KIT YANMAR SPLIT RING

Function and technical context

The retaining ring kit (split ring) for Yanmar engines is part of the engine's internal fixing and security system, acting as locking elements that prevent the axial displacement of shafts, pins and critical rotating components. These small opening rings work under constant tension in areas subject to vibration and repeated thermal cycles, which makes them wearing parts that must be kept in perfect condition. If a retaining ring fails or loses tension, the component it holds can move, generating unforeseen clearances that lead to knocking, internal friction or even mechanical blocking of the affected part. Purchasing the complete kit with reference TEN01305/1 guarantees having all the necessary elements for a correct replacement without having to search for individual parts.

When to replace this part?

The retaining rings must be inspected whenever the engine or transmission is dismantled, since during the removal process it is common for them to suffer deformations that prevent their safe reuse. The most common symptoms of a defective retaining ring are intermittent metallic noises at certain rpm, excessive play in shafts or pins, and accelerated wear of adjacent components. The recommended practice in a nautical workshop is to replace them preventively in each major intervention or seasonal inspection, given that their cost is minimal compared to the damage that a navigation failure can cause.

Equivalent manufacturer part numbers