F70_F75_F77-LU-Lubrication_System-Part1
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Service manual
DAIHATSU IVICITDF-I CO., LTD. ND.S7D3-FE
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LUBRICATION SYSTEM
TROUBLE SHOOTING LU- 2 LUBRICATION SYSTEM OUTLINE LU- 3 OIL PRESSURE CHECK LU- 5 ENGINE OIL CHANGE 8: OIL FILTER
REPLACEMENT LU- 7 OIL PUMP LU- 9 OIL FILTER 8. OIL FILTER BRACKET LU-13 SST (Special Service Tools) LU-17 TIGHTENING TORQUE LU-17 SERVICE SPECIFICATION LU-18
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LUBRICATION SYSTEM
TROUBLE SHOOTING
Probrem U Possibke causes
Remedies
Page
I Oil leallaéez I I Cylinder block oil
cooker. oil pump body damaged or cracked
seal faulty
Gasket faulty
Repair, if necessary
Replace oil seal.
Replace gasket,
Low oil pressure Oil Ieakagz 7
Relief valve faulty
Oil pump faulty
Crankshah bearing faulty
Poor quality engine oil
Connecting rod bearing fauity
01| filter clogged
Low oil level
' '_
Repanr. as necessary
Fleplace relief valve.
Fiepair oil pump.
Change engine oil.
Repiace bearing.
Replace bearing.
Replace oil fitter.
Check oil level.
High oil pressure Fieiief valve faulty
Replace relief lfalve.
LU- 10
Poor engine ont O11 1eakage
Consumption Relief valve faulty
Repair. as necessary.
\ Replace rehel valve.
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I LUBFIICATION SYSTEM
LUBRICATION SYSTEM OUTLINE
The lubrication system employs :-1 fully-forced feed, filtering method. The oil stored in the oil pan is sucked by an ol] pump which is directly driven by the crenkshalt. Then, the thus-sucked oil flows through an oil pump strainer and is filtered at ah oil filter After having passed through the passages ol me cylinder block, it will oe divided into two streams so as to lubricate various sections. One stream of the lubrication oil performs lubrication of various sections of the crankshaft and Connecltng rod- and piston-related parts. The other stream of the lubrication, oil rises to the cylinder head section.
Then. it performs lubrication of valve rocker shaft-related parts.
Lubrication System Schejnatic Diagram i
Mi
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LUBFIICATION SYSTEM
I Camshaft Journals Camshaft J ff
A
_ Piston Pin
Piston-Cylinders Connecting Rods
Valve Lifter
TON NOZZIE k | [Valve Rocker Arm
i éranksnan his Passage
i Crankshaft Oii Passag
Crankshah Mam Journal
Vaive Rockershaft
Main Galrery
Vacuum Pump
Oii Filter
Push Rods I I Valve Stems Pl
Oil Pan
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i LUBRICATION SYSTEM
OIL PRESSURE CHECK
1. Oil quality check
Check the oil for deterioration, ingress of water, discoloring or dilution. If oil quality is poor. change the oil. Use API grade CC, CD multigrade viscosity, fuel-efficient oil. (See page LU-8_)
2. Oil level check
The oil level should be between the L and F levels on the dipstick_ lf the level is low. check to see if any eil leakage is present. Add oil to the F level. NOTE: - The amount of oil between the [L] level and the [F]
equals to one liter.
3. Oil pressure check
(1) Disconnect the connector of oil pressure switch.
(2) Remove the oi! pressure switch. NOTE:
D - Use a hexagonal long box wrench for the removal.
(3) _Install the oil pressure gauge.
W
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LUBHICATION SYSTEM
(4) Starting engine
Start the engine and warm it to the normal operating temperature. At Idle Speed: More than 19.6 kPa (0.2 kgf/cm2) At 2200 rpm: 294.2 - 392.3 kPa (3.0 - 4.0 kgtlcmg)
If the measured value falls to conform to the specified value. check and repair the oil pump. (See page LU-9.) (5) Stop the engine.
(6) Remove the oil pressure gauge. (7) Clean the threaded portion of the oil pressure switch. Wind seal tape around the threaded portion. Install the oil pressure switch in the oil pump. Tightening Torque: 39.2 i 4.9 N-m (4.0 :tc 0.5 kgf-m)
NOTE: f Use a hexagonal long box wrench for the installation.
- The new oil pressure switch is coated with sealing
materials.
(8) Connect the connector of the oil pressure switch. (9) Start the engine and check it for oil leakage.
Repair the leaky point if oii leakage exists.
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LUBRICATION SYSTEM
ENGINE OIL CHANGE & OIL FILTER REPLACEMENT
1 Drain the engine oil as follows:
(1) Place a suitable container under the oii drain plug. (2) Remove the engine under cover. (3) Drain the oil by removing the oil drain plug.
`vvARN|Nca; " We " '
0 When the oil is still hot; care must be exercised to
avoid getting scalded. M
2. Oil filter replacement
(1) Remove the oil filter element. using the filter wrench. NOTE:
- Place a suitable container under the oii filter because the
engine oil flows out
(2) Inspect and clean the oil filter installation surface,
(3) Thinly apply engine oil tothe "O" ring of a new oil filter.
(4) Screw in the oil fiiter by hand. until the "O" ring of the
oil filter contacts the oil fiiter installing surface.
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3. Filling engine oil -A "M '
. Remove any remaining gasket material from the oil pan, /1,
using a gasket scraper. r " Tightening Torque: 34.3 1: 4.9 N-m (3.5 i 0.5 kgf-m) Q
fi' I
(2) Fill the engine with engine oil,
WREBI-LUOIEZ (3) Start the engine and check it for leakage.
Repair the leaky point if oil leakage exists. (4) Stop 'the engine. After a lapse of two or three minutes.
check the oil level. Ii oil level is less than the full level, replenish the oil to the lull level. (5) Install the engine under cover.
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LUBRICATION SYSTEM
OIL PUMP
con/IPONENTS _
G) Driven
Cho
gear
gil
O
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