1600 / 510

1967-1973 / Sedan / Japan

All 1600 / 510 problems All workshop issues

Critical Engine -- L-Series (L16)

Oil Leaks

Symptoms

Oil seepage and dripping from multiple points on the engine. Common leak points: valve cover gasket, timing cover gasket, oil pan gasket, rear main seal, distributor shaft seal, cam seal.

Cause

The L-series uses cork, rubber, and paper gaskets that deteriorate over 55 years. The L16 was not the tightest engine when new; age makes everything worse.

Fix

Systematic reseal.

Replace all gaskets and seals in one session.

The rear main seal requires gearbox removal.

Cost: $150--300 DIY for gasket set, $500--1,000 at a workshop for a full reseal.

Cost mentioned in fix

Cost: $150$500

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// More 1600 / 510 problems

Other known issues

Critical Engine -- L-Series (L16)

Timing Chain and Tensioner Wear

Rattling or slapping noise from the front of the engine, particularly on cold start. In severe cases, the chain skips a tooth, altering valve timing and potentially causing valve-to-piston contact.

Minor Engine -- L-Series (L16)

Overheating

Temperature gauge climbs, particularly in traffic or on hot days. Coolant loss.

Critical Engine -- L-Series (L16)

Head Gasket Failure

Coolant in the oil (milky residue on dipstick), oil in the coolant, white exhaust smoke, persistent overheating, coolant consumption.

Common Engine -- L-Series (L16)

Carburettor Wear

Rough idle, hesitation on acceleration, poor fuel economy, rich or lean running.

Common Body and Structure

Floor Pan Corrosion

Soft, spongy, or perforated floor pans. Wet carpet after rain. Road noise increases noticeably as the floors thin. In extreme cases, the floor is partially or entirely gone.

Minor Body and Structure

Sill (Rocker Panel) Corrosion

The outer sill skin softens and crumbles. Door alignment changes as the inner sill structure weakens. The car may creak or flex over bumps.

View all 17 1600 / 510 problems