Illustration 1 | g00536713 |
(1) Assembled height of rocker arm support dowels ...
(2) Inside diameter of assembled valve guides ...
(3) Assembled height of valve guides ...
(4) Assembled height of bridge dowels ...
(5) 1W-1749 Spring (inner spring)
- Length under test force ...
79.3 mm (3.12 inch) - Test force ...
361 ± 36 N (80 ± 8 lb) - Free length after test ...
107.0 mm (4.21 inch) - Outside diameter ...
47.9 mm (1.89 inch) - Test force ...
(6) 1W-1748 Spring (outer spring)
- Length under test force ...
84.9 mm (3.34 inch) - Test force ...
758 ± 76 N (170 ± 17 lb) - Free length after test ...
114.0 mm (4.49 inch) - Outside diameter ...
68.0 mm (2.68 inch) - Test force ...
(7) Procedure to tighten the cylinder head nuts
- Lubricate the washer face and the stud threads with 5P-3931 Anti-Seize Compound.
- Assemble the cylinder head, the seals, the gasket and the washers. Tighten the nuts by hand.
- Use the 4C-5850 Stud Tensioner Tool Group in order to simultaneously apply tension to the four studs.
Tension the studs to the following value. ...
40000 ± 1500 kPa (5800 ± 220 psi) - Tighten the nuts by hand.
- Slowly release the pressure.
- Repeat Step 3 through Step 5.
(8) Torque for pressure relief plug ...
(9) Thickness of combustion gasket ...
Surfaces must be parallel within the following dimension. ...
(10) Angle of valve face
- Angle of the inlet valve face ... 30.25 ± 0.25 degrees
- Angle of the exhaust valve face ... 30.25 ± 0.25 degrees
Illustration 2 | g00290111 |
Inlet And Exhaust Valves |
(11) Depth of bore for new valve seat insert ...
(12) Minimum diameter of valve stem ...
Install the valve guide into the cylinder head. The bore in the new valve guide is the following dimension. ...
Note: The inlet valve stems and the exhaust valve stems should be coated with 8T-2998 Lubricant. This should be prior to the installation in the cylinder head.
(13) Diameter of valve seat inserts ...
Bore in head for valve seat inserts ...
(14) Angle of face of valve seat inserts ... 30.25 ± 0.25 degrees
Contact is required between both the valve and the insert for the full 360 degrees. This should be a full face contact. The minimum width of the seat is the following dimension. ...
(15) Maximum recess from the closed valve face to the surface of the cylinder head ...
Maximum projection of the closed valve above the surface of the cylinder head ...
(16) Outside diameter of the head of the inlet valve ...
Outside diameter of head of the exhaust valve ...
(17) The minimum valve lip thickness that can be used again is the following dimension. ...