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[GMCnet] 1974 Engine Vacuum Line Diagram [message #357517]

Wed, 05 August 2020 16:42

Randy Hecht

Messages: 93
Registered: March 2019
Location: Roswell, GA

Karma: -5

Member

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
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Re: [GMCnet] 1974 Engine Vacuum Line Diagram [message #357518 is a reply to message #357517]

Wed, 05 August 2020 18:40

Bruce Hart

Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming

Karma: 5

Senior Member

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 <
gmclist@list.gmcnet.org> wrote:

> 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
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Bruce Hart 1976 Palm Beach 1977 28' Kingsley La Grange, Wyoming

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Re: [GMCnet] 1974 Engine Vacuum Line Diagram [message #357520 is a reply to message #357517]

Wed, 05 August 2020 19:52

Billy Massey

Messages: 916
Registered: January 2004
Location: Central Texas

Karma: 1

Senior Member

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 <
gmclist@list.gmcnet.org> wrote:

> 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.
>
>
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http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

bdub
bdub.net

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Re: [GMCnet] 1974 Engine Vacuum Line Diagram [message #357522 is a reply to message #357520]

Thu, 06 August 2020 06:20

Randy Hecht

Messages: 93
Registered: March 2019
Location: Roswell, GA

Karma: -5

Member

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

> On Aug 5, 2020, at 20:53, Billy Massey via Gmclist wrote:
>
> 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 > gmclist@list.gmcnet.org> wrote:
>>
>> 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
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