YES go to 5 NO go to 4
4 - Check the thermal group seals (piston rings, valve guides and oil guards), see "Thermal group and
Timing system" chapter.
5 - Restore the valve or the drainage hole efficiency.
Oil pump
Removal
KEY:
A. Pressure pump
B. Scavenge oil pump
C. By-pass
- The lubrication system includes the pressure and scavenge oil pumps.
- To act on the pressure pump, remove the casing of the oil anti-backflow plate under the flywheel.
- To act on the scavenge oil pump, open the crankcase, and operate inside the flywheel-side crankcase
half.
GP 800 i.e. Engine
ENG - 87