Valve Spring Installed Length

To check valve spring installed length, install tool (9138) with shims for applicable valve, spring retainer and keepers. Read distance from tool and correct, if required, by adding or removing shims. Correct intake spring length is 1.544+.020" (39.6+.5 mm) and exhaust length should be 1.505+.020" (38.6+.5 mm).