Rottler P69AHD, Operation And Maintenance Manual

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Section 5 Operating Instructions P69AHD Manual
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5-12
Digitizing a Port
• There are three planes that need to be defined by using the hand-wheel in order to create a road map
for the automated digitizing process. It takes three points to define a plane. We will be using X,Y,Z,
A, and B axes in order to define each of the three planes. We will start off by focusing on the exhaust
port. The intake port(s) will be done in the exact same fashion.
• With regards to the exhaust port the three planes that we need to define occur at the exhaust
manifold side, the middle of the port (where the major transition takes place), and lastly the valve seat
area.
• The planes that we define are simply approximate positions. There is nothing precise here. We are
simply defining where we need the probe to move so that it can begin its automatic digitizing process.
See the diagram below.
• Plane #1 will be digitized from the Manifold side.
• Plane #2 can be digitized from either seat or exhaust side, whichever is easiest. With some
experience working with different head you will easily determine from which side is best.
• Plane #3 will be found from seat side and you will position the A axis such that the seat will be facing
upward as you did with the manifold side.