Home » Public Forums » GMCnet » Vacuum (vacuum diagrams)
| Vacuum [message #305275] |
Thu, 11 August 2016 09:25  |
G?Rs66
Messages: 56
Registered: May 2016
Location: Wautoma, Wi.
Karma: 1
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Are there any other vacuum diagrams other than the one on the air cleaner. I have the one for the A/C I am looking for the cruise control can't seem to find any in any of the manuals I have
1978 Transmode
1966 GTO{frame off restor}
Wautoma, Wi (About 35 miles west of Oshkosh, Wi)
Gene Don't Do Facebook
but Ronny does
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| Re: [GMCnet] Vacuum [message #305277 is a reply to message #305275] |
Thu, 11 August 2016 09:58  |
Olly Schmidt
Messages: 1265
Registered: February 2014
Location: Germany and Scottsville, ...
Karma: 8
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I assume you did look in the GMC 1975 & 1976 Maintenenace Manual page
652ff and did not find anything that helps?
--
Best regards
Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA
'76a Eleganza II, VA
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Best regards
Olly Schmidt
PGP Key ID: 0x18a9 3a1f 4196 bf22
'76a Eleganza II, VA
'73 Sequoia, SH, Germany
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| Re: [GMCnet] Vacuum [message #305278 is a reply to message #305275] |
Thu, 11 August 2016 10:00 |
Olly Schmidt
Messages: 1265
Registered: February 2014
Location: Germany and Scottsville, ...
Karma: 8
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Especially this paragraph:
To determine the condition of the diaphragm, remove hose from servo unit
and apply 14 inches of
vacuum to the tube opening and hold in for one minute. The vacuum shall
not leak down more than
5 inches of vacuum in one minute. If leakage is detected, replace servo.
--
Best regards
Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA
'76a Eleganza II, VA
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Best regards
Olly Schmidt
PGP Key ID: 0x18a9 3a1f 4196 bf22
'76a Eleganza II, VA
'73 Sequoia, SH, Germany
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| Re: [GMCnet] Vacuum [message #305279 is a reply to message #305278] |
Thu, 11 August 2016 10:13 |
G?Rs66
Messages: 56
Registered: May 2016
Location: Wautoma, Wi.
Karma: 1
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Testing is not the problem. I think there is a vacuum line missing and not
sure witch one
On Aug 11, 2016 10:01 AM, "Peer Oliver Schmidt GMC"
wrote:
> Especially this paragraph:
>
> To determine the condition of the diaphragm, remove hose from servo unit
> and apply 14 inches of
> vacuum to the tube opening and hold in for one minute. The vacuum shall
> not leak down more than
> 5 inches of vacuum in one minute. If leakage is detected, replace servo.
>
> --
> Best regards
>
> Peer Oliver Schmidt
> PGP Key ID: 0x83E1C2EA
>
> '76a Eleganza II, VA
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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1978 Transmode
1966 GTO{frame off restor}
Wautoma, Wi (About 35 miles west of Oshkosh, Wi)
Gene Don't Do Facebook
but Ronny does
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| Re: Vacuum [message #305280 is a reply to message #305275] |
Thu, 11 August 2016 10:42 |
77Royale
Messages: 461
Registered: June 2014
Location: Mid Michigan
Karma: 6
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I dont have a diagram, but do have a 77 transmode with working Cruise, I can take photos, make a sketch if needed.
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
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| Re: Vacuum [message #305282 is a reply to message #305275] |
Thu, 11 August 2016 11:18 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Mine has a vacuum line to the manifold, and another to the dump valve on the brake pedal bracket. The valve is often a problem.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Vacuum [message #305284 is a reply to message #305280] |
Thu, 11 August 2016 11:34 |
G?Rs66
Messages: 56
Registered: May 2016
Location: Wautoma, Wi.
