Being an interference motor, Nissan didn’t leave much room for failure, and the Timing Belt is the grenade pin, if any timing components fails & pull said pin…then you’re going to have a very bad day!
Proof of any timing belt system service is one of the top questions to ask when dealing with a new ZX.
Nissan designated a time & kms replacement schedule for the timing belt & its always good practice to follow these recommendations, but things to consider that are often overlooked are the motor ancillaries…the 35 year old fuel lines, the rusty water-pump and thermostat, the front crank seal that’s likely never been changed because the crank sprocket is seized on!
Since VGs motors involve such an intensive effort & disassembly to gain access to the timing system components, ConceptAutoInd Comprehensive Timing Kit goes for maximum effect by providing additional items that are in range at such engine depth.