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B18b1 Fluttering noise ?!

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Old 10-04-2011, 08:39 AM   #1
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Icon6 B18b1 Fluttering noise ?!

My 95 civic coupe has an integra engine (B18b) in it... anyway, while driving the other day i heard a semi-loud popping noise and an almost back fire kind of sound. After that happened theres been a fluttering noise to the car, ill elaborate as best i can.

When accelerating in ANY gear or in NEUTRAL i get a kind of "flapping" or "fluttering" sound (best i can describe it)
  • The engine, prior to this "event", did have white smoke in the exhaust on hard acceleration
  • The noise only seems to occur when accelerating, ill hear it while accelerating then if i let off the gas and let the engine wind down i wont hear it.
  • Going to check for exhaust leaks or possibly holes ( the car sits very low to the ground and scrapes frequently if im not careful)
  • Also i noticed the oil light going on and off while the car is running and the noise is or isnt present
  • I added oil and the noise seemed to be ..."muffled", it was still present but not as... pronounced..

Any insight or help you guys can provide is GREATLY appreciated!!!

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Old 10-04-2011, 08:55 AM   #2
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Default Re: B18b1 Fluttering noise ?!

check oil levels? after the "pop" sound it made did you feel a loss in power? whats the oil look like?

slightly bent rod? if you rev it up high does it sound like a hard slapping noise?

not sure by what a flapping noise is.. just check for signs of headgasket, bent connecting rod, and the oil light goes on and off check oil level maybe ur pump isnt pumping oil correctly?
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Old 10-10-2011, 08:58 AM   #3
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Default Re: B18b1 Fluttering noise ?!

Thank you for the help lil Dan. Found the problem, i blew a hole the size of a penny in my headers, theres also a crack running off the hole. It cracked right above the header flange gasket!
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