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Toyota Hiace Van 1989-2004 factory workshop and repair manual download

- Important safety & preface
- Work only if you understand mechanical risks; a mistake on a timing belt can destroy an engine. Get the factory service manual for your exact Hiace engine (model/year/engine code) before you begin — it contains the critical alignment marks, bolt torques, and special-tool numbers you must follow.
- Disconnect the negative battery terminal before starting. Never rotate the engine with the spark plugs in while troubleshooting if you’re unsure — remove the accessory drive belt(s) and take safety precautions.
- If you are not comfortable with engine work, have a pro do it. If the engine is an interference design, incorrect timing can bend valves.

- Basic task overview (what replacing a timing belt means)
- Remove accessory belts and covers, set crank and camshafts to the specified timing marks, release and remove the old belt, replace the belt (and usually tensioner/idlers/water pump), install the new belt while maintaining correct alignment and tension, rotate the engine by hand to verify correct timing, reassemble and torque fasteners to spec.

- Tools you should have (detailed descriptions and how to use each)
- Good-quality socket set (metric; 1/4", 3/8", 1/2" drive) and combination wrench set
- Use the correct size socket/wrench to avoid rounding bolts. 3/8" drive for most work, 1/2" drive for stubborn pulleys. Use a short socket for tight spaces; long breaker-bar sockets for high torque.
- Breaker bar (long-handled)
- Provides leverage to break loose tight crank pulley or engine mount bolts. Fit the correct socket, place squarely on bolt, apply steady force — don’t jerk.
- Torque wrench (click-type, appropriate range 10–200 Nm or equivalent)
- Required to tighten fasteners to factory torque. Set the specified Nm/lb-ft and tighten until the wrench clicks. Do not guess torque.
- Ratchet and extensions, universal joint (flex) for awkward bolts
- Use extensions/universal joint to reach bolts behind obstructions. Keep sockets aligned to avoid slipping.
- Screwdrivers (flat and Phillips), pliers (needle-nose and slip-joint)
- For clips and hose clamps. Use the right tip size to avoid stripping screws.
- Pry bar / flat bar
- Gentle levering for removing covers, pulleys, or positioning belt. Use carefully to avoid bending components.
- Harmonic balancer / crank pulley holding tool or impact wrench (engine-specific)
- Needed to hold the crank pulley when loosening the center bolt. If you don’t have a holding tool you may use an impact wrench to remove the crank bolt (but an impact wrench can over-stress bolts and is not ideal). Factory manuals often list a specific holding tool.
- Camshaft locking tool or cam alignment pins (engine-specific; may be required)
- Locks camshafts in the correct position during belt removal/installation. If your engine requires it, you must use it or an equivalent locking method specified by the manual; otherwise timing can be lost.
- Jack and axle stands (or ramps)
- Safely lift and support the vehicle when access underneath is required. Use stands on solid level ground; never rely on a jack alone.
- Engine support bar or transmission jack (if engine mount removal is required)
- Supports the engine if you remove an engine mount to access the belt. Without engine support the engine can drop and damage components.
- Feeler gauge or belt tension gauge (if manual tensioner)
- Some tensioners are set by a deflection or by a specific torque/angle; measuring ensures correct tension. If your engine uses an automatic (spring) tensioner you may not need a gauge, but you must still follow the manual’s procedure.
- Rubber mallet
- For gentle persuasion when removing stuck covers or pulleys.
- Marker paint / scribe / chalk / paint pen
- Mark timing marks on pulleys and the belt before removal (backup visual reference).
- Clean rags, parts tray, penetrating oil (e.g., PB Blaster), anti-seize compound (for specific bolts, per manual)
- Keep fasteners organized and lubricate rusty bolts before removal.
- Replacement gasket sealant / threadlocker (if specified)
- Some bolts require threadlocker; check manual.

- Special or extra tools you may need and why
- Engine-specific cam/crank locking tools
- Why required: ensures cam and crank do not rotate relative to each other while the belt is off — critical for timing accuracy.
- Crankshaft pulley holding tool
- Why required: crank bolt is torqued very high; a holding tool prevents the crank from turning while loosening/tightening.
- Pulley puller (if harmonic balancer/pulley is seized)
- Why required: harmonic balancers can rust on; a puller removes them without damage.
- Service manual or factory workshop manual (highly recommended)
- Why required: contains exact alignment marks, torque specs, tensioner procedures unique to your engine.

