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Home >> Toyota >> 1966 >> Crown Not Available Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> TOYOTA Engines - (3R-B & 3R-C Engines) 4 Cylinder >> 1965-70 TOYOTA (3R-B & 3R-C Engines) 4 Cylinder >> Valve Tappet Service

Valve Tappet Service

  1. With valve tappet removed, check clearance between tappet and bore in crankcase, if clearance exceeds 0.004", replace tappet with next oversize and ream crankcase bore to appropriate clearance for oversize tappet. Correct tappet clearance is 0.0006 - 0.002". Tappets are available in 0.003" and 0.005" oversizes.