saab Workshop Repair Guides

Saab Workshop Service and Repair Manuals

Tools and Equipment > < Depth Gauge, Nut, Mandrel to Remove/Install Valve Guides|Page 845
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Valve Seat: Service and Repair

    Machine valve seats as necessary using a 60 milling cutter. Width of intake valve seat should measure 1-1.5mm and width of exhaust valve seat should
measure 1.25-1.75mm.
    Only a limited amount of material can be removed from exhaust valve face, since the stellite coating must be preserved as much as possible.
Consequently, if valve is badly pitted or worn, it should be replaced.

Tools and Equipment > < Depth Gauge, Nut, Mandrel to Remove/Install Valve Guides|Page 845