It is a core transmission part of the VE distributor pump. When the drive shaft rotates, it drives the CAM DISK to operate. It pushes the distributor plunger to make axial reciprocating motion through the end cam profile, realizing diesel pressurization. Meanwhile, it drives the plunger to rotate to complete fuel distribution to different cylinders, which directly determines the uniformity of fuel supply and the accuracy of injection timing.

It is widely compatible with mainstream VE pump models such as VE36 and VE37. The common matching product models include 1466110-015, 146220-3220 for 4-cylinder pumps, and 146221-0220, 146221-1220 for 6-cylinder pumps. It can also be customized according to the special models of VE pumps required by customers.

In order to adapt to the high-speed and high-friction working environment of VE pumps, it is mostly made of high-strength wear-resistant materials such as high-speed steel. The surface is processed by precision technology, which can withstand high-frequency friction during long-term operation and cooperate with the diesel self-lubrication environment inside the VE pump to extend the service life.

Severe wear will lead to unstable movement of the plunger. It may cause insufficient fuel supply pressure and uneven fuel distribution among cylinders. The specific manifestations include difficulty in starting the hot engine, unstable engine speed, and even stalling during high-speed operation. In serious cases, it will also affect the injection timing and increase fuel consumption.

You can judge from two aspects. One is the fault phenomenon: if there are problems such as insufficient power, jitter during idling, and increased exhaust emissions of the engine, and other parts are normal after inspection. The second is the physical inspection: after disassembling the VE pump, if there are obvious scratches, pits, or uneven wear on the cam profile of the CAM DISK, it should be replaced in time.

Yes. For example, if the direction of the CAM DISK is reversed during installation (when the keyway of the drive shaft faces the top of the oil pump, the drive pin of the CAM DISK does not face the bottom of the oil pump), it will directly lead to wrong injection timing, resulting in failure to start the engine or serious jitter after startup. It must be installed in strict accordance with the assembly specifications.