Land Rover Monthly

REPAIR A VACUUM ADVANCE UNIT

NEED TO KNOW

TIME

3 hours

DIFFICULTY

MODELS

All petrol model Land Rovers using Lucas vacuum advance.

TOOLS NEEDED

Screwdrivers, mallet/hammer, drift, old (sharp) screwdriver, grips, wood tools for form-making, drill, thread tap, instant glue, spanner set, pliers.

PARTS USED

Nitrile rubber sheet £3.13, eBay and most rubber and gasket suppliers.

WORK SAFELY

• Use the right tool for the right job.

• Never take risks with electrical wiring.

• If in any doubt, employ an expert to do the job.

• Take extra care using hammers in close work.

fully functioning ignition system is vital for a well-performing petrol Land Rover. It is often said most suspected carburettor issues are actually caused by the ignition system, and it is partly true. Ignition components are required to work in harmony for the spark to happen at the correct time and in the correct place, so this needs to be confirmed before you even think of issues around delicately balancing the mix of fuel and air in the carb.

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