| [GMCnet] Need help with carb tubing.. [message #255666] |
Wed, 16 July 2014 21:22  |
Daniel DeLuca
Messages: 120
Registered: June 2014
Karma: 0
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Senior Member |
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Hello All,
I have returned from vacation in Oregon to NJ and am continuing to get the coach into running shape. I have dropped the tanks and replaced all fuel lines, replaced the fuel pump and put on new oil cooler lines. I have given the carb a very light rebuild. (Replaced float and valve, set float hight and a few other things on the top end.) I almost have it back on but one of the pictures I took to help me reassemble was not clear and I need help routing one of the vacuum lines.
The pictures are here
http://imgur.com/a/kSkch
The line I am confused about is the upper left tube leaving the carb if you are facing the windshield. It appears to come from a ’T' but one end of the ’T’ is missing. So I need to know where each end of the ’T’ should lead to. Any help would be greatly appreciated. After I get the carb on its time to start the beast up. Assuming all is well, I will do the breaks, bearings and the shocks before turning my attention to the inside. Its been fun so far.
Dan DeLuca
78’ Eleganza II
Allentown NJ
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| Re: [GMCnet] Need help with carb tubing.. [message #255674 is a reply to message #255666] |
Wed, 16 July 2014 22:33  |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Dan,
In Maintenance Manual X7725, page 6T-4 shows the hose layout.
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
On Jul 16, 2014, at 10:22 PM, Daniel DeLuca wrote:
> Hello All,
>
> I have returned from vacation in Oregon to NJ and am continuing to get the coach into running shape. I have dropped the tanks and replaced all fuel lines, replaced the fuel pump and put on new oil cooler lines. I have given the carb a very light rebuild. (Replaced float and valve, set float hight and a few other things on the top end.) I almost have it back on but one of the pictures I took to help me reassemble was not clear and I need help routing one of the vacuum lines.
>
> The pictures are here
>
> http://imgur.com/a/kSkch
>
> The line I am confused about is the upper left tube leaving the carb if you are facing the windshield. It appears to come from a ’T' but one end of the ’T’ is missing. So I need to know where each end of the ’T’ should lead to. Any help would be greatly appreciated. After I get the carb on its time to start the beast up. Assuming all is well, I will do the breaks, bearings and the shocks before turning my attention to the inside. Its been fun so far.
>
> Dan DeLuca
>
> 78’ Eleganza II
> Allentown NJ
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Need help with carb tubing.. [message #255684 is a reply to message #255674] |
Thu, 17 July 2014 00:33 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Vacuum off of that rear port runs several things. The cabin heater controls, the cruise control, and the temper controlled air valve on the air cleaner are the ones that come to mind. I can not give you th exact routing because mine burned up years ago and I re-plumbed all of it with new hoses after my fire.
Note: The very small hard plastic line going up the valve cover on the driver's side of the engine is going to the heater controls. I believe that the maintenance manual has hose routing diagrams. The exact routing is not important as long as you get vacuum to all of the required items and do not have any leaks.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
[Updated on: Thu, 17 July 2014 00:35] Report message to a moderator |
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| Re: [GMCnet] Need help with carb tubing.. [message #255688 is a reply to message #255666] |
Thu, 17 July 2014 07:24 |
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SeanKidd
Messages: 747
Registered: June 2012
Location: Northern Neck Virginia
Karma: 4
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Senior Member |
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Dan, my 73 has a port on the manifold in that vicinity...you want manifold vacuum for that branch, if you use a carburetor port, use one below the throttle plate.
Sean ...Franklin (Sussex), New Jersey
Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers
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| Re: [GMCnet] Need help with carb tubing.. [message #255708 is a reply to message #255674] |
Thu, 17 July 2014 15:20 |
Daniel DeLuca
Messages: 120
Registered: June 2014
Karma: 0
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Senior Member |
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Thanks Guys,
With manual X7725 I was able to figure it out, I have manual X7525 here and it does not have those helpful diagrams. PS I had one of the tubes attached to the wrong place, so please do not use a my pictures as a reference.
Dan
On Jul 16, 2014, at 11:33 PM, John Wright wrote:
> Dan,
> In Maintenance Manual X7725, page 6T-4 shows the hose layout.
> JR Wright
> 78 Buskirk Stretch
> 75 Avion
> Michigan
>
> On Jul 16, 2014, at 10:22 PM, Daniel DeLuca wrote:
>
>> Hello All,
>>
>> I have returned from vacation in Oregon to NJ and am continuing to get the coach into running shape. I have dropped the tanks and replaced all fuel lines, replaced the fuel pump and put on new oil cooler lines. I have given the carb a very light rebuild. (Replaced float and valve, set float hight and a few other things on the top end.) I almost have it back on but one of the pictures I took to help me reassemble was not clear and I need help routing one of the vacuum lines.
>>
>> The pictures are here
>>
>> http://imgur.com/a/kSkch
>>
>> The line I am confused about is the upper left tube leaving the carb if you are facing the windshield. It appears to come from a ’T' but one end of the ’T’ is missing. So I need to know where each end of the ’T’ should lead to. Any help would be greatly appreciated. After I get the carb on its time to start the beast up. Assuming all is well, I will do the breaks, bearings and the shocks before turning my attention to the inside. Its been fun so far.
>>
>> Dan DeLuca
>>
>> 78’ Eleganza II
>> Allentown NJ
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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