Vacuum hose routing

[hal stclair]

I know I've seen them but can't seem to find a vacuum hose diagram for the engine on a 1975. Anyone have the information?
Thanks as always. Hal
--
1977 Royale 101348,

1977 Royale 101586, Diesel powered,

1975 Eleganza II, 101230

1974 Eagle Bus 45',w/slideout

 

[Carl Stouffer]

> I know I've seen them but can't seem to find a vacuum hose diagram for the engine on a 1975. Anyone have the information?
> Thanks as always. Hal

Hal,

There's one for a '77 on the photo site:

http://www.gmcmhphotos.com/photos/dual-vacuum-distributor/p63297-1977-vacuum-schematic.html

Probably pretty similar.
--
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
Solar battery charging. GMCSJ and GMCMI member

 

[hal stclair]

Thanks Carl but the 1977 is different than my 1975.
Hal
--
1977 Royale 101348,

1977 Royale 101586, Diesel powered,

1975 Eleganza II, 101230

1974 Eagle Bus 45',w/slideout

 

[Matt Colie]

> I know I've seen them but can't seem to find a vacuum hose diagram for the engine on a 1975. Anyone have the information?
> Thanks as always. Hal

Hal,

There is isn't much in the manual's section 6T because there isn't much.
Both X7425and X7525 show about the same thing with exception for California.
There are really only three parts.
The distributor advance set shown in 6T - Figures 9 & 10
The intake air stove covered in the early part of 6T
The PCV system gets a little attention at the very beginning of 6T
The single line from the canister to the carburetor base gets an honorable mention in section 8.

Other than that, there is the vacuum sources for the brake booster and the HVAC and those are just more manifold taps.

The 49 state versions are pretty close to pre-EPA rule engines.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit