After removing intake and exhaust manifold and turbocharger, I needed to remove lines between the injector pump and the injectors, and after that the filter with its mount.
On the picture above, you can see where the removed lines were, which I removed by using wrench because the line connections on the injector pump and injectors are made by nuts.
Before I could commit myself to work with the cylinder head, final thing that I needed to do, was removing the filter. There were two bolts holding the filter to the head. Next picture shows where those bolts where.
You can read about everything that has been done in the following posts: