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Valve seat cutters.

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Discussion Starter #1
Does this make any sense?

The shop manual lists 45* for the primary valve seat surface. Also has listed a part number for the cutter. However, at the shop all they had was a 46degree cutter. He told me (the service guru), "yeah, you don't cut a 45* seat with 45, you use a 46*. Otherwise your valves would slam every time they closed."

Here's the question.

What angle valve seat cutter do you use for the 45* seat surface?
 

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You always use a 46 degree cutter to make the valve seat int eh head 1 degree off of the valve face. The valve face gets put at 45 degrees. As the valve seat and face wear into each other, they seal perfectly.

BC.
 
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