Mitsubishi S12A2 - Bypass Valve - Inspect; Oil Cooler - Inspect; Oil Filter Cartridge - Install; Oil Filter, Relief Valve and Oil Cooler - Assemble

9-20
Chapter 9 LUBRICATION SYSTEM
2.10 Bypass Valve - Inspect
Inspect the bypass valve opening pressure. If limit is
exceeded, replace it with a new one.
2.11 Oil Cooler - Inspect
Check the oil passages of element for flaws or cracks by
applying compressed air of 1.5 MPa {15 kgf/cm
2
} [217 psi].
If any leakage or damage is found, replace the element with
a new one.
Oil Cooler - Inspect
2.12 Oil Filter, Relief Valve and Oil Cooler - Assemble
To assemble, follow the disassembly sequence in reverse.
Thoroughly clean oil passages with wash oil, and dry the
cleaned parts with compressed air.
2.13 Oil Filter Cartridge - Install
(1) Remove dust and contamination on oil filter cartridge
mating face.
(2) Apply clean engine oil on oil filter gasket.
(3) After the oil filter gasket contacts with base surface,
tighten the cartridge by 3/4 to 1 turn by hand.
(4) Start the engine, and make sure that there is no fuel
leaks.
Item Standard value
Bypass valve opening pressure
0.44 ± 0.05 MPa
{4.49 ± 0.51 kgf/cm
2
}
[64 ± 7 psi]
Air
Leak, flaw, crack check
(a) When installing oil filter cartridge, tighten it by
hand. (Do not use filter wrench.)
(b) Be careful not to dent or damage the surface of
cartridge.