Karma: 1
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The sketch would help you don't have to take pic's thank you anyway the
dump valve under the dashboard is supposed to go to a t. I am guesing at
the servo but I don't see one
On Aug 11, 2016 10:43 AM, "Wayne Rogewski" wrote:
> I dont have a diagram, but do have a 77 transmode with working Cruise, I
> can take photos, make a sketch if needed.
> --
> 77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson
> carb and dizzy.
> Mid Michigan
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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1978 Transmode
1966 GTO{frame off restor}
Wautoma, Wi (About 35 miles west of Oshkosh, Wi)
Gene Don't Do Facebook
but Ronny does
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|
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| Re: [GMCnet] Vacuum [message #305285 is a reply to message #305284] |
Thu, 11 August 2016 11:56 |
G?Rs66
Messages: 56
Registered: May 2016
Location: Wautoma, Wi.
Karma: 1
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I'll have to wait until I get back to my home area to download the manual I
hate the Internet on my phone
On Aug 11, 2016 11:34 AM, "GENE KNUEPPEL" wrote:
> The sketch would help you don't have to take pic's thank you anyway the
> dump valve under the dashboard is supposed to go to a t. I am guesing at
> the servo but I don't see one
> On Aug 11, 2016 10:43 AM, "Wayne Rogewski" wrote:
>
>> I dont have a diagram, but do have a 77 transmode with working Cruise, I
>> can take photos, make a sketch if needed.
>> --
>> 77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson
>> carb and dizzy.
>> Mid Michigan
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
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1978 Transmode
1966 GTO{frame off restor}
Wautoma, Wi (About 35 miles west of Oshkosh, Wi)
Gene Don't Do Facebook
but Ronny does
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|
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| Re: Vacuum [message #305287 is a reply to message #305275] |
Thu, 11 August 2016 12:12 |
77Royale
Messages: 461
Registered: June 2014
Location: Mid Michigan
Karma: 6
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Senior Member |
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Sorry up front If I dont have correct names. But I have a vacuum line that runs up under the dash visible from the driver side hood, Following that line back, it has a T just before the vacuum pot with the ball chain on it going to the throttle. So one line into that Vacuum pot, and the other end of that T runs to a second T close to the transducer. One line runs to the larger rear most port on the transducer, and the other end of that second T, runs back up to the Top port on the transducer. The smaller (last) port has a line which runs to the back of the carb.
Hope this helps.
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
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| Re: [GMCnet] Vacuum [message #305288 is a reply to message #305285] |
Thu, 11 August 2016 12:20 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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You must be older than 15
FREE WIFI @ Mickey D
> On Aug 11, 2016, at 9:56 AM, GENE KNUEPPEL wrote:
>
> I'll have to wait until I get back to my home area to download the manual I
> hate the Internet on my phone
>> On Aug 11, 2016 11:34 AM, "GENE KNUEPPEL" wrote:
>>
>> The sketch would help you don't have to take pic's thank you anyway the
>> dump valve under the dashboard is supposed to go to a t. I am guesing at
>> the servo but I don't see one
>>> On Aug 11, 2016 10:43 AM, "Wayne Rogewski" wrote:
>>>
>>> I dont have a diagram, but do have a 77 transmode with working Cruise, I
>>> can take photos, make a sketch if needed.
>>> --
>>> 77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson
>>> carb and dizzy.
>>> Mid Michigan
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: [GMCnet] Vacuum [message #305290 is a reply to message #305287] |
Thu, 11 August 2016 13:23 |
G?Rs66
Messages: 56
Registered: May 2016
Location: Wautoma, Wi.
Karma: 1
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Ok thanks when I get back home l will check that out
On Aug 11, 2016 12:13 PM, "Wayne Rogewski" wrote:
> Sorry up front If I dont have correct names. But I have a vacuum line
> that runs up under the dash visible from the driver side hood, Following
> that
> line back, it has a T just before the vacuum pot with the ball chain on it
> going to the throttle. So one line into that Vacuum pot, and the other
> end of that T runs to a second T close to the transducer. One line runs
> to the larger rear most port on the transducer, and the other end of that
> second T, runs back up to the Top port on the transducer. The smaller
> (last) port has a line which runs to the back of the carb.
