Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Check & Cut Valve
1991 Mazda 929 BaseSECTION Check & Cut Valve
- Remove check and cut valve. Connect a pressure gauge with "T" fitting to check and cut valve nipple leading to fuel tank. Cap the opposite nipple. See Fig 1 .
- Blow through passage "A". When pressure gauge reads .14-.71 psi (.01-.05 kg/cm2 ), valve should open. Remove "T" fitting and pressure gauge. Connect "T" fitting to bottom of valve. Blow through passage "B". When pressure gauge reads .78-1.0 psi (.06-.07 kg/cm2 ), valve should open. Replace assembly if valve did not open at specified pressure.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.