TOHATSU BFT115A Service Manual page 439

ROCKER SHAFT O.D.
Measure and record the rocker shaft O.D. at each
rocker arm sliding area.
STANDARD:
IN/EX: 16.983 – 16.994 mm (0.6686 – 0.6691 in)
Replace the rocker shaft if its O.D. is smaller than the
service limit (page 14-38).
ROCKER ARM I.D.
Measure and record each rocker arm I.D.
STANDARD:
IN: 17.019 – 17.035 mm (0.6700 – 0.6707 in)
EX: 17.012 – 17.039 mm (0.6698 – 0.6708 in)
Replace the rocker arms if their I.D. is larger than the
service limit (page 14-38).
ROCKER SHAFT-TO-ROCKER ARM
CLEARANCE
Subtract each rocker shaft O.D. from the corresponding
rocker arm I.D.
STANDARD:
IN: 0.025 – 0.052 mm (0.0010 – 0.0020 in)
EX: 0.018 – 0.056 mm (0.0007 – 0.0022 in)
SERVICE LIMIT:
IN: 0.080 mm (0.003 in)
EX: 0.080 mm (0.003 in)
If the rocker shaft-to-rocker arm clearance exceeds the
service limit, replace the rocker arm and recheck.
If the rocker shaft-to-rocker arm clearance still exceeds
the service limit, replace the rocker shaft (page 14-38).
CYLINDER HEAD
14-47