Parts for your 2000 Daihatsu Gran move-Head gasket

2000 Daihatsu Gran Move Head Gasket — What It Does and When To Replace It

The 2000 Daihatsu Gran Move (G3 series, often known as the Pyzar in some markets) absolutely uses a head gasket. Daihatsu’s factory workshop manual for the G300/G301/G303 series details the cylinder head gasket removal, inspection, and re‑fit procedure with bolt torque/angle steps, and the Daihatsu Electronic Parts Catalogue lists a “gasket, cylinder head” for the Gran Move’s inline‑four petrol engines used for that model year. Independent data services (e.g., Autodata) also publish torque sequences and service notes specific to the Gran Move head gasket. So yes — it’s a normal, serviceable part on this vehicle.

On the 2000 Gran Move, the head gasket seals the aluminium cylinder head to the engine block, keeping combustion pressure in while keeping engine oil and coolant in their own lanes. It’s the quiet hero that stops coolant sneaking into the bores and oil galleries, and prevents compression leaks that rob power and efficiency. Because these engines run alloy heads, any overheat can stress the gasket, so keeping the cooling system in top nick is the best prevention.

As part of routine servicing, it pays to:

• Check coolant condition and level at every service, replace coolant on schedule (typically every 2–4 years) with the correct spec mix.
• Inspect hoses, radiator cap, thermostat, and water pump, especially when doing a timing belt — it’s smart to bundle the work.
• Watch for head gasket warning signs: unexplained coolant loss, white exhaust steam after warm‑up, milky residue under the oil cap, overheating, misfire on cold start, or bubbles in the radiator/expansion tank.

If a gasket job is needed, the Gran Move responds well to careful prep. The head should be checked for flatness and cracks, skimming only if it’s out of spec per the workshop manual. Use a quality replacement gasket (OE or premium MLS/composite per engine spec) and new seals. Head bolts on these engines are torque‑to‑spec with angle, many techs replace them or measure for stretch and length per the manual. The correct tightening sequence and clean, dry threads are non‑negotiable.

Post‑repair, fresh oil and coolant are a must, along with a proper bleed of the cooling system. A quick re‑torque isn’t generally called for if angle‑tightened bolts are used, but follow the manual to the letter. Look after the cooling system and the Gran Move’s head gasket should give years of easy motoring across Aussie and Kiwi roads.

• What are common symptoms of a failing head gasket on a 2000 Daihatsu Gran Move?

Owners often notice persistent overheating, coolant loss with no obvious leak, white exhaust steam after warm‑up, rough running on first start, or chocolate‑milk looking oil. A pressurised top hose from cold, bubbles in the radiator, or a sweet smell from the exhaust are also red flags. A cooling‑system pressure test and a combustion‑gas test in the coolant help confirm the diagnosis.

• Can you keep driving a Gran Move with a blown head gasket?

Best not. Continued driving risks hydrolock, bearing damage from coolant‑contaminated oil, and warping the alloy head, which can turn a straightforward gasket job into a full rebuild. If it must be moved, keep trips short, top up coolant as needed, and monitor temps — but plan repairs pronto.

• How much does a head gasket replacement usually cost in AU/NZ?

For a small four‑cylinder like the Gran Move, expect roughly 8–12 hours of labour plus parts and any machine work. Ballpark figures are often in the AU$1,200–$2,500 / NZ$1,300–$2,700 range depending on region, parts quality, and whether the head needs skimming, valves serviced, or the water pump and timing belt are done at the same time.