07-18-2007, 03:28 PM | #26 |
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Location: Chester County PA, USA
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Re: Backfiring
Good eye jhow66. That will make a lean condition for sure.
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72 k/10 short wideside 72 k/5 Blazer 72 K/5 Blazer - obstacle course racer 72 custom/10 8' bed 70 K/5 Blazer 67 C-30 GMC Flat bed 86 GMC K2500 Plow Truck 85 GMC K3500 84 M1008 85 M1008 77 G30 Motor Home 72 Sears 12hp Tractor Glenmoore, Pennsylvania |
07-18-2007, 04:00 PM | #27 |
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Re: Backfiring
True, but most people put the vacuum line back on when they re-install the air cleaner.
Even with the hose off, it will never keep a good running engine from idling or cause a hesitation.
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'68 50th Anniversery LWB Custom Fleetside, '77 305 v-8, turbo 350, factory speed alert (still works), '71 drivetrain w/front discs. Some call it ugly yellow, others call it Ochre '83 Jeep CJ-7, <80,000 miles, original owner '04 Chevy Suburban, 4x4, 2500, 6.0 ltr, Predator Diablo programmer '95 GMC K1500 Extended cab |
07-18-2007, 04:28 PM | #28 |
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Location: Sachse, TEXAS
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Re: Backfiring
If you still want the rebuild kit you will probably have to take the carburetor off and bring it to AZ. There are numbers on it in a few places. They will have to cross-reference those numbers until they find a carb rebuild kit for it. I work there. (part time)
Last edited by LOW DOUGH; 07-18-2007 at 04:28 PM. |
07-18-2007, 04:39 PM | #29 |
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Re: Backfiring
Check for sure that if you put the correct gasket under that carb. I rebuilt a Quadra years ago and used one of the 15 gaskets in the kit that was wrong!!! Changed it and it cured it. Spray carb cleaner around the bottom of carb at idle and if it smooths out, you have a leak.
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07-18-2007, 04:47 PM | #30 |
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Join Date: Oct 2006
Location: Sachse, TEXAS
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Re: Backfiring
I think you can get a base gasket in the chrome aisle (maybe aisle4) also known as the aisle with all the other stuff you don't need like.... Oh I don't even want to say (rice burner stuff). It would be a Mr. Gasket one I think. Gasket between intake and carb
Last edited by LOW DOUGH; 07-18-2007 at 04:47 PM. |
07-18-2007, 09:32 PM | #31 |
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Location: Knoxville Tenn.
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Re: Backfiring
Never saw that line hooked to the air cleaner before. It has full time vacumn so what will it be operating on the air cleaner? The vacumn line that feeds the air cleaner goes thru a water temp switch off the themo housing.
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07-19-2007, 06:34 AM | #32 | |
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Re: Backfiring
Quote:
I was remembering small blockness, maybe even newer big block models. It will operate the vacuum motor that draws intake air from the pipe that drops down to the exhaust manifold shroud. On small blocks, it will go to a temp sensor mounted in the air cleaner, which regulates vacuum to the motor mounted in the snorkel of the air cleaner housing. Still won't affect idle much on a good running engine. Sorry for the incorectness...
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'68 50th Anniversery LWB Custom Fleetside, '77 305 v-8, turbo 350, factory speed alert (still works), '71 drivetrain w/front discs. Some call it ugly yellow, others call it Ochre '83 Jeep CJ-7, <80,000 miles, original owner '04 Chevy Suburban, 4x4, 2500, 6.0 ltr, Predator Diablo programmer '95 GMC K1500 Extended cab |
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07-19-2007, 09:51 AM | #33 |
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Re: Backfiring
Pyro, are you posting the same question under another thread?
http://67-72chevytrucks.com/vboard/s...d.php?t=250187 |
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