Valve Dimensions

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

Check dimensions of each valve. For dimensions, refer to Standard and Limit .
If dimensions are out of the standard, replace valve and check the valve seat contact.