Valve spring

Free length mm (inch) Outer standard / minimum Inner standard / minimum	39,1 / 38,7 (1,539 / 1,524) 38,0 / 37,7 (1,496 / 1,484)
Out of square mm (inch) Outer maximum Inner maximum	1,4 (0.055) 1,3 (0,051)
Setting load heigth Outer kg / mm (ib / inch) Inner kg / mm (ib / inch)	8,0 / 31,5 (17,6 / 1,240) 12,5 / 33 (27,5 / 1,299)