I have no heat coming out of my heater on my 1967 Buick Riviera, 430-4. Had engine overhauled. The mechanic may not have hooked the vacuum lines Really want to find a vacuum line diagram for the 67.

SOURCE: Vacuum diagram for 4A-F engine

hmmmm... im not expert in these kind of problem but... try to replace the diagram? it is possible?

SOURCE: No Heat..Heater Core Is Heating..Vacuum Lines?

I have a '96 Eddie Bauer Limited and it has the same problem. They told me that there is a small butterfly valvu located in the vac lines to select between hot or cold air. There is a tension spring connected to the valve, to an acutator, and to your ac contorl system. The spring on mine broke, so the valve opens and closes due to suction only. It is supposed to be about a $700.00 fix (due to the valves location by the firewall) but I have found a way around that. Try to aggressively apply the brakes making the vehicle slow rapidly, and at the same time turning on the blower fans with full bast heat selected. If this does not work, try doing the previous while going around a right hand corner. The corner will help the momentum of the valve turn in the right direction. Remember you have to switch the fan on full blast when you try either. If it works you should hear a thud as the valve flips shut and the heat should start coming out of the vents.

Good luck

SOURCE: need vacuum line diagram for

try this website: http://members.dandy.net/~k0xp/Oldsmobile/OldsDiagrams.htm
it's based off of the 1984 cutlass with 307 but may work on other oldsmobile buick and even cadillac vehicles with 307. hope this helps.

SOURCE: i need a vacuum line

Here are 2 diagrams for you,don't know if it's california or not you should be able to tell.

SOURCE: need a 1996 buick riviera rear air shock connection diagram is it possible?

i would just follow the route of the ones on there. or just reroute the new lines and make sure they will not get pinched or ripped off