72 Vacuum schematic

[Rey S.]

I am in need of a schematic showing the layout and routing of the vacuum system for a 72 LS-5 coupe (68-71 maybe ?). My main area of concern is underdash and firewall for the HVAC. I will greatly appreciate any help my fellow members can provide.
Thanks -- Rey S.

[Jack H.]

Re: 72 Vacuum schematic

The vac system schematic wasn't a GM published item. But, they're commonly sold by various catalog houses. Try Lectric Limited and/or Dr. Rebuild.

[Michael W.]

Re: 72 Vacuum schematic

This is a for a '70, might work

http://willcoxcorvette.com/instructi...hose_route.pdf

[Alan S.]

Re: 72 Vacuum schematic

Hi Rey,
The routing for all the vacuum lines, both in the engine compartment and in the interior (under dash/ console/ rear compartment), is shown on various sheets in the 72 AIM (Assembly Instruction Manual). The manuals for many years are sold by the NCRS store at a reduced price from retail. Just $19, and I bet you'll find it to be worth far more than that!
Regards,
Alan

[Don W.]

Re: 72 Vacuum schematic

these ones from Dr Rebuild are great:

http://shop.docrebuild.com/1971-1972corvetteheadlampwiperdoorvacuumposter.aspx

The Headlamp & Wiper Door Vacuum System Troubleshooting Guide is also great

http://docrebuild.com/dr-r-web/A-TROUBLE.HTML