LR
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Fuel systemLow severity

2.25 petrol hard to start when hot

Annoying rather than dangerous.

Symptoms

Starts fine cold but struggles to restart after a run, especially in warm weather.

Likely cause

Fuel vaporising in the carburettor or fuel pump, or a carburettor float level set too high.

Suggested fixes

Listed roughly in the order most owners try them.

  1. 1

    Fit a carburettor heat shield

    A shield or insulating spacer reduces heat soak into the carb.

    Difficulty:
    Easy DIY
    Cost:
    £ (Under about £50 in parts)
  2. 2

    Set the float level

    Adjust the float to the correct height to stop flooding.

    Difficulty:
    Moderate DIY
    Cost:
    £ (Under about £50 in parts)
  3. 3

    Rebuild the mechanical fuel pump

    Worn diaphragms or valves cause poor delivery when hot.

    Difficulty:
    Moderate DIY
    Cost:
    £ (Under about £50 in parts)

This is general guidance gathered from owner experience and workshop practice, not a substitute for a workshop manual or a qualified mechanic. Costs are rough parts-only guides. Brakes, steering and suspension work affects safety, so if in doubt have it checked professionally.

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