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                           Engines-List Digest Archive
                                      ---
                     Total Messages Posted Sun 06/26/05: 3
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Today's Message Index:
----------------------
 
     1. 08:35 AM - IO360 backfiring  (BERNDSENCO@aol.com)
     2. 09:06 AM - Re: IO360 backfiring  (John Grosse)
     3. 08:06 PM - Re: IO360 backfiring  (steve korney)
 
 
 
________________________________  Message 1  _____________________________________


Time: 08:35:14 AM PST US
From: BERNDSENCO@aol.com
Subject: Engines-List: IO360 backfiring

--> Engines-List message posted by: BERNDSENCO@aol.com

I have an IO-360 180 HP constant speed in my RV-7, 125 hours SMOH.   When I 
pull the throttle while on decent in the pattern, and also while taxiing  at 
idle, I'm getting a lot of popping/backfiring from the exhaust.  It  started 
mildly about 50 hours ago and is getting much worse.  I  have friend who has the

same engine (200 hours) in his RV-8 and his has  been doing the same.

I had one person claim vacuum leaks can cause this, so I went over the  
entire induction system and verified everything is tight.  Any suggestions  on
what 
is causing this?  Other than this, the engine runs great.

Thanks,

Jon






________________________________  Message 2  _____________________________________


Time: 09:06:47 AM PST US
From: John Grosse <grosseair@comcast.net>
Subject: Re: Engines-List: IO360 backfiring

--> Engines-List message posted by: John Grosse <grosseair@comcast.net>

Did you check the timing? I What type of ignition system do you have?

John Grosse
IO-360 B1E in a Piper Arrow

BERNDSENCO@aol.com wrote:

>--> Engines-List message posted by: BERNDSENCO@aol.com
>
>I have an IO-360 180 HP constant speed in my RV-7, 125 hours SMOH.   When I 
>pull the throttle while on decent in the pattern, and also while taxiing  at 
>idle, I'm getting a lot of popping/backfiring from the exhaust.  It  started 
>mildly about 50 hours ago and is getting much worse.  I  have friend who has the

>same engine (200 hours) in his RV-8 and his has  been doing the same.
>
>I had one person claim vacuum leaks can cause this, so I went over the  
>entire induction system and verified everything is tight.  Any suggestions  on
what 
>is causing this?  Other than this, the engine runs great.
>
>Thanks,
>
>Jon
>
>
>  
>






________________________________  Message 3  _____________________________________


Time: 08:06:38 PM PST US
From: "steve korney" <s_korney@hotmail.com>
Subject: RE: Engines-List: IO360 backfiring

--> Engines-List message posted by: "steve korney" <s_korney@hotmail.com>

Exhaust gaskets.....


Best... Steve


----Original Message Follows----
From: BERNDSENCO@aol.com
Subject: Engines-List: IO360 backfiring

--> Engines-List message posted by: BERNDSENCO@aol.com

I have an IO-360 180 HP constant speed in my RV-7, 125 hours SMOH.   When I
pull the throttle while on decent in the pattern, and also while taxiing  at
idle, I'm getting a lot of popping/backfiring from the exhaust.  It  started
mildly about 50 hours ago and is getting much worse.  I  have friend who has 
the
same engine (200 hours) in his RV-8 and his has  been doing the same.

I had one person claim vacuum leaks can cause this, so I went over the
entire induction system and verified everything is tight.  Any suggestions  
on what
is causing this?  Other than this, the engine runs great.

Thanks,

Jon