Datsun 240Z / 260Z
The Datsun 240Z and its successor, the 260Z, are iconic Japanese sports cars that challenged European supremacy in the 1970s by offering stunning E-Type-esque styling and reliable inline-six performance. In the UK, they are highly revered classic cars, prized for their beautiful proportions, mechanical simplicity, and tunability. Due to the UK’s damp climate, surviving original examples are exceedingly rare, with rust being the ultimate enemy of these cars. Reliability of the L-series engine is legendary, provided the twin SU-style carburetors are correctly tuned. It is a fantastic choice for classic car enthusiasts who want a stunning, reliable weekend cruiser or a base for a historic track car.
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Common Faults & Reliability
These are the most common documented problems for the Datsun 240Z / 260Z, sorted by their typical impact and frequency.
Structural Corrosion (Rust)
high severityThe S30 chassis has many hidden box sections where moisture traps and eats the metal from the inside out. Frame rails, battery trays, and floor pans are the most common failure points.
Overheating & Head Gasket Failure
high severityOlder L24/L26 engines can suffer from silt buildup in the radiator or blocked coolant passages in the block, leading to localized overheating and warped heads.
Carburetor & Fuel System Issues
medium severityThe Hitachi-SU carburettors require regular maintenance and adjustment. Worn needles, vacuum leaks and gummed-up passages cause flat spots, poor idle and hesitation. Parts are hard to source, with many owners converting to Webers.
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Example Datsun 240Z / 260Z Vehicles
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