Engine Lubrication System - BOMBARDIER Johnson 90 Service Manual

POWER UNIT
OPERATION
Engine Lubrication System
A camshaft driven trochoid type pump provides engine oil to all power unit components requiring lubrica­
tion. Oil from the oil pan is drawn through the oil strainer and passed through a spin-on type oil filter
before entering the main oil gallery. A pressure regulator (relief valve) is positioned between the oil pump
and oil filter to maintain oil pressure ata constant level. From the main gallery, oil flow is directed through
either drilled interna! passages or by splash method to those surfaces requiring lubrication.
ENGINE OIL LUBRICATION CHART
No.
1
CYLINOER
WALL
No.1 PISTON
No. 2 CYUNOER
WALL
No.2 PISTON
No. 3 CYUNOER
WALL
No.3PISTON
No.1 No.
1
CAMSHAFT
No. 1 CAMSHAFT ~ No. 1
CAMFACE JOURNAL (IN) JOURNAL (EX) CAM FACE
No.2
No.
2
CAMSHAFT No. 2 CAMSHAFT ~ No. 2
CAM FACE
JOURNAL (IN)
.
JOURNAL (EX) CAM FACE
No. 3
No. 3 CAMSHAFT
A
No. 3 CAMSHAFT ~ No. 3
CAMFACE JOURNAL (IN)
JOURNAL (EX) CAM FACE
M
No.4
No. 4 CAMSHAFT
s
No.
4
CAMSHAFT ~ No.
4
1
CAM FACE
JOURNAL (IN) H H JOURNAL (EX) CAM FACE
No. 4 CYUNOER
WALL
No.4 PISTON
No. 5 CRANKSHAFT
MAIN JOURNAL
PRESSURE
REGULATOR
1
No. 5 CRANK PIN
1
1
'
'
í
'
'
OILPAN
6-68