Cylinder head, Cylinder head screws, <a href="https://garage.wiki/opel/engines/gasoline/straight-4/16-l/x-16-xel/99-hp-at-5800-rpm-135-nm-at-3400-rpm.html" title="Opel gasoline straight-4 1.6 L X 16 XEL 99 HP at 5800 RPM, 135 N⋅m at 3400 RPM engine DIY maintenance and service manual">Opel gasoline straight-4 1.6 L X 16 XEL 99 HP at 5800 RPM, 135 N⋅m at 3400 RPM</a>, First stage

by Roman Paulov