Illustration 1 | g01094016 |
Note: Apply 8T-2998 Lubricant to the valve stems prior to installation in the cylinder head.
(1) Valve springs
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211-3122 Spring (Inner)
- Assembled length ... 60.14 mm (2.368 inch)
- Load at assembled length ... 150 ± 12 N (34 ± 3 lb)
- Operating length (minimum) ... 44.02 mm (1.733 inch)
- Load at minimum operating length ... 400 ± 18 N (90 ± 4 lb)
- Free length after test ... 71.70 mm (2.823 inch)
- Outside diameter ... 25.17 mm (0.991 inch)
- Load at assembled length ... 150 ± 12 N (34 ± 3 lb)
-
211-3123 Spring (Outer)
- Assembled length ... 67.12 mm (2.643 inch)
- Load at assembled length ... 320 ± 25 N (72 ± 6 lb)
- Operating length (minimum) ... 51.00 mm (2.008 inch)
- Load at minimum operating length ... 900 ± 45 N (202 ± 10 lb)
- Free length after test ... 76.70 mm (3.020 inch)
- Outside diameter ... 36.30 mm (1.429 inch)
- Load at assembled length ... 320 ± 25 N (72 ± 6 lb)
(2) Valve guide
- Bore of installed valve guide (new parts) ... 9.487 ± 0.025 mm (0.3735 ± 0.0010 inch)
- Maximum recommended diameter of the valve guide bore ... 9.538 mm (0.3755 inch)
Note: Do not use a combination of a valve and a valve guide that has a difference of 0.13 mm (0.005 inch) or more.
(3) Height to top of valve guide ... 35.00 ± 0.50 mm (1.378 ± 0.020 inch)
(4) Valve recess
- Inlet (new parts) ... 2.20 to 2.80 mm (0.087 to 0.110 inch)
- Exhaust (new parts) ... 1.20 to 1.80 mm (0.047 to 0.071 inch)
- Inlet (reconditioned parts) ... 2.20 to 3.29 mm (0.087 to 0.129 inch)
- Exhaust (reconditioned parts) ... 1.20 to 2.29 mm (0.0472 to 0.090 inch)
- Exhaust (new parts) ... 1.20 to 1.80 mm (0.047 to 0.071 inch)
Illustration 2 | g00640401 |
(5) Valve face angle
- Inlet ... 29 1/4 ± 1/4 degrees
- Exhaust ... 44 1/4 ± 1/4 degrees
(6) Valve stem diameter
- New valve stem diameter ... 9.441 ± 0.010 mm (0.3717 ± 0.0004 inch)
- Minimum recommended valve stem diameter ... 9.408 mm (0.3704 inch)
(7) Diameter of valve head
- Inlet ... 47.00 ± 0.13 mm (1.850 ± 0.005 inch)
- Exhaust ... 41.81 ± 0.13 mm (1.646 ± 0.005 inch)
(8) Minimum recommended valve lip thickness
- Inlet ... 2.75 mm (0.108 inch)
- Exhaust ... 2.05 mm (0.081 inch)
(9) Overall length of valve
- Inlet ... 202.00 ± 0.45 mm (7.953 ± 0.018 inch)
- Exhaust ... 202.06 ± 0.45 mm (7.955 ± 0.018 inch)
Illustration 3 | g00564825 |
175-3617 Valve Seat Insert (Inlet) and 152-7582 Valve Seat Insert (Exhaust) |
(10) Minimum recommended width of the valve seat
- Inlet ... 2.00 mm (0.079 inch)
- Exhaust ... 1.25 mm (0.049 inch)
(11) Depth of bore in the cylinder head for the valve seat insert
- Inlet ... 14.00 ± 0.10 mm (0.551 ± 0.004 inch)
- Exhaust ... 13.90 ± 0.10 mm (0.547 ± 0.004 inch)
(12) Inside diameter of valve seat insert
- Inlet ... 41.00 ± 0.50 mm (1.614 ± 0.020 inch)
- Exhaust ... 36.50 ± 0.50 mm (1.437 ± 0.020 inch)
(13) Angle of valve seat face
- Inlet ... 30 1/4 ± 1/2 degrees
- Exhaust ... 45 1/4 ± 1/2 degrees
(14) Outside diameter of valve seat insert
- Inlet ... 48.025 ± 0.013 mm (1.8907 ± 0.0005 inch)
- Exhaust ... 42.840 ± 0.013 mm (1.6866 ± 0.0005 inch)
-
Diameter of the bore in the cylinder head for the valve seat insert
- Inlet ... 47.950 ± 0.025 mm (1.8878 ± 0.0010 inch)
- Exhaust ... 42.774 ± 0.025 mm (1.6840 ± 0.0010 inch)