Acura Integra All Integra Except ITR

Popping/backfiring while cranking motor

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Old May 3, 2004 | 09:16 PM
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Default Popping/backfiring while cranking motor

Car is a 94 GSR and a friend of mine just dropped it off at my house. Everything is stock. Before i take a closer look at it tomorrow i would like some input from others. Friend said it stalled while driving 90mph on the freeway. Now it just cranks over like normal but pops and backfires through the tail pipe and does not start up. Timing belt seems to be ok cuz i could see the intake cam turning (oil cap removed) while cranking the motor. I'm thinking its ignition related but all ideas are welcome. Thanks.
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Old May 3, 2004 | 10:21 PM
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Default Re: Popping/backfiring while cranking motor (fourthgenhatchB17)

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Old May 3, 2004 | 10:24 PM
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Default Re: Popping/backfiring while cranking motor (fourthgenhatchB17)

Did you check the actual timing? Sounds like a timing problem. The belt might be loose and caused a cam or both cams to jump teeth.
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Old May 3, 2004 | 10:36 PM
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Default Re: Popping/backfiring while cranking motor (ThE bEe GuY)

True, i was thinkin something along those lines as well. Or i was thinkin the actual dist. might have moved (but its tight) since it was recently replaced.
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Old May 3, 2004 | 10:38 PM
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FR-MOB: ThE bEe GuY's Avatar
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Default Re: Popping/backfiring while cranking motor (fourthgenhatchB17)

Oh yea, also check to see if the dist. rotor screw is still in place. Those ******* screws are notorious for backing out
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Old May 3, 2004 | 10:42 PM
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Default Re: Popping/backfiring while cranking motor (ThE bEe GuY)

That one is always on the list. Nevertheless, good call.
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