I need collaboration

Friends, I've had a 1992 Seat Ibiza 1.5 System Porsche since last year. The problem is, I live in Cuba and it's difficult to get a repair manual here, so I'm asking you for technical information about the engine: calibration, piston diameters, displacement, timing marks—basically all the data needed to get this engine running. Thank you in advance for your help.

Greetings, Cubameca