Fault finding REF•13
REF
4 Clutch
Pedal travels to floor (no pressure or very little
resistance)
mm Air in clutch hydraulic system (Chapter 6).
mm Faulty clutch master cylinder (Chapter 6).
mm Faulty clutch slave cylinder (Chapter 6).
mm Incorrect clutch return stop adjustment (Chapter 1).
mm Incorrect clutch throw-out stop adjustment (Chapter 6).
mm Broken clutch release bearing (Chapter 6).
mm Broken diaphragm spring in clutch pressure plate (Chapter 6).
Clutch fails to disengage (unable to select gears)
mm Incorrect clutch return stop adjustment (Chapter 1).
mm Incorrect clutch throw-out stop adjustment (Chapter 6).
mm Clutch disc sticking on primary gear splines (Chapter 6).
mm Clutch disc sticking to flywheel or pressure plate (Chapter 6).
mm Faulty pressure plate assembly (Chapter 6).
mm Clutch release mechanism worn or incorrectly assembled
(Chapter 6).
Clutch slips (engine speed increases, with no
increase in vehicle speed)
mm Incorrect clutch return stop adjustment (Chapter 1).
mm Clutch disc linings excessively worn (Chapter 6).
mm Clutch disc linings contaminated with oil or grease (Chapter 6).
mm Faulty pressure plate or weak diaphragm spring (Chapter 6).
Judder as clutch is engaged
mm Worn or loose engine or transmission mountings (Chapter 2A).
mm Clutch disc linings contaminated with oil or grease (Chapter 6).
mm Clutch disc linings excessively worn (Chapter 6).
mm Faulty or distorted pressure plate or diaphragm spring (Chapter 6).
mm Clutch disc hub or primary gear splines worn (Chapter 6).
Noise when depressing or releasing clutch pedal
mm Worn clutch release bearing (Chapter 6).
mm Worn or dry clutch pedal bushes (Chapter 6).
mm Faulty pressure plate assembly (Chapter 6).
mm Pressure plate diaphragm spring broken (Chapter 6).
3 Fuel and exhaust systems
Excessive fuel consumption
mm Air filter element dirty or clogged (Chapter 1).
mm Incorrect idle speed and mixture adjustment - carburettor models
(Chapter 4A).
mm Choke cable incorrectly adjusted, or choke sticking - carburettor
models (Chapter 4A).
mm Fuel injection system fault - fuel injected models (Chapter 4B).
mm Ignition timing incorrect/ignition system fault (Chapters 1 and 5B).
mm Tyres under-inflated (“Weekly checks” ).
Fuel leakage and/or fuel odour
mm Damaged or corroded fuel tank, pipes or connections
(Chapter 4A, 4B or 4C).
mm Carburettor float chamber flooding (float height incorrect) -
carburettor models (Chapter 4A).
Excessive noise or fumes from exhaust system
mm Leaking exhaust system or manifold joints (Chapters 1 and 4C).
mm Leaking, corroded or damaged silencers or pipe (Chapters 1
and 4C).
mm Broken mountings causing body or suspension contact
(Chapter 4C).
2 Cooling system
Overheating
mm Insufficient coolant in system (“Weekly checks” ).
mm Thermostat faulty (Chapter 3).
mm Radiator core blocked, or grille restricted (Chapter 3).
mm Electric cooling fan or thermoswitch faulty - later models
(Chapter 3).
mm Pressure cap faulty (Chapter 3).
mm Blown cylinder head gasket (Chapter 2A or 2B).
mm Ignition timing incorrect/ignition system fault (Chapters 1 and 5B).
mm Inaccurate temperature gauge sender unit (Chapter 3).
mm Airlock in cooling system (Chapter 1).
Overcooling
mm Thermostat faulty (Chapter 3).
mm Inaccurate temperature gauge sender unit (Chapter 3).
External coolant leakage
mm Deteriorated or damaged hoses or hose clips (Chapter 1).
mm Radiator core or heater matrix leaking (Chapter 3).
mm Pressure cap faulty (Chapter 3).
mm Water pump seal leaking (Chapter 3).
mm Boiling due to overheating (Chapter 3).
mm Core plug leaking (Chapter 2B).
Internal coolant leakage
mm Leaking cylinder head gasket (Chapter 2A or 2B).
mm Cracked cylinder head or cylinder bore (Chapter 2A or 2B).
Corrosion
mm Infrequent draining and flushing (Chapter 1).
mm Incorrect coolant mixture or inappropriate coolant type (Chapter 1).
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