>
> Hope this helps.
> --
> 77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson
> carb and dizzy.
> Mid Michigan
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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1978 Transmode
1966 GTO{frame off restor}
Wautoma, Wi (About 35 miles west of Oshkosh, Wi)
Gene Don't Do Facebook
but Ronny does
|
|
|
|
| Re: [GMCnet] Vacuum [message #305291 is a reply to message #305288] |
Thu, 11 August 2016 13:24 |
G?Rs66
Messages: 56
Registered: May 2016
Location: Wautoma, Wi.
Karma: 1
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Member |
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Not to many Mky Ds i can get a Simi Truck into
On Aug 11, 2016 12:21 PM, "Mr.erf" wrote:
> You must be older than 15
>
> FREE WIFI @ Mickey D
>
>
>
>
>
>> On Aug 11, 2016, at 9:56 AM, GENE KNUEPPEL wrote:
>>
>> I'll have to wait until I get back to my home area to download the
> manual I
>> hate the Internet on my phone
>>> On Aug 11, 2016 11:34 AM, "GENE KNUEPPEL" wrote:
>>>
>>> The sketch would help you don't have to take pic's thank you anyway the
>>> dump valve under the dashboard is supposed to go to a t. I am guesing at
>>> the servo but I don't see one
>>>> On Aug 11, 2016 10:43 AM, "Wayne Rogewski" wrote:
>>>>
>>>> I dont have a diagram, but do have a 77 transmode with working
> Cruise, I
>>>> can take photos, make a sketch if needed.
>>>> --
>>>> 77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies,
> Patterson
>>>> carb and dizzy.
>>>> Mid Michigan
>>>>
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
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1978 Transmode
1966 GTO{frame off restor}
Wautoma, Wi (About 35 miles west of Oshkosh, Wi)
Gene Don't Do Facebook
but Ronny does
|
|
|
|
| Re: [GMCnet] Vacuum [message #305333 is a reply to message #305291] |
Fri, 12 August 2016 19:32 |
G?Rs66
Messages: 56
Registered: May 2016
Location: Wautoma, Wi.
Karma: 1
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Member |
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Well what do you know. I followed the vacuum line and found the line to the
back of the servo disconnected. Hooked it back up and boom cruise control.
I like it! Thanks for all the help.
On Aug 11, 2016 1:24 PM, "GENE KNUEPPEL" wrote:
> Not to many Mky Ds i can get a Simi Truck into
> On Aug 11, 2016 12:21 PM, "Mr.erf" wrote:
>
>> You must be older than 15
>>
>> FREE WIFI @ Mickey D
>>
>>
>>
>>
>>
>>> On Aug 11, 2016, at 9:56 AM, GENE KNUEPPEL wrote:
>>>
>>> I'll have to wait until I get back to my home area to download the
>> manual I
>>> hate the Internet on my phone
>>>> On Aug 11, 2016 11:34 AM, "GENE KNUEPPEL" wrote:
>>>>
>>>> The sketch would help you don't have to take pic's thank you anyway the
>>>> dump valve under the dashboard is supposed to go to a t. I am guesing
>> at
>>>> the servo but I don't see one
>>>> > On Aug 11, 2016 10:43 AM, "Wayne Rogewski" wrote:
>>>> >
>>>> > I dont have a diagram, but do have a 77 transmode with working
>> Cruise, I
>>>> > can take photos, make a sketch if needed.
>>>> > --
>>>> > 77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies,
>> Patterson
>>>> > carb and dizzy.
>>>> > Mid Michigan
>>>> >
>>>> > _______________________________________________
>>>> > GMCnet mailing list
>>>> > Unsubscribe or Change List Options:
>>>> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
_______________________________________________
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1978 Transmode
1966 GTO{frame off restor}
Wautoma, Wi (About 35 miles west of Oshkosh, Wi)
Gene Don't Do Facebook
but Ronny does
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