Section 08 LUBRICATION SYSTEM
Subsection 02 (OIL INJECTION SYSTEM)
08-02-2 SMR2000-058_08_02A.FM
GENERAL
Whenever repairing the oil injection system, al-
ways verify for water infiltration in reservoir.
Perform also a pressure test of the oil injection
system.
Clamp and Hose
Verify oil filler neck hose no. 2 for damage. Always
ensure that clamps no. 1 are well positioned and
tightened. Torque clamps to 3.5 N•m (31 lbf•in).
Check Valve
Black side of the one-way check valve no. 3 is the
valve outlet. It allows air to get in reservoir.
Oil Filter
Oil filter no. 4 should be replaced annually.
OIL SYSTEM PRESSURIZATION
Pressure Test
Proceed as follows:
– Fill up oil reservoir.
– Install a hose pincher to oil injection pump sup-
ply hose.
DI Models
Install a hose pincher to return line of air compres-
sor.
Disconnect return line on PTO side throttle body.
Carburetor-Equipped Models
– Connect pump gauge tester (P/N 529 021 800)
to check valve of oil injection reservoir vent.
DI Models
Connect pump gauge tester (P/N 529 021 800) to
disconnected tube at throttle body.
All Models
NOTE: Use the same pump included in the EN-
GINE LEAK TESTER KIT (P/N 295 500 352).
TYPICAL
1. Connect pump to check valve
– Pressurize oil system to 21 kPa (3 PSI).
– If pressure is not maintained, locate leak and
repair/replace component leaking. To ease leak
search spray a solution of soapy water on compo-
nents, bubbles will indicate leak location.
DI Models
Verify check valve inside filler neck if pressure
does not hold. Also ensure air can enter through
check valve in the opposite direction.
All Models
NOTE: The system must maintain a pressure of
21 kPa (3 PSI) for at least 10 minutes. Never pres-
surize over 21 kPa (3 PSI).
CAUTION: If any leak is found, do not start the
engine and wipe off any oil leakage.
– Disconnect pump gauge tester and remove
hose pinchers. On DI models, reconnect line at
throttle body.
WARNING
Whenever oil system components are dis-
connected or replaced, a pressure test must
be done before starting engine. Ensure to ver-
ify oil line ends for damage. Always cut dam-
aged end before reinstallation.
1
F01G0IA
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