Inspection; Installation - Triumph Rocket III Service Manual

Cylinder Head
Inspection
1. Thoroughly clean the surface of the cylinder
head and check for damage and/or pitting of the
combustion chambers.
2. Using a straight edge and feeler gauges, check
the cylinder head gasket face for warp, which
could lead to gasket failure. Replace the cylinder
head if warped beyond the flatness limit.
Checking head flatness
Cylinder head flatness 0.030 mm
tolerance
3. Check the cam chain rubbing blades. Renew if
worn or damaged.
Ensure all traces of fluid (coolant, oil etc.) are
removed from the threaded holes in the crankcase.
Should any fluid remain in any of the threaded
holes, severe crankcase damage could result from
hydraulic locking of head bolts on assembly of the
engine.
Installation
1. Thoroughly clean the upper faces of the
crankcase and liners. Also clean the liner to
crankcase mating faces.
2. Fit the cylinder liners (see page 5.19).
3. Move the cam chain rubbing blades to a position
that allows the head to fit over them.
4. Ensure that both head dowels remain in position
in the crankcase.
1
.",,"
1. Dowels
5. Position a new cylinder head gasket to the
crankcase.
6. Lower the cylinder head over the cam chain
rubbing blades and locate it onto the dowels.
Cylinder head bolts must never be reused and must
always be replaced if removed or loosened.
Use the correct procedure to tighten the cylinder
head bolts carefully following the three-stage
procedure below. This will ensure the long-term
reliability of the cylinder head gasket.
Failure to follow the correct tightening procedure or
reuse of old head bolts may lead to engine damage
and premature failure of the cylinder head gasket.
3.16
Service Manual - Rocket
III