The Triumph 2.5 PI (Petrol Injection) represented British engineering at its most ambitious during the late 1960s and early 1970s. These elegant saloons found a niche following in New Zealand, offering a blend of style, performance, and advanced technology for their time. They remain popular among enthusiasts who appreciate their unique character and engaging driving experience.
Common problems include rust (especially around the sills, wheel arches, and floor pan), issues with the Lucas fuel injection system, and potential wear in the overdrive unit. Suspension components can also wear over time. Overheating can be a problem is the system is not maintained.
WOF tips
WOF inspections for the 2.5 PI will focus heavily on structural integrity due to rust. Pay close attention to the condition of the chassis, sills, and floor pan. Brake performance is crucial, and any signs of leaks or uneven braking will be flagged. Lighting must be fully functional and compliant. Correct tires are essential.
About the Triumph 2.5 PI 25PI Sedan
The 2.5 PI was known for its fuel-injected straight-six engine and independent rear suspension. Fuel Injection is often problematic so it requires specialist diagnosis. Rust can plague these cars, particularly in structural areas. Sourcing parts can be challenging.
Questions owners ask
What are the common rust areas on a TRIUMPH 2.5 PI 1968–1975 in New Zealand?
Rust is a significant concern for the TRIUMPH 2.5 PI. Key areas to inspect include the sills, wheel arches, floor pan, and chassis. Due to New Zealand's climate, these areas are particularly susceptible to corrosion.
What are the common issues with the Lucas fuel injection system on the TRIUMPH 2.5 PI?
The Lucas fuel injection system on the TRIUMPH 2.5 PI is known to be problematic. Issues can range from incorrect fuel mixture, leading to poor performance or difficulty starting, to complete system failure. Diagnosis often requires specialist knowledge and equipment.
What should I pay attention to during a WOF inspection on my TRIUMPH 2.5 PI 1968–1975?
During a WOF inspection, the structural integrity of your TRIUMPH 2.5 PI will be closely examined due to its age and susceptibility to rust. Pay close attention to the condition of the chassis, sills, and floor pan. Brake performance and lighting are also crucial, and any issues will be flagged. Ensure your tires meet the required standards.
Where can I get parts for my TRIUMPH 2.5 PI 1968–1975 in NZ?
CARFIX stocks 157 SKUs for the TRIUMPH 2.5 PI 1968–1975. We stock parts like brake pads, filters, and other essential components to keep your classic Triumph on the road. Sourcing specific parts for the fuel injection system may require specialist suppliers.
How often should I service my TRIUMPH 2.5 PI 1968–1975?
The recommended service interval for the TRIUMPH 2.5 PI 1968–1975 is every 8000km. Regular servicing is crucial to maintain its performance and reliability, especially considering the age of the vehicle.
What are some common causes of overheating in a TRIUMPH 2.5 PI?
Overheating in a TRIUMPH 2.5 PI can be caused by several factors, including a faulty thermostat, a blocked radiator, a failing water pump, or issues with the cooling system hoses. Regular maintenance of the cooling system is essential to prevent overheating.
Is the overdrive unit on the TRIUMPH 2.5 PI reliable?
The overdrive unit on the TRIUMPH 2.5 PI can be prone to wear over time. Regular oil changes and careful use can help prolong its lifespan. Listen for any unusual noises or slipping, which could indicate a problem.