Checklist
1970 - 1977 DATSUN 240-260Z
BODY & CHASSIS
Many Z-Cars were last ‘restored’ 25 or 30 years ago, at a time when average cars barely made $5000 and owners would not pay the cost of scrupulous rust removal or to source new parts. Front pillars are a deadly place to find rust so look for bubbling and signs of filler. Also be concerned if the doors are hard to close. The problem might be worn hinge pins or mounting points that have weakened due to rust. Feel inside the wheel-arches and window surrounds for bubbling, look above and below floor-pans for rust and be wary of a hatch that is difficult to close or letting in water. Some parts including door skins and rust repair sections are available but rusted sections of the firewall, pillars and turret must be cut out and remade.
ENGINE & TRANSMISSION
Six-cylinder Nissan engines are simple and very durable. Cars that have been turbocharged can reliably develop big power but need more frequent maintenance than stock motors. Listen for valve train rattle (not too serious) or low-frequency bearing rumbles which will mean a rebuild is due. Underbonnet accessories can mostly be replaced or repaired, however items like genuine carburettors and the electronic ignition are very difficult to locate. Carbs are expensive to rebuild and installing a brand new set of three Weber carbs costs less than $3000.
SUSPENSION & BRAKES
Z Car steering, in common with most Japanese recirculating ball systems of its time, was vague from the outset and got worse. Be cautious if a car has more than 30mm of slop at the wheel rim. Binding or cracking noises when turning tightly at low speeds are also not normal. Owners who lower their cars using stiffer springs, bushings and shock absorbers will have meddled with the original ride/handing balance and this may not suit your preferences. The front disc/rear drum brakes were marginal even 50 years ago and a lot of cars are running enlarged rotors at the front with retro-fit discs to the rear.
INTERIOR & ELECTRICS
Dash-tops will often come with moulded mats that conceal cavernous cracks. If you’re happy to leave them that way then a new mat costs about 100 bucks. New plastic isn’t currently available and plasti-welding can work but isn’t a long-term fix. Most cars won’t have a dash that’s really falling apart but if it is, scour the world for a good RHD replacement. Reproduction door trims for some versions are available, as are window runners and other door internals. 240Z trafficator arms are available new from overseas suppliers at around A$300, Broken seat frames and adjusters can be repaired and trim kits for two-seat cars are being made.