Check the hoses and the pipes for cracks or damage.
Check the fuel tank cap for proper operation.
Check the fuel tank for deformation, corrosion or cracking.
Check the fuel tank inside for dirt or contamination.
Check the in-tank fuel filter for damage or restriction.
Test the two-way valve for proper operation.
Using a vacuum hand pump, check the operation of the two-way valve.
Valve pump | Guide lines for acceptance or rejection |
When connected to inlet side | Negative pressure generated and vacuum maintained |
When connected to outlet side | No negative pressure generated |
