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Fuel Pressure
- Check and note existing pressure. Remove pressure regulating valve from fuel distributor.
- Adjust pressure by changing shims in shim stack. Add shims to raise system pressure. Remove shims to lower system pressure.
- A shim change of .020" (.5 mm) will change system pressure approximately 4.2 psi (.3 kg/cm2
). Ensure any replacement shims are identical in diameter to existing shims.
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