hi i'st post so i might need help

have water leak pass side crossover hose between heads, removal of parts seem to be streight forward but my manual is useless at showing any details of water line routes or parts required, auto supply charts list just a few normal replacment parts. first is this the right forum to start in second is anyone done this task. am also replacing valve cover gaskets while i'm in there.

thanks in advance for any help or guidence
done2

 

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