[Chevelle-list] Strange exhaust noise

[gm66 at netscape.com]

I use a half pint of fuel oil in approx. 20 galllons of gas about every 3rd fillup. Works great. gm66

--- F.Gondermann at comcast.net wrote:

From: "Frank Gondermann" <F.Gondermann at comcast.net>
To: "'The Chevelle Mailing List'" <chevelle-list at chevelles.net>
Subject: Re: [Chevelle-list] Strange exhaust noise
Date: Wed, 9 May 2007 16:26:59 -0500

What is the brand of top oil you are using?

Frank

-----Original Message-----
From: chevelle-list-bounces at chevelles.net [mailto:chevelle-list-bounces at chevelles.net] On Behalf Of gm66 at netscape.com
Sent: Monday, May 07, 2007 8:04 PM
To: The Chevelle Mailing List
Subject: Re: [Chevelle-list] Strange exhaust noise

It may be a exaust valve sticking at idle. Put some top oil in the gas to re-lubricate the valve stems since vechicle was in storage. Not that uncommon. I always put some in my cars either before storing or right after. The valve stems get dry and hold open the valve/s alittle. gm66

--- 66chevelless396 at comcast.net wrote:

From: 66chevelless396 at comcast.net
To: Chevelle-list at chevelles.net (Chevelle List)
Subject: [Chevelle-list] Strange exhaust noise
Date: Mon, 07 May 2007 14:50:10 +0000

I started my Chevelle for the first time this weekend since 5 months winter storage.  I noticed a strange exhaust sound at idle coming out the left side pipe that was not noticed last fall.  It is random �sometimes 3 in a row followed by a couple several seconds apart  The sound sounds like tuft, tuft tuft��.tuft��tuft�..tuft, tuft.  It doesn�t stumble and if I increase RPM it runs without any missing.  It has clean plugs all gapped to 038, new Delco cap, new Delco rotor.  Just switched to Pertonix  Ignitor ll with Flame thrower coil.  But ran the car just before installing Pertronix and it did the same noise I described above with points/condenser installed.  Any thoughts what could be causing this sound?

Thank you for the help,

Krister Meister
'66 SS #'s



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