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*help* H23A engine slapping noise while accelerating

 
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Old 02-25-2011, 10:40 AM
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Icon5 *help* H23A engine slapping noise while accelerating

Hey guys thanks for reading, I noticed while driving my new lude (second hand 1992 si) that there was a kind of slapping noise while I accelerate but you can't really hear it when just idling or at constant RPM's.. I did accidentally run some standard unleaded through it and I think some is still in the tank mixed with some premium, could that be the problem? Or something to do with the exhaust system? Kinda stumped on this one any help would be great!!!
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Old 02-25-2011, 01:39 PM
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Re: *help* H23A engine slapping noise while accelerating

if the slapping noise that you are talking about is coming from the driver's side of your engine bay i would check the timing and balance shaft belts ASAP, along with the accessory belts, just to be safe.
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Old 02-25-2011, 06:19 PM
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Re: *help* H23A engine slapping noise while accelerating

I remember when i put some regular gas in my h23 and it made some knocking noises but i put some octain booster in er and it went away.
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Old 02-28-2011, 09:22 AM
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Re: *help* H23A engine slapping noise while accelerating

Hey guys thanks for the suggestion checked them both out but didn't seem to be the problem, so I had a bit more of a look at the exhaust system and found a small hole in it up near the gear box (bit hard to find) so took it in and got it welded up! No more slapping noises!!
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