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10-30-2017, 12:11 PM
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#1 |
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Registered User
Join Date: Feb 2011
Location: Senatobia, MS
Posts: 1,300
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Carb Rebuild Vac. Lines Help
I am finally going to remove my quadrajet carb and rebuild. In the meantime, I would like to clean up some of the vacuum line spaghetti that may no longer be necessary.
Most of this stuff fell apart in my hand from being so brittle but regardless, I have taken some pictures and would appreciate help in identifying what these are, what they do and if it is safe to remove. Truck is an 85 with a 305 and 700R4. Had a smog pump and tubes into the manifolds but those are all gone. There is no emissions requirement where I live. I would like to keep the cruise and the vapor canister. some of this stuff is attached to the thermostat housing...why?? Pics as promised... Last pic is of the carb before removal.
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Once a Marine, always a Marine! My (Her) 57 Build "Beverly" My 66 Build "Betty" My 85 C10 "Old Blue" Help Me Find "Old Blue" OLD BLUE PART II Last edited by LDO; 10-30-2017 at 02:50 PM. |
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10-30-2017, 02:53 PM
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#2 |
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Registered User
Join Date: Feb 2011
Location: Senatobia, MS
Posts: 1,300
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Re: Emissions I.D. Help
Sorry, fixed the pictures...
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Once a Marine, always a Marine! My (Her) 57 Build "Beverly" My 66 Build "Betty" My 85 C10 "Old Blue" Help Me Find "Old Blue" OLD BLUE PART II |
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11-01-2017, 08:21 AM
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#3 |
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Registered User
Join Date: Feb 2011
Location: Senatobia, MS
Posts: 1,300
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Re: Emissions I.D. Help
Anyone???
Is this thing on??? 
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Once a Marine, always a Marine! My (Her) 57 Build "Beverly" My 66 Build "Betty" My 85 C10 "Old Blue" Help Me Find "Old Blue" OLD BLUE PART II |
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11-01-2017, 10:01 AM
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#4 |
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Registered User
Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,620
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Re: Emissions I.D. Help
Emissions to keep IMO:
PCV - keeps blowby crap out of your oil and the air THERMAC - helps with warm up and preventing carb icing. Vapor Canister - captures gas fumes from tank for later burning. Much of the rest was an ad-hock pre computer pre injection pre catalyst kluge that often traded performance and/or efficiency to limit HC and NOx, with mixed results. The reason so much is hooked to the thermostat housing is so it could either be turned on or off when the motor warmed up, depending on the gizmo in question. |
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11-02-2017, 05:13 AM
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#5 |
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Registered User
Join Date: Mar 2005
Location: Fairfield Maine
Posts: 1,759
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Re: Emissions I.D. Help
I might have a chilton book ,i will let you know this week end
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