valve guide and seat reconditioning, valve clearance adjustment
Crankshaft and Bearing Installation:
Main and rod bearing clearances, thrust bearing
Piston and Ring Installation:
Ring end gap, piston orientation
Seal and Gasket Replacement:
All engine seals and gaskets
Diagnostic Procedures:
Symptom-based troubleshooting and DTC retrieval
Specifications:
Comprehensive torque specs, clearances, and wear limits
Diagrams:
Exploded views, timing marks, and wiring schematics
Diagnostic Flowcharts:
Logical troubleshooting for common issues
Special Tools:
Tool part numbers and usage instructions
Part Numbers:
OEM and aftermarket part numbers where applicable
Parts Diagrams:
Illustrated parts breakdowns for engine components
Replacement Guidelines:
When to replace vs. recondition
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Code:
Alloytec (LY7, LE0, LWR)
Configuration:
60-degree V6
Displacement:
3.6 L (3564 cc)
Bore x Stroke:
94.0 mm x 85.6 mm
Valvetrain:
DOHC, 4 valves per cylinder, variable valve timing
Firing Order:
1-2-3-4-5-6
Compression Ratio:
10.2:1 (LY7)
Fuel System:
Sequential multi-port fuel injection
Horsepower:
175–195 kW (235–261 hp) depending on variant
Torque:
320–340 Nm (236–251 lb-ft) depending on variant
Engine Oil Capacity:
6.5 L with filter (approx.)
Oil Viscosity:
5W-30 or 10W-30 (refer to owner's manual)
Wheelbase:
2915 mm (VZ sedan), 2915 mm (VE sedan)
Length:
4890 mm (VZ sedan), 4896 mm (VE sedan)
Width:
1842 mm (VZ), 1899 mm (VE)
Height:
1440 mm (VZ), 1474 mm (VE)
Curb Weight:
1600–1700 kg (approx., depending on variant)
Towing Capacity:
Up to 2100 kg (if properly equipped)
Engine Oil and Filter:
Every 10,000 km or 6 months (severe service: 5,000 km)
Spark Plugs:
Every 100,000 km
Timing Chain:
Inspect at 150,000 km, replace if worn
Coolant:
Every 100,000 km or 5 years
Air Filter:
Every 40,000 km
Engine Oil:
5W-30 or 10W-30, API SL or higher
Coolant:
Dex-Cool or equivalent (orange)
Transmission Fluid:
Dexron III or VI depending on transmission
Timing Chain Wear:
Early Alloytec engines prone to timing chain stretch; listen for rattle on startup
Oil Consumption:
Some engines may consume oil due to piston ring design
Coolant Leaks:
Water pump and thermostat housing are common leak points
PCV Valve:
Can clog, causing rough idle and oil leaks
Manufacturer:
Holden (General Motors)
Country of Origin:
Australia
VZ Series:
2004–2007, facelift of VY, introduced Alloytec V6
VE Series:
2006–2013, all-new platform, larger dimensions, improved safety
Significance:
Last Australian-built Commodore before transition to imported models
Assembly Plant:
Elizabeth, South Australia
Engine Plant:
Holden Engine Operations, Port Melbourne (for some variants)