Check the rocker arms for No. 1 cylinder. If they are loose, the cylinder is at TDC.
The 4BE1 relies on mechanical fuel injection. The manual instructs technicians on how to bleed the fuel lines, set the static injection timing relative to Top Dead Centre (TDC), and service the mechanical governor. 3. Essential Torque Values & Settings Isuzu 4be1 Engine Repair Manual
Worn piston rings or leaking valve seats. Perform a diesel compression test; standard compression pressure should be above 30 kg/cm² (426 psi). Excessive Engine Smoke Check the rocker arms for No