John Deere H valves

[Pioneer]

Does anyone know the valve seat angles for the John Deere H

 

[P Browning]

From Section 2 of the John Deere H Service Guide, we have - - -

2-5. Valve Stem, Face & Seat Data -- Intake and exhaust valves are not interchangeable and seat directly in cylinder head. Check valves and seats against the values listed hereafter. Seats can be narrowed, using 20 and 70-degree stones.

Valve stem diameter = 0.3715-0.3725
Valve Stem Clearance in Guides = 0.0035-0.0060
Valve Face Angle (Intake) = 30 degrees
Valve Seat Angle (Intake) = 30 degrees
Valve face Angle (Exhaust) = 45 degrees
Valve Seat Angle (Exhaust) = 45 degrees
Valve Seat Width = 1/8-inch
Restoration Site, JD-H