I want to thank those who have tried to help me with my vac problems. i'm still learning how to navigate this site and often get lost before i get back to follow my post. My problem is bigger than a vac problem it's a starting problem but since I know the vac routing isn't correct I thought I would start there in case that's affecting the starting problem. The local foreign car service has no one familiar with this engine and knows of no other 603 engines in the area that I could look at. I have the diagram posted in this thread but from the description on the diagram can't locate the units on the engine. Like where is the switch over valve .I'm going to try to get some pictures of my problem areas and see if I can figure how to post them here. If I can find this post again. Don't hold your breath.