- Parts commonly replaced when doing timing belt service (and why)
- Timing belt (required)
- Old belts age, crack, and can break; replace per interval (usually 60k–100k miles / 90k–160k km depending on engine/year). Always fit a new genuine or high-quality OEM-equivalent belt.
- Tensioner (recommended)
- The tensioner’s spring/roller wears; a failed tensioner will ruin a new belt. Replace with belt to ensure proper tensioning.
- Idler pulleys / rollers (recommended)
- Bearings wear and seize; replace while accessible to avoid future failure.
- Water pump (highly recommended)
- Often driven by or near the timing belt; replacing it while the belt is off saves labor later. Water pump bearings/seals can fail with age.
- Camshaft and crankshaft seals (recommended)
- If seals are leaking oil, replace them. Oil on a belt will quickly ruin it.
- Accessory belts (serpentine / alternator / A/C) if worn
- Replace if cracked/worn as part of a belt-service refresh.
- Fasteners (bolts/nuts) that are torque-to-yield or corroded (as needed)
- Some crank or cam bolts are one-time-use; the manual will say which must be replaced.

- General step-by-step procedure (high level, follow your manual for details, marks, torques)
- Prepare vehicle: park on level ground, set parking brake, disconnect battery negative, raise and support vehicle if needed, remove wheel and inner splash shield if it blocks access.
- Remove accessory drive belts and any components blocking access to the timing cover (air intake, alternator bracket, power steering lines, etc.). Keep note of routing.
- Remove upper and lower timing covers to expose timing belt and pulleys. Clean area of debris.
- Align crank and cam timing marks to the positions specified in the service manual. Use marker to mark the belt and pulleys before removal for reference.
- Lock cam(s) (if required) with the cam locking tool and support the engine if an engine mount is removed.
- Loosen tensioner, remove old belt, inspect all pulleys and tensioner for wear. Replace tensioner/idlers/water pump/seals as planned.
- Reinstall new water pump (if replacing) and tighten to specified torque; replace gasket/seal as required.
- Fit new belt following correct routing and alignment, ensuring no slack on the tensioned side. Set the tensioner per the manual (spring preload, bolt angle, or deflection measurement).
- Rotate the crankshaft by hand at least two full revolutions clockwise, then realign and re-check timing marks. Re-check tension and retorque bolts to spec.
- Reinstall covers, accessory belts, components, reconnect battery, and test-run engine. Listen for unusual noises and re-check for leaks.

- How to use a torque wrench, breaker bar, and holding tools (concise)
- Torque wrench: set required torque, snug fastener by hand first, use ratchet to snug, then apply torque wrench slowly until it clicks; stop immediately at the click. Recheck after a short drive.
- Breaker bar: use to break loose tight bolts. Place socket fully on bolt, use steady force. Avoid using breaker bar for final torque — use torque wrench.
- Holding tool: bolt into designated holes on pulley/harmonic balancer or engage teeth; follow the tool’s instructions to prevent crank rotation when removing/installing the crank bolt.

- Common pitfalls and warnings (short)
- Do not turn the engine backwards unless manual allows — backward rotation can slacken belt and change timing.
- Never loosen tensioner or remove belt without locking cams/crank where required — one tooth off on an interference engine can bend valves.
- Keep spark plugs in or out as specified by manual (many recommend they be installed to keep compression while turning engine by hand; others recommend removed to make turning easier). Follow manual.
- Do not reuse worn or cracked belts, tensioners, or idlers.
- If you cannot obtain or follow exact marks/torques, stop and get professional help.

- Final checks after reassembly
- Rotate engine by hand 2–4 full turns and confirm all timing marks return to specification and there is no interference or unusual resistance.
- Start engine and listen for abnormal noises; check for coolant/oil leaks if water pump or seals were replaced.
- Re-torque accessible fasteners after initial run if manual suggests doing so.

- Recommended parts list to buy before starting (bring to the job)
- OEM or high-quality aftermarket timing belt kit (belt + tensioner + idler(s))
- Water pump (matching engine, include gasket/seal)
- Camshaft and crankshaft seals (if leaking or recommended)
- Accessory belts if worn
- Appropriate bolts if manual specifies single-use items (crank bolt etc.)
- Threadlocker/anti-seize as called out by manual

- Quick note on parts sourcing and quality
- Use OEM or respected aftermarket timing kit brands; cheap belts/tensioners/pumps increase failure risk. Keep receipts and part numbers.

- Closing (brief)
- Follow the factory manual for exact alignment marks and torque values; if special locking/holding tools are required by your engine, rent or buy them — they are required to safely and correctly set timing. If anything is unclear, have a professional perform the job.


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