REMOVAL & INSTALLATION
The compression fitting has a flared metal tube or a compression fitting that is surrounded by a threaded flare nut. Because the tube is flared or has a compression fitting installed, the threaded flare nut cannot be removed from the line and is considered part of the assembly.
Compression fittings are most often used when a pressure line attaches to an assembly, much like the inlet fuel line for the firewall mounted fuel filter found on CRV and 4-cylinder Odyssey models.
The compression fitting does not have a gasket or seal, rather it uses the threaded flare nut to seal the flared end of the line or a compression fitting on the line to the assembly. The flared end of the fuel line or the compression fitting is sealed between the component and the flare nut.
A compression fitting is most often found where the fluid in the line is under considerable pressure.
The flare nut is one of two types:
- To disconnect a fuel line using a compression fitting, hold the component that the flare nut is threaded onto securely, and using a flare nut type wrench, loosen the flare nut.
- Installation is the reverse of the removal procedure.
See Figures 1, 2, 3 and 4