Home » Public Forums » GMCnet » Exhaust bang bang bang (going down steep grades)
| Re: Exhaust bang bang bang [message #366782 is a reply to message #366776] |
Tue, 14 September 2021 19:18   |
boybach
Messages: 566
Registered: December 2020
Location: Vancouver Island
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JohnL455 wrote on Tue, 14 September 2021 13:27Mine will “burble” during long engine braking, but I have my exact GM copy exhaust system installed so it is barely noticeable.
I suspect your idle mixture may be adding extra fuel causing this to be more pronounced. If you have 3” stainless this may exaggerate it. Correct mixture is balanced best idle just at the lean drop edge. “Emissions” setting would be 25 RPM lean drop per side to get 50 RPM lean drop.
I have no way to check or test emissions, should I adjust the carburetor? How do I do that?
BTW, I have no idea what this statement means  "Correct mixture is balanced best idle just at the lean drop edge."
Larry
Larry - Victoria BC -
1977 ex-Palm Beach "Ol' Leaky" 40,000 miles, PO said everything working but forgot the word NOT. Atwood helium fridge, water heater & furnace. SS exhaust system, Onan, Iota Converter, R134A, New fuel lines & heat exchange hoses
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Exhaust bang bang bang
By: boybach on Tue, 14 September 2021 11:18 |
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Re: Exhaust bang bang bang
By: JohnL455 on Tue, 14 September 2021 15:27 |
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[GMCnet] Re: Exhaust bang bang bang
By: Keith V on Tue, 14 September 2021 16:38 |
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Re: [GMCnet] Re: Exhaust bang bang bang
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[GMCnet] Re: Exhaust bang bang bang
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Re: [GMCnet] Re: Exhaust bang bang bang
By: boybach on Tue, 14 September 2021 21:17 |
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Re: [GMCnet] Re: Exhaust bang bang bang
By: boybach on Tue, 14 September 2021 19:11 |
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Re: Exhaust bang bang bang
By: boybach on Tue, 14 September 2021 19:18 |
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Re: Exhaust bang bang bang
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[GMCnet] Re: Exhaust bang bang bang
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Re: Exhaust bang bang bang
By: JohnL455 on Wed, 15 September 2021 08:18 |
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Re: Exhaust bang bang bang
By: boybach on Wed, 15 September 2021 11:20 |
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[GMCnet] Re: Exhaust bang bang bang
By: sgltrac on Wed, 15 September 2021 11:32 |
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Re: [GMCnet] Re: Exhaust bang bang bang
By: boybach on Wed, 15 September 2021 12:35 |
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Re: [GMCnet] Re: Exhaust bang bang bang
By: mghamms on Wed, 15 September 2021 15:17 |
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Re: [GMCnet] Re: Exhaust bang bang bang
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Re: [GMCnet] Re: Exhaust bang bang bang
By: boybach on Wed, 15 September 2021 21:29 |
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[GMCnet] Re: Exhaust bang bang bang
By: sgltrac on Wed, 15 September 2021 16:08 |
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Re: [GMCnet] Re: Exhaust bang bang bang
By: boybach on Wed, 15 September 2021 17:07 |
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[GMCnet] Re: Exhaust bang bang bang
By: Rob on Wed, 15 September 2021 17:13 |
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Re: [GMCnet] Re: Exhaust bang bang bang
By: boybach on Wed, 15 September 2021 21:32 |
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[GMCnet] Re: Exhaust bang bang bang
By: Rob on Wed, 15 September 2021 21:38 |
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Re: Exhaust bang bang bang
By: JohnL455 on Wed, 15 September 2021 15:56 |
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Re: Exhaust bang bang bang
By: boybach on Wed, 15 September 2021 17:03 |
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Re: Exhaust bang bang bang
By: boybach on Wed, 15 September 2021 17:17 |
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Re: Exhaust bang bang bang
By: boybach on Thu, 16 September 2021 14:54 |
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[GMCnet] Re: Exhaust bang bang bang
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[GMCnet] Re: Exhaust bang bang bang
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[GMCnet] Re: Exhaust bang bang bang
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Re: [GMCnet] Re: Exhaust bang bang bang
By: boybach on Thu, 16 September 2021 21:11 |
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[GMCnet] Re: Exhaust bang bang bang
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Re: [GMCnet] Re: Exhaust bang bang bang
By: boybach on Fri, 17 September 2021 09:28 |
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[GMCnet] Re: Exhaust bang bang bang
By: jimk on Fri, 17 September 2021 09:47 |
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Re: [GMCnet] Re: Exhaust bang bang bang
By: boybach on Fri, 17 September 2021 10:40 |
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[GMCnet] Re: Exhaust bang bang bang
By: Rob on Fri, 17 September 2021 11:22 |
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Re: [GMCnet] Re: Exhaust bang bang bang
By: boybach on Fri, 17 September 2021 11:39 |
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