Cylinder head, Cylinder head screws, <a href="https://garage.wiki/opel/engines/diesel/straight-4/31-l/4-jg2t/107-hp-at-3600-rpm-255-nm-at-1900-rpm.html" title="Opel diesel straight-4 3.1 L 4 JG2T 107 HP at 3600 RPM, 255 N⋅m at 1900 RPM engine DIY maintenance and service manual">Opel diesel straight-4 3.1 L 4 JG2T 107 HP at 3600 RPM, 255 N⋅m at 1900 RPM</a>, First stage

by Roman Paulov