Cylinder Block

(1) Height to top of valve guides ......................26.00 + 2.00 mm (1.024 + .079 in.)

(2) 7N1904 Spring (outer) for valve:

Length under test force......56.36 mm (2.219 in.) Test force...................254 + 25 N (56.9 + 5.6 lb.) Use again minimum load at length under test force............................................229 N (51.5 lb.) Length of spring at valve open position ............................................40.36 mm (1.589 in.) Use again minimum load at valve open position ......................................................800 N (180 lb.) Free length after test..........62.50 mm (2.461 in.) Outside diameter................43.96 mm (1.731 in.) Spring must not be bent more than ................................................2.18 mm (.086 in.)

(3) 7N1903 Spring (inner) for valve: Length under test force......45.49 mm (1.791 in.) Test force .....................125 ± 12 N (28 + 2.7 lb.) Use again minimum load at length under test force...........................113 N (25.4 lb.) Length of spring at valve open position......................29.49 mm (1.161 in.) Use again minimum load at valve open position...............................397 N (89.3 lb.) Free length after test..........51.54 mm (2.029 in.) Outside diameter................29.24 mm (1.151 in.) Spring must not be bent more than...............................1.83 mm (.072 in.) (4) Diameter of valve stems (new).........9.441 + 0.008 mm (.3717 + .0003 in.)

Bore in valve guides with guides installed in the head (new).........9.487 + 0.025 mm (.3735 + .0010 in.) Use again maximum bore in valve guides with guides installed in the head ............................................9.540 mm (.3755 in.) (5) Diameter of valve heads............56.00 + 0.15 mm (2.205 + .006 in.) (6) Angle of valve faces..........................291/4 + 1/4° (7) Depth of bore in head for valve seat inserts........14.00 + 0.15 .lm (.551 +.006 in.) (8) Diameter of valve seat inserts....60.119 + 0.015 mm (2.3669 + .0006 in.) Bore in head for valve seat inserts....60.000 + 0.025 mm (2.3622 + .0010 in.) (9) Angle of face of valve seat inserts.................................................3014 + 1/2° (10) Outside diameter of the face of valve seat inserts............55.14 + 1.48 mm (2.171 + .058 in.)

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