Hino F21c Engine Manual [updated] -

. Bolts should be oiled and tightened in a circular pattern starting from the center. Safety Precautions:

Because of the V-block design, air pockets can get trapped in the heads. The manual outlines specific bleed screw locations. Troubleshooting and Diagnostic Codes Hino F21c Engine Manual

: Set cylinder #1 to Top Dead Center (TDC) on the compression stroke before adjusting. 2. Lubrication & Capacities Hino F21c Engine Manual