3. Using a vernier, check internal diameter of each
rocker arm, take 2 measurements at 180
Rocker arm internal diameter =27.0 to 27.013
CAUTION: Any ovality must be within
Rocker shaft - Assembling
1. Fit new spring ring to groove in rocker shaft.
with engine oil.
3. Fit rocker arm to shaft ensuring that it is in its
original fitted order.
4. Fit new spring ring to retain rocker arm.
arms ensuring they are in their original fitted
6. Fit new rocker adjusting screws and locknuts to
rocker arms; do not tighten screws fully into
CAUTION: Ensure screws are correct for
to 19P have a centre punch mark adjacent to the
Cylinder head - Assembling
1. Lubricate new valve stem oil seals with engine
2. Using tool LRT-12-071, fit valve stem oil seals.
spring caps and springs with engine oil.