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KE70 Corolla

1979-1983 / Sedan / Coupe / Japan

All KE70 Corolla problems All workshop issues
Critical Engine, 3K-C and 4K-C Pushrod Inline-4

Oil Leaks

Symptoms

Oil weeping or dripping from multiple points on the engine. Oil residue on the rocker cover, sump, and rear of the engine. Oil spots under the car.

Cause

Every gasket and seal in the K-series engine hardens and shrinks with age. The rocker cover gasket is the most common culprit, followed by the sump gasket, timing cover seal, and rear main seal. The rear main seal is a rope-type seal on early engines, which is notoriously difficult to seal perfectly.

Fix

Rocker cover gasket: $15 for the gasket, 30 minutes to replace.

Sump gasket: $20, requires dropping the sump (1-2 hours).

Timing cover seal: $30, requires removing the radiator and timing cover.

Rear main seal: $30 for the seal, but the gearbox must be removed to access it ($200-400 labour if you can't do it yourself).

Cost mentioned in fix
$15 for the gasket$20,$30,$30 for the seal$200-400

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Other known issues

Common Engine, 3K-C and 4K-C Pushrod Inline-4

Timing Chain Wear

Rattling or slapping noise from the front of the engine, most noticeable at cold start and idle. The noise may diminish once the engine warms up and oil pressure stabilises the tensioner.
Common Engine, 3K-C and 4K-C Pushrod Inline-4

Carburettor Problems

Rough idle, poor fuel economy, hesitation on acceleration, black smoke from the exhaust, engine stalling. Difficulty starting when cold or when hot (vapour lock).
Critical Engine, 3K-C and 4K-C Pushrod Inline-4

Overheating

Temperature gauge climbing into the red, coolant loss, steam from under the bonnet. In severe cases, head gasket failure.
Minor Rust and Corrosion

Rear Quarter Panel Corrosion

Bubbling paint on the rear quarter panels, progressing to perforation. Rust visible inside the boot behind the wheel arch trim. In severe cases, the inner wheelarch structure is completely gone and the outer skin is all that's holding the shape.
Common Rust and Corrosion

Boot Floor and Spare Tyre Well Corrosion

Soft, rusted, or perforated metal in the boot floor. Water pooling in the spare tyre well. Damp smell from the boot. Rust staining on the boot carpet.
Minor Rust and Corrosion

Sill (Rocker Panel) Corrosion

Paint bubbling along the sills below the doors. Soft metal when tapped. In severe cases, the sill collapses when jacked, and the door gaps change as the body flexes.
View all 16 KE70 Corolla problems