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The Series
1,2 & 3 Land Rover Engine: Petrol (P) and Diesel (D) -
Fault Diagnosis
Listed below are some possible
problems the Series I,II & III Land Rover engine may develop
and how they may be diagnosed.
Engine does not turn over:
Series Land Rovers are blessed with an engine
starter handle, but the ignition timing must be accurate in
order for the handle to be used effectively. Check for: discharged
battery; loose or corroded battery terminal; faulty starter
motor or solenoid; battery earth connection broken, loose or
corroded; broken, loose or dirty connection in starter circuit
wiring;
Engine will not start
A Series Land Rover has very basically designed electrical connections
that are prone to corrosion or working loose.
Check for battery not sufficently charged; loose or corroded
battery terminal; faulty starter motor or solenoid; battery
earth connection loose or corroded; loose or dirty connection
in starter circuit wiring; faulty fuel pump; disconnected,
damaged or damp ignition leads (P); damp or cracked distributor
cap or rotor (P); Incorrect spark plug or contact points gap
(P); dirt or water in carburettor (P); faulty choke mechanism
(P); air in fuel (D); faulty heater plugs (D); faulty of badly
adjusted fuel injectors or distibutor/injector pump (D); injector
pump or distributor pump timing incorrect (D); low compression
(D).
Engine will not idle
Leaking air at inlet manifold
or carburettor flange (P) due to these being made from light
alloy on a Series Land Rover and therefore easily distorted
if not installed carefully.
Also: leaking head gasket; uneven cylinder compression; faulty
contact points, coil, condenser, ignition leads or ignition
advance system (P); dirty or incorrectly adjusted carburettor
(P); worn distributor cam (P); sticking or incorrecly set valves;
incorrectly set idling speed (D); faulty fuel injectors (D);
worn timing chain and sprockets; partially blocked exhaust system;
engine overheating
Engine Misfires
Dirt or water in carburettor
(P); incorrectly set ignition timing,
points gap or spark plug gaps (P);
faulty coil, condenser or valve springs (P); worn disributor
cam (P); overheating (P).
Engine Backfires
Air leakage at exahaust
joints (P); ignition timing too retarded (P); fuel/air mixture
too weak (P); sticking or wrongly adjusted valves; excessively
worn valve guides and valves;
wrong or incorrctly gapped spark plugs (P).
Engine Stalls
Leaking air at inlet manifold
or carburettor flange (P)
due to these being made from light alloy on a Series Land Rove;
leaking head gasket; uneven or low cylinder compression; faulty
contact points, coil, condenser, ignition leads or ignition
advance system (P); dirty or incorrectly adjusted carburettor
(P); choke mechanism sticking (P); worn distributor cam (P);
sticking or incorrecly set valves; incorrectly set idling speed
(D); faulty fuel injectors (D); worn timing chain and sprockets;
partially blocked exhaust system; engine overheating; incorrect
or wrongly gapped spark plugs (P);
Engine Lacks Power
A V4 or V6 Series
Land Rover engine is not known for it's power output. Low gearing
is it's secret of offroad success.
Check for: leaking head gasket; uneven or low cylinder compression;
faulty coil or condenser (P); Distributor advance mechanism
faulty (P); dirty carburettor (P); worn distributor cam (P);
sticking or incorrecly set valves; faulty fuel injectors or
distibutor/injector pump (D); worn timing chain and sprockets;
incorrect or wrongly gapped spark plugs (P); overheating (P);
faulty fuel pump; brakes binding; clutch slipping; fuel filler
cap air breather blocked;
Engine Knocks (caused
by pre-ignition of fuel)
Faulty spark plugs
(P); ignition timing too advanced (P); fuel mixture incorrectly
set (P); valve timing incorrect; carbon deposits in cylinder
head;
Your Land Rover Series I,II or III is smokey
Black - choke setting
wrong or mixture too rich (P); incorrect injector pump timing
or faulty injectors (D)
White - water in cylinders from leaking head gasket (engine
hot); water in fuel (D); lack of compression.
Blue - blocked or overfiled air cleaner; incorrect valve
clearances; damaged or missing valve stem oil seals; worn piston
rings; faulty fuel injectors or distibutor/injector pump (D
(P) - petrol
only
(D) - diesel only
- petrol & diesel
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