Century Buick Mechanics Manual 3100 SFI V6

Good morning friends if you can help me with the repair and exploded manual of the 3100 SFI V6 engine of the Chevrolet Century Buick or if possible the link to download it since I repair my engine and save does not turn me on and it makes a lot of shots when starting it I already have several days in this and I have not been able to find the manual for best specification is a vehicle vehicle Chevrolet brand Century Model Century Buick Buick Buick Buick Motor Fuul Injection Year 1990 Automatic Box 4T60E Electronic I am very urged from these manuals if I have to buy them I would do it but in bolivars since I live in Venezuela and I do not have dollars

Wishing you a happy day I say goodbye to you and waiting for your help or answer that I would know how to thank you

ATT: Nelson Arenas