Nissan and Datsun Workshop Service and Repair Manuals

Valve Seat: Specifications

Cylinder Head Warpage Limit ......................................................................................................................................................................................  0.004
Cylinder Head Overall Thickness [02] ...............................................................................................................................................................  5.390-5.398
Valve Guides:

Standard Inside Diameter ..........................................................................................................................................................................  .2362-.2369
Stem to Guide Clearance:

Intake ..................................................................................................................................................................................................  .0008-.0021
Exhaust ...............................................................................................................................................................................................  .0016-.0029

Valve Seats:

Seat Width:

Intake ......................................................................................................................................................................................................  .055-.067
Exhaust ...................................................................................................................................................................................................  .067-.079

[02] --

Minimum thickness is overall thickness, less warpage limit, combined with amount of grinding of cylinder block gasket surface.