 Carbs pop sometimes |
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| PanelBilly |
 Sep 30 2017, 10:47 AM
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#1
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914 Guru  Group: Members Posts: 5,878 Joined: 23-July 06 From: Kent, Wa Member No.: 6,488 Region Association: Pacific Northwest 
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I'll be driving along at a steady pace and I'll hear a pop. Any idea what's going on?
Running a 3.0 with PMOs |
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| rhodyguy |
Sep 30 2017, 11:15 AM
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#2
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,235 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Sound from where? Tail pipe or burping back thru a carb?
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| PanelBilly |
Sep 30 2017, 12:14 PM
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#3
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914 Guru Group: Members Posts: 5,878 Joined: 23-July 06 From: Kent, Wa Member No.: 6,488 Region Association: Pacific Northwest
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Carbs. Might be a backfire. Not very loud.
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| rhodyguy |
Sep 30 2017, 12:27 PM
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#4
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,235 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Take the filters off and see if you can get one of the venturi to sneeze. Does it happen at the same rpm consistently?
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| PanelBilly |
Sep 30 2017, 01:01 PM
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#5
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914 Guru Group: Members Posts: 5,878 Joined: 23-July 06 From: Kent, Wa Member No.: 6,488 Region Association: Pacific Northwest
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I'll need to check. What do you mean "sneeze"?
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| GeorgeRud |
Sep 30 2017, 02:53 PM
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#6
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Advanced Member Group: Members Posts: 3,725 Joined: 27-July 05 From: Chicagoland Member No.: 4,482 Region Association: Upper MidWest |
Usually you start looking if the timing is too advanced or the engine is running lean. However, that will usually cause a fairly constant backfire through the carb, not just an occasional one.
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| IronHillRestorations |
Sep 30 2017, 03:35 PM
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#7
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I. I. R. C. Group: Members Posts: 6,802 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
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Pull the idle jets and soak them in carb cleaner.
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