Engine O-ring 320/01772 JCB, aftermarket

Engine O-ring 320/01772 is an aftermarket part for the JCB machines.

An engine O-ring seals the joint of a sensor, oil pickup pipe, dipstick tube, oil cooler, fuel pump or cover with the engine block. Heat and oil harden the rings over time and they lose their resilience. A failed ring on the oil pickup lets the pump draw in air and the oil pressure drop, while other failed rings cause external oil leaks.

Specifications

Compatibility

According to the product card, 320/01772 is an engine O-ring. Fit is confirmed by the part number. Other parts are in Seals and oil seals.

Fitting

On assembly, clean the groove and mating face, wet the ring with the working fluid or suitable grease and seat it without twisting. Protect the ring as it passes sharp edges and threads, tighten the joint to the specified torque and check for leaks under pressure. Spare rings are stored somewhere cool and dark, since rubber in sunlight cracks at the surface. Before fitting, inspect the ring for cracks and cuts.