[Land-speed] Piston Problem

Dave Dahlgren ddahlgren at snet.net
Sat Jan 24 16:48:40 MST 2009


how about if you gave it less..lol are you using a lambda meter to get even 
the slightest clue how rich or lean you might be?? If not get with it...
----- Original Message ----- 
From: "Elon" <saltfever at comcast.net>
To: "land-speed submit" <land-speed at autox.team.net>
Sent: Saturday, January 24, 2009 6:42 PM
Subject: [Land-speed] Piston Problem


> Is the bare area under the exhaust valve?  If so, it may be clean because
> the carbon is burned off that area. I agree with Skip that 15psi is not 
> too
> much if fuel and advance are appropriate.  A suggestion would be to start 
> a
> thread on Landracing.com so you could post magnified pics of  CLEAN plugs
> after a WOT pull. Also, installing and O2 sensor and data record would be
> helpful. -Elon
>
>
>
> From: "Scott Cowle"
>
> (snip . . . ) The half of the piston closest to the sparkplug has what I
> would call a normal amount of carbon on it but the half furthest from the
> plug has none. It does not matter how much fuel I give the motor the 
> results
> are the same. This suggests to me that the flame is getting snuffed out as
> it goes across the piston .


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