[Shotimes] Re: Audio clip of knock (was: Knocking help needed)

[Adam Parrott]

Scary indeed!

There shouldn't be any cause for worry, though, as I had the lower intake
ports covered up very well during my spark plug checks and was very slow
and careful during intake reinstallation.  If there /had/ been anything
sucked into the lower intake ports, then the sound would have shown up
immediately after restart and probably would have sounded much worse.  If I
dropped something into the upper intake, I most likely would have heard it
when I picked the intake up off the ground or during reinstallation.

As it stands, though, the engine idled *perfectly* for at least two minutes
after I fixed my EGR vaccum leak.  It then gave me a slightly different
stumble than the night before, at which I point I shut the engine off and
waited a moment.  It was upon restart that the sound appeared.

Can you tell I've gone over all this in my mind a million times?  :)

I plan on checking out the exhaust-related ideas later on this afternoon,
moving on to the valvetrain if the exhaust proves to be a dead end.
Barring all else, I have Tony planning a trip to my house to lend his ear,
hands and tools in the quest to find and remove this new-found sound.

Wish us well!  I just hope I'm not looking at a new engine.

Adam

----- Original Message ----- 
From: "George Fourchy" <krazgeo@comcast.net>
To: <TechSHO@topica.com>
Sent: Sunday, May 09, 2004 1:38 PM
Subject: Re: Audio clip of knock (was: Knocking help needed)


On Sun, 9 May 2004 12:21:12 -0500, Joseph van Oss wrote:

>Adam, is it possible something fell into the engine while the intake was
off?

Now THERE's a scary thought!!  Those ports are just sitting there, with
their mouths wide open.....I get chills about that every time I take an
intake off.

And it's totally possible, too, that something is bouncing around in there.
Eeeuucckk!!

George