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tebenkof(at)aol.com
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 Posted: Fri Sep 09, 2011 2:26 pm Post subject: Exhaust Leak?? |
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Hello,
I have not been on the list for a few years. I completed my 701 in
early 2006. I am back because this list, at least in those days, had
enough expertise to answer almost anything. Sometimes even with
multiple contradictory answers. So, hoping you experts are still out
there: How do you confirm and locate an exhaust leak you suspect is
there only because you hear it. And is that likely to be my problem.
After a grass landing on a moderately rough strip there was a buzzing,
or perhaps rapid light clapping sound, heard when taxing in. It
correlated with RPM. There were no instrument indications, such as
egt, of any engine problem. Is it likely exhaust, or is there
something else I should be thinking about?
thanks for any help,
Jim in Tualatin
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John Bolding
Joined: 23 May 2006
Posts: 281
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| Posted: Sat Sep 10, 2011 3:18 am Post subject: Exhaust Leak?? |
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Make a plug on the end of the exhaust pipe and introduce 20# of compressed
air, should be able to locate it, will have to turn the prop to bring each
cyl to TDC to isolate each exhaust circuit. Remove plug wires
John
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mksoucy(at)yahoo.com
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| Posted: Sat Sep 10, 2011 3:29 am Post subject: Exhaust Leak?? |
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I would also check your prop closely.
Sent from my iPod
On Sep 9, 2011, at 6:23 PM, tebenkof(at)aol.com wrote:
Hello,
I have not been on the list for a few years. I completed my 701 in early 2006. I am back because this list, at least in those days, had enough expertise to answer almost anything. Sometimes even with multiple contradictory answers. So, hoping you experts are still out there: How do you confirm and locate an exhaust leak you suspect is there only because you hear it. And is that likely to be my problem. After a grass landing on a moderately rough strip there was a buzzing, or perhaps rapid light clapping sound, heard when taxing in. It correlated with RPM. There were no instrument indications, such as egt, of any engine problem. Is it likely exhaust, or is there something else I should be thinking about?
thanks for any help,
Jim in Tualatin
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