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Re: 3 Angle Valve Seats ...
From: JShadzi@aol.com <JShadzi@aol.com>
To: firstname.lastname@example.org <email@example.com>
Date: Thursday, September 02, 1999 4:39 PM
Subject: Re: 3 Angle Valve Seats ...
>In a message dated 9/2/99 2:21:49 PM Eastern Daylight Time, firstname.lastname@example.org
><< Audi requires it. The valve seat is ground to three angles in the
> > stock engine - a section at 30 degrees to the roof of the combustion
> > chamber and a section at 45 degrees to the inside of the port, joined
> > by a band 2mm wide for an inlet port and 2.4mm wide for an exhaust
> > port. >>
And confirmed by the 84-88 5000s manual, p. 15.8.