1974 Engine Vacuum Line Diagram

[Randy Hecht]

Anyone have a handy, easy to follow diagram or better pictures for how the vacuum lines are run for a ‘74 with a 455?
I had to pull the intake off and change a few bent push rods and lifters out. Took lots of pictures of the disassembly and they’ve all disappeared!

Any photos or clear pencil drawings will work.

Chaplain Randy Hecht
Roswell, GA
Chaplains are ready to Listen when you're ready to talk.

1974 Canyon Lakes GMC the Unicorn Express
80mm Front Disc and a work in progress
Electric Brake Vacuum System

 

[Bruce Hart]

Did you check your maintenance manual?

Here is how the TVS is plumbed:
file:///C:/Users/B%20hart/AppData/Local/Temp/Temp1_X7425.zip/X7425.pdf

On Wed, Aug 5, 2020 at 3:43 PM Randy Hecht via Gmclist <

> Anyone have a handy, easy to follow diagram or better pictures for how the
> vacuum lines are run for a ‘74 with a 455?
> I had to pull the intake off and change a few bent push rods and lifters
> out. Took lots of pictures of the disassembly and they’ve all disappeared!
>
> Any photos or clear pencil drawings will work.
>
> Chaplain Randy Hecht
> Roswell, GA
> Chaplains are ready to Listen when you're ready to talk.
>
> 1974 Canyon Lakes GMC the Unicorn Express
> 80mm Front Disc and a work in progress
> Electric Brake Vacuum System
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class

 

[bdub]

http://www.gmcmhphotos.com/photos/misc/p66820-vacuum-hose-connections.html

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

http://www.gmcmhphotos.com/photos/misc-junk/p40243-vacuum-connections.html

http://www.gmcmhphotos.com/photos/search.php?searchid=365219

On Wed, Aug 5, 2020 at 4:43 PM Randy Hecht via Gmclist <

> Anyone have a handy, easy to follow diagram or better pictures for how the
> vacuum lines are run for a ‘74 with a 455?
> I had to pull the intake off and change a few bent push rods and lifters
> out. Took lots of pictures of the disassembly and they’ve all disappeared!
>
> Any photos or clear pencil drawings will work.
>
>

 

[Randy Hecht]

Outstanding! Thank you.

Chaplain Randy Hecht
Roswell, GA
Chaplains are ready to Listen when you're ready to talk.

1974 Canyon Lakes GMC the Unicorn Express
80mm Front Disc and a work in progress
Electric Brake Vacuum System

>
> http://www.gmcmhphotos.com/photos/misc/p66820-vacuum-hose-connections.html
>
> http://www.gmcmhphotos.com/photos/dual-vacuum-distributor/p63297-1977-vacuum-schematic.html
>
> http://www.gmcmhphotos.com/photos/misc-junk/p40243-vacuum-connections.html
>
> http://www.gmcmhphotos.com/photos/search.php?searchid=365219
>
>> On Wed, Aug 5, 2020 at 4:43 PM Randy Hecht via Gmclist <

>>
>> Anyone have a handy, easy to follow diagram or better pictures for how the
>> vacuum lines are run for a ‘74 with a 455?
>> I had to pull the intake off and change a few bent push rods and lifters
>> out. Took lots of pictures of the disassembly and they’ve all disappeared!
>>
>> Any photos or clear pencil drawings will work.
>>
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org