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Vauxhall Chevette
Fuel trouble shooter
How to fill your Chevette with fuel

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FAULT CAUSE CURE
Flooding 1. Improper seating or damaged float needle valve or seat. 1. Check and replace parts as necessary.
2. Incorrect float level. 2. Adjust float level.
3. Fuel pump has excessive pressure. 3. Check fuel pump.
Excessive fuel consumption 1. Engine out of tune. 1. Tune engine.
2. Float level too high. 2. Adjust float level.
3. Loose plug or jet. 3. Tighten plug or jet.
4. Defective gasket. 4. Replace gaskets.
5. Fuel leaks at pipes or connections. 5. Trace leak and rectify.
6. Piston sticking. 6. Check piston for free movement.
7. Obstructed air bleed. 7. Check and clear.
Stalling 1. Jet obstructed. 1. Clean jet assembly.
2. Incorrect throttle opening. 2. Adjust throttle.
3. Idle mixture adjustment incorrect. 3. Adjust idle mixture.
4. Incorrect float level. 4. Adjust float level.
Poor acceleration 1. Incorrect mixture setting. 1. Adjust carburettor mixture.
2. Damper oil level incorrect. 2. Top-up damper oil.
3. Float level too low. 3. Adjust float level.
4. Incorrect throttle opening. 4. Adjust throttle.
Spitting (backfire through carburettor) 1. Weak Mixture. 1. Clean and adjust carburettor.
2. Incorrect ignition timing. 2. Tune engine.
3. Clogged fuel pipes. 3. Clean or replace pipes.
4. Inlet manifold leak. 4. Check manifold/replace gasket.
Insufficient fuel supply 1. Clogged carburettor. 1. Dismantle and clean carburettor.
2. Clogged fuel pipe. 2. Clean fuel pipe.
3. Dirty fuel. 3. Clean fuel tank.
4. Air in fuel system. 4. Check connections and tighten.
5. Defective fuel pump. 5. Repair or replace fuel pump.
6. Clogged fuel filter. 6. Clean or replace filter.
Loss of fuel delivery 1. Pump faulty. 1. Replace pump.
2. Blocked fuel filter. 2. Clean/replace fuel filter.
3. Diaphragm cracked. 3. Replace fuel pump.
4. Loose fuel pipe connections. 4. Tighten fuel pipe connections.
5. Defective valves. 5. Replace valves.
6. Cracked fuel pipes. 6. Replace fuel pipes.
Noisy pump 1. Loose pump mounting. 1. Tighten mounting bolts.
2. Worn or defective rocker arm (mechanical). 2. Replace fuel pump.
3. Broken rocker arm spring (mechanical). 3. Replace fuel pump


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