2000GT

1967-1970 / Coupe / Japan

All 2000GT problems All workshop issues

Common Body and Structure

Galvanic Corrosion at Mixed-Metal Joints

Symptoms

White powdery corrosion on aluminium panels, particularly where they attach to the steel chassis or steel substructure. Panels may become loose or develop cracks at attachment points.

Cause

Aluminium and steel in contact create a galvanic cell in the presence of moisture. Over 55+ years, even with insulating barriers between the metals, moisture finds its way in and corrosion develops. Australian coastal environments accelerate this significantly.

Fix

Disassemble the affected area, remove all corrosion, treat with appropriate corrosion inhibitor, and reassemble with proper insulating barriers between dissimilar metals.

On a concours-level car, this may involve panel removal, media blasting, and refinishing.

Cost: $2,000-10,000+ AUD depending on severity and the panels involved.

Cost mentioned in fix

Cost: $2,000-10,000+

Know something we don't?

Owned a Toyota 2000GT? Share your experience with this issue. What worked, what didn't, costs, tips. Help the community.

Submit an update

// More 2000GT problems

Other known issues

Minor Body and Structure

Steel Chassis Corrosion

Surface rust progressing to pitting and eventually perforation of the steel backbone chassis, floor sections, and structural members.

Minor Body and Structure

Fibreglass Nose Section Cracking

Hairline cracks in the fibreglass nose section, particularly around stress points (headlight surrounds, bonnet latch area, mounting flanges).

Common Engine, 3M 2.0L DOHC Inline-6 (Yamaha-Built)

Carburettor Deterioration and Synchronisation Drift

Rough idle, uneven power delivery, flat spots during acceleration, poor fuel economy, and difficulty starting. The engine may run rich on some cylinders and lean on others.

Critical Engine, 3M 2.0L DOHC Inline-6 (Yamaha-Built)

Timing Chain Stretch

Rattling or slapping noise from the front of the engine, particularly on cold startup. In advanced cases, the cam timing shifts, reducing power and causing rough running.

Critical Engine, 3M 2.0L DOHC Inline-6 (Yamaha-Built)

Oil System Leaks (Dry Sump)

Oil puddles under the car, oil residue on the engine and chassis, dropping oil level in the external oil tank. Potential oil starvation if leaks are severe.

Common Engine, 3M 2.0L DOHC Inline-6 (Yamaha-Built)

Valve Clearance Drift

Ticking noise from the valve train at operating temperature, gradual loss of power, uneven cylinder performance.

View all 13 2000GT problems