Section 01 ENGINES (1503 4-TEC)
Subsection 04 (LUBRICATION SYSTEM)
COMPRESSION SPRING FREE LENGTH
NEW NOMINAL 60 mm (2.362 in)
SERVICE LIMIT
50.3 mm (1.980 in)
Replace parts if important wear or damage are
present.
Clean bore and threads in the PTO housing from
metal shavings and other contaminations.
Installation
For installation, reverse the removal procedure.
Pay attention to the following details.
Be careful that the O-ring on plug screw is in place.
Torque plug screw to 12 N•m(106lbf•in) max-
imum. Apply Loctite 243 (P/N 293 800 060) on
threads.
OIL PRESSURE PUMP
The oil pressure pump is located in the PTO hous-
ing and is driven by the balance shaft.
Removal
Remove:
– engine oil (refer to OIL CHANGE in the appro-
priate VEHICLE SHOP MANUAL)
– PTO housing (refer to PTO HOUSING AND
MAGNETO section)
– coolant pump housing no. 19 and impeller
no. 20 (refer to COOLING SYSTEM section)
– screws no. 21
– oil pump cover no. 22
1
R1503motr125A
2
1. Screws
2. Oil pump cover
– outer oil pump rotor no. 23
1
R1503motr126A
1. Outer oil pump rotor
– extract the coolant/oil pump shaft no. 24 from
outside PTO housing with a pusher
– remove rotary seal no. 25 with a screwdriver
SMR2005-035 51
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