Newbie looking for Perkins Prima M50 infos

[Juanmi]

Hello everyone,
I'm looking for information for my Perkins Prima M50. I'm having some compression problems. I suspect I need to check the rocker arm ratio but I don't have the ratio specifications. Can you help me? Thank you very much

 

[Scott Danforth]

Get the factory manual

 

[Juanmi]

Hello,
the Perkins Prima M50 is a Volvo MD22 (same engine) so here the workshop manual :

MOD EDIT - LINK REMOVED FOR COPYRIGHT REASONS.