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MOTRS

164

1968-1975 / Sedan / Sweden

All 164 problems All workshop issues
Common Fuel System

Fuel Pump Wear (Mechanical and Electric)

Symptoms

Hard starting, hesitation under load, fuel starvation at higher RPM.

Cause

Mechanical pumps (driven off the camshaft) wear out, diaphragm splits, valves fail, pushrod wears. Electric pumps (if fitted) also fail with age.

Fix

Replace the fuel pump.

Mechanical pumps are cheap and easy to fit (new gasket, check pushrod length).

If converting to electric, mount it near the tank, use proper fuel hose rated for injection pressures, and fit a relay.

Test fuel pressure: should be around 3-4 psi for carburettors.

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Other known issues

Common Fuel System

Fuel Tank Rust and Sediment

Fuel starvation, rough running, clogged fuel filters, fuel pump failure.
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.
Common Engine

Ignition System Wear

Hard starting, misfiring, poor performance, backfiring through the carburettor.
Common Cooling System

Radiator Corrosion and Leaks

Coolant loss, overheating, visible corrosion or green staining around the radiator core or end tanks.
View all 23 164 problems