Carb Backfire, Any answers to the problem? |
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Carb Backfire, Any answers to the problem? |
xperu |
Nov 25 2010, 12:11 PM
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#1
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TEXAS Group: Members Posts: 597 Joined: 13-June 06 From: League City Texas Member No.: 6,213 Region Association: None |
Recently my dual Webber carb'd 914 is popping and back firing during acceleration and letting off the accelerator, they have been on my car for a year or so and I haven’t them and the gas is new and clean. Anyone have any ideas to the solution. Thanks Mike (IMG:style_emoticons/default/icon8.gif)
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914itis |
Nov 25 2010, 12:23 PM
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#2
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Advanced Member Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States |
Recently my dual Webber carb'd 914 is popping and back firing during acceleration and letting off the accelerator, they have been on my car for a year or so and I haven’t them and the gas is new and clean. Anyone have any ideas to the solution. Thanks Mike (IMG:style_emoticons/default/icon8.gif) having the same problem, excet that I never have them running right after buying the car, taking it to an expert this weekend to have them looked at, but i beleive that its too rich, needs to be adjustted, timing or dwell ajustment. |
NORD |
Nov 25 2010, 12:36 PM
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#3
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Senior Member Group: Members Posts: 1,505 Joined: 14-September 04 From: Lynden Washington Member No.: 2,756 Region Association: Pacific Northwest |
I use to have popping through the carb and ehaust and found out that the carb linkage had gotten out of abjustment so one side opened before the the other and also closed before the other. after setting linkage the same I now don't get the popping. Might ckeck and see if you have the same problem with linkage to the carbs. (IMG:style_emoticons/default/driving.gif) |
Cap'n Krusty |
Nov 25 2010, 01:07 PM
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#4
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
Popping through the intakes is a sign of a lean condition, not a rich one. The Cap'n
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Jake Raby |
Nov 25 2010, 02:26 PM
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#5
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Yep, lean causes this.. So will tight intake valves.
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BarberDave |
Nov 26 2010, 05:37 AM
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#6
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Barberdave Group: Members Posts: 1,605 Joined: 12-January 03 From: Wauseon Ohio Member No.: 135 Region Association: Upper MidWest |
(IMG:style_emoticons/default/smilie_pokal.gif)
Gosh my ans. follows the Capt'n and Jake I feel intimadated ( sp) but I would pull the idle jets & blow them out. Watch out for the little O-rings. drop one of those in the engine bay , not fun finding it. My 2 cents! Dave (IMG:style_emoticons/default/slap.gif) |
xperu |
Nov 26 2010, 10:17 AM
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#7
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TEXAS Group: Members Posts: 597 Joined: 13-June 06 From: League City Texas Member No.: 6,213 Region Association: None |
Thanks to all of you for your expertise, I have a few days of so I am going to follow your advice. Thanks Mike and Maria
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flylarry |
Nov 30 2010, 12:21 AM
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#8
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Newbie Group: Members Posts: 38 Joined: 22-November 05 From: Carlsbad, CA Member No.: 5,170 |
10 years running IDF 44 webers, Lean mis-fire. Check your idle jets and clean-em. (IMG:style_emoticons/default/grouphug.gif)
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flylarry |
Nov 30 2010, 12:35 AM
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#9
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Newbie Group: Members Posts: 38 Joined: 22-November 05 From: Carlsbad, CA Member No.: 5,170 |
Should have qualified that statement:
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r_towle |
Nov 30 2010, 04:34 PM
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#10
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
agreed, Idle jets.
You have driven it for a year and you have not found the idle jets yet? you must not drive much...they tend to get clogged up often...just a simple thing to remove, blow out and reinstall. Rich |
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