Need schematic diagram of vacuum lines for 1984 chevolet motor home ?

SOURCE: vacuum line diagram

if you get a chilton from any local parts store it should have them in there

SOURCE: 1997 suburban vacuum line schematic

Available at dealer on request, sometimes posted on hood

SOURCE: I need a vacuum line schematic for a 2003 chevy

Replace the complete heater control vacuum line over the motor with rubber vacuum tubing.
The heater vacuum line connects on the drivers side of the engine halfway back on the intake manifold.Run the new line to the heater vac connection at the passenger side at the right front in the engine compartment.
I change 2 a week....this should be where your problem is.

Testimonial: "That took care of it. I did change from that small vacuum line to the large rubber and ran it up to a wire loom overhead so as not to get as hot."

SOURCE: i need a vacuum line diagram

need vacuum line diagram for a 1974 chevy truck 6 inline 250

SOURCE: I need the fan belt

Hopefully this diagram will help. As for the belt sizes, I would suggest using a thick nylon rope routed around the pulleys and then measuring the length. When purchasing the belts enquire as to the store's exchange policy in case you get it wrong.