A2 - GENERAL ENGINE INFORMATION SIDE VIEW Camshaft Adjuster Oil Pump Drive Chain

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SIDE VIEW
Camshaft Adjuster Oil Pump Drive Chain
Oil Filler Cap Oil Strainer
Engine Hanger Bracket Oil Pump
Cooling Fan and Viscous Clutch Ring Gear and Flywheel of Drive Plate
Oil Filter Piston
Timing Chain
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GENERAL ENGINE INFORMATION 1A2 - 5
PERFORMANCE CURVE
E ENGINE
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1A2 - GENERAL ENGINE INFORMATION
E ENGINE
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GENERAL ENGINE INFORMATION 1A2 - 7
DIAGNOSIS
OIL LEAK DIAGNOSIS Black Light and Dye Method
Most fluid oil leaks are easily located and repaired by A dye and light kit is available for finding leaks, Refer to
visually finding the leak and replacing or repairing the the manufacturer’s directions when using the kit.
necessary parts. On some occasions a fluid leak may be. Pour the specified amount of dye into the engine oil fill
difficult to locate or repair. The following procedures may tube.
help you in locating and repairing most leaks. Operate the vehicle normal operating conditions as
Finding the Leak directed in the kit.
1. Identify the fluid. Determine whether it is engine oil,. Direct the light toward the suspected area. The dyed
automatic transmission fluid, power steering fluid, fluid will appear as a yellow path leading to the
etc. source.
2. Identify where the fluid is leaking from. Repairing the Leak
1 After running the vehicle at normal operating Once the origin of the leak has been pinpointed and
temperature, park the vehicle over a large sheet traced back to its source, the cause of the leak must be
of paper. determined n order for it to be repaired properly. If a gas-
2 Wait a few minutes. ket is replaced, but the sealing flange is bent, the new
3 You should be able to find the approximate loca- gasket will not repair the leak. The bent flange must be
tion of the leak by the drippings on the paper. repaired also. Before attempting to repair a leak, check
for the following conditions and correct them as they
3. Visually check around the suspected component. may cause a leak.
Check around all the gasket mating surfaces for
leaks. A mirror is useful for finding leaks in areas that Gaskets
are hard to reach. D The fluid level/pressure is too high.
4. If the leak still cannot be found, it may be necessary D The crankcase ventilation system is malfunctioning.
to clean the suspected area with a degreaser, steam D The fasteners are tightened improperly or the threads
or spray solvent. are dirty or damaged.
1 Clean the area well. D The flanges or the sealing surface is warped.
2 Dry the area. D There are scratches, burrs or other damage to the
3 Operate the vehicle for several miles at normal sealing surface.
operating temperature and varying speeds. D The gasket is damaged or worn.
4 After operating the vehicle, visually check the D There is cracking or porosity of the component.
suspected component.
D An improper seal was used (where applicable).
5 If you still cannot locate the leak, try using the
powder or black light and dye method. Seals
Powder Method D The fluid level/pressure is too high.
1. Clean the suspected area. D The crankcase ventilation system is malfunctioning.
2. Apply an aerosol- type powder (such as foot powder)
- D The seal bore is damaged (scratched, burred or
to the suspected area. nicked).
3. Operate the vehicle under normal operating condi- D The seal is damaged or worn.
toins. D Improper installation is evident.
4. Visually inspect the suspected component. You D There are cracks in the components.
should be able to trace the leak path over the white D The shaft surface is scratched, nicked or damaged.
powder surface to the source. D A loose or worn bearing is causing excess seal wear.
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