The RB Holden Gemini (1985–1987) represents the final iteration of the Holden Gemini before production ceased. Known for its reliability, lightweight design, and compact practicality, the RB Gemini is still a sought-after classic for enthusiasts looking for an affordable, easy-to-maintain vehicle.
Buying an RB Gemini requires careful inspection, as these cars are now over 40 years old and often show signs of rust, mechanical wear, and electrical issues.
1. Body and Chassis
Rust is the most common issue in RB Geminis. Key areas to inspect include:
- Sills and floor pans – Look for holes, bubbling paint, or past repairs under carpets.
- Wheel arches and rear quarters – Check for corrosion or weak panels.
- Boot floor – Water ingress can cause hidden rust.
- Door frames and alignment – Uneven gaps can indicate prior body damage.
Tip: The RB is slightly better protected against rust than earlier models, but careful inspection is still essential.
2. Engine and Drivetrain
RB Geminis were typically equipped with 1.6L four-cylinder engines paired with manual or automatic gearboxes.
Key areas to check:
- Oil leaks – Common around the valve cover, oil pan, and gaskets.
- Cooling system – Radiator and hoses can degrade over time. Check for overheating signs.
- Transmission – Manual gearboxes should shift smoothly; automatics should operate without slipping.
- Timing chain/belt – Ensure it has been serviced or replaced according to schedule.
Tip: Well-maintained RB engines are generally reliable, but service history is vital.
3. Suspension and Steering
- Shocks and springs – Inspect for leaks, sagging, or wear.
- Bushings – Engine and suspension bushings may have hardened over time.
- Steering rack and linkages – Check for excessive play or unusual noises.
Tip: Take a test drive to feel for clunks or steering misalignment, which may indicate worn components.
4. Interior and Electronics
- Seats and trim – Check for wear, tears, and fading.
- Dashboard and gauges – Ensure all instruments and warning lights function.
- Switches and electrics – Lights, indicators, wipers, and heater controls should all work.
- Carpets and floorboards – Look for damp patches, mould, or rust.
Tip: Electrical issues are rare in the RB, but older wiring can still degrade.
5. Common Issues Specific to the RB Gemini
- Rust in sills, floor pans, wheel arches, and boot.
- Cooling system leaks or degraded hoses.
- Suspension bushings and shock absorbers worn over time.
- Minor electrical gremlins with dash or switches.
6. Documentation and Provenance
- VIN verification – Ensure it matches engine and registration.
- Service history – Original receipts and logbooks are invaluable.
- Ownership history – Find out if the car has been raced or heavily modified.
Tip: Single-owner cars with complete documentation are preferred.
7. Price Considerations
- RB Geminis are affordable compared to larger Holdens or other classics.
- Cars with rust or mechanical issues will require investment in restoration.
- Well-maintained examples are increasingly collectible and sought after by enthusiasts.
Conclusion
The RB Holden Gemini is a reliable, practical, and lightweight classic that remains an accessible entry point for Holden enthusiasts. When buying, focus on rust inspection, engine and transmission condition, suspension integrity, and proper documentation. A carefully selected RB Gemini can be a fun, low-cost classic car.