- Action: To Do List item A0246 - Obtain engine air filter and install.
- Completed: 8 November 2017
- Cost: $37.99
While reviewing pictures of the engine, the following picture of the Yanmar 4JH5E air intake manifold caught my attention. Something just did not look right.
I checked the Yanmar parts diagrams, pictured below, and it matched what Yanmar specified. This engine has no air filter element, just an intake hose (15) and plastic suction manifold (14). This means any particulates, dust, hair, or debris can make it's way into the engine - not a well thought out design. This installation could easily be improved upon to protect the engine.
Researched the internet and found a potential air filter candidate: a K&N RC-0870 High Performance Universal Clamp-on Chrome Air Filter. It's height was short enough to fit the confined area on the engine and the diameter of the hose tail would fit the inlet of the suction manifold. Found the lowest price on Amazon.com and ordered it for $37.99.
The K&N air filter fit on the suction manifold perfectly.
Installed the suction manifold with the K&N air filter back on the engine - perfect fit and clearance!
