Hello again to all. The cause of that something is always broken in the diesel is that they have a much higher compression relationship than those of gasoline, and to achieve this the compression camera of the lid where the valves are housed must be of less volume, and that makes the pistons and valves very close to each other and a synchronization loss makes them touch. I have an Isuzu Gemini 1.7TD that is the same engine of El Opel 1.7TD, and I already happened that once the ruleman of the tensor was engaged and logically tranco came out of synchronization and a valve was tortured.
Also other brands with diesel engine break somewhat Toyota 1c breaks the camshaft, mitsubishi rvr break rockers.