164

1968-1975 / Sedan / Sweden

All 164 problems All workshop issues

Common Transmission and Drivetrain

Manual Gearbox (M40/M41) Worn Synchros

Symptoms

Crunching into second or third gear, difficult shifting when cold, grinding noises.

Cause

The M40/M41 gearboxes are tough but not indestructible. Synchromesh rings wear with high mileage or abuse. Second gear is usually the first to go.

Fix

Full gearbox strip-down and rebuild.

Replace synchro rings, check the condition of the gear teeth, replace bearings as needed.

It's a skilled job, if you're not confident, find a gearbox specialist.

Alternatively, source a good used gearbox from a breaker.

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// More 164 problems

Other known issues

Minor Transmission and Drivetrain

Overdrive (M41) Failure

Overdrive won't engage, engages but kicks out under load, grinds or whines.

Common Transmission and Drivetrain

Propshaft Centre Bearing Failure

Vibration at speed, clunking or rattling from under the car, especially on acceleration or deceleration.

Common Transmission and Drivetrain

Differential Wear and Noise

Whining or howling from the rear axle, especially under load or when coasting. Clunking when changing direction (forwards to reverse).

Common Engine

Oil Leaks from Camshaft Seals and Gaskets

Oil weeps or pools around the valve cover, drips down the side of the block, or accumulates around the timing cover. You might also see oil on the bellhousing or clutch/flywheel area.

Common Engine

Carburettor Issues (B30A/E with Dual Strombergs)

Rough idle, hesitation, stalling when cold, uneven running, black exhaust smoke, poor fuel economy.

Critical Engine

Cooling System Neglect

Overheating, coolant loss, white smoke from the exhaust (head gasket failure), corroded radiator, seized water pump.

View all 23 164 problems