Due to some configuration issues associated with posting a 9 MB file, I posted this for Alain. The forum will now allow 12 MB files with a maximum of 20 MB per post.
Perkins 4108 Workshop Manual.pdf
Perkins 4108 Workshop Manual.pdf (8.85 MB)
And as a complement to the workshop manual, the Parts Book for the Perkins 4.108 M, 1981 Edition
Perkins 4108 Parts Book.pdf (3.5 MB)