Engine distributors DSG-423 User Manual

DSG-423 GENERAL INFORMATION
01-15
Excessive Engine Oil Consumption
The amount of oil an engine uses will vary with the way
the equipment is driven in addition to normal engine-to-
engine variation. This is especially true during the first
340 hours or 16,100 km (10,000 miles) when a new
engine is being broken in or until certain internal engine
components become conditioned. Engines used in
heavy-duty operation may use more oil. The following
are examples of heavy-duty operation:
• severe loading applications
• sustained high speed operation
Engines need oil to lubricate the following internal
components:
• cylinder block, cylinder walls
• pistons, piston pins and rings
• intake and exhaust valve stems
• intake and exhaust valve guides
• all internal engine components
When the pistons move downward, a thin film of oil is
left on the cylinder walls. As the engine is operated,
some oil is also drawn into the combustion chambers
past the intake and exhaust valve stem seals and
burned.
The following is a partial list of conditions that can affect
oil consumption rates:
• engine size
• operator driving habits
• ambient temperature
• quality and viscosity of the oil
Operating under varying conditions can frequently be
misleading. An engine that has been run for short hours
or in below-freezing ambient temperatures may have
consumed a “normal” amount of oil.
However, when checking engine oil level, it may
measure up to the full mark on the oil level dipstick due
to dilution (condensation and fuel) in the engine
crankcase. The engine might then be run at high
speeds where the condensation and fuel boil off. The
next time the engine oil is checked, it may appear that a
liter (quart) of oil was used in about 3 to 3-1/2 hours.
This perceived 3 to 3-1/2 hours per liter (quart) oil
consumption rate causes customer concern even
though the actual overall oil consumption rate is about
50 hours per liter (quart).
Make sure the selected engine oil meets Ford
specification WSS-M2C153-F and the recommended
API performance category “SJ” or higher and SAE
viscosity grade as shown in the equipment Owner’s or
Operators Engine handbook. It is also important that the
engine oil is changed at the intervals specified. Refer to
the Engine Operator’s handbook.
Oil Consumption Test
The following diagnostic procedure is used to determine
the source of excessive internal oil consumption.
NOTE: Oil use is normally greater during the first 300
hours of service. As hours increase, oil use generally
decreases. Engines in normal service should get at
least 31.7 hours per quart (900 miles per quart) after
300 hours of service. High speeds, heavy loads, high
ambient temperature and other factors may result in
greater oil use.
1. Determine customer’s engine load habits, such as
sustained high speed operation, extended idle,
heavy work loads and other considerations.
2. Verify that the engine has no external oil leak as
described under Engine Oil Leaks in the Diagnosis
and Testing portion of this section.
3. Verify that the engine has the correct oil level
dipstick.
4. Verify that the engine is not being run in an overfilled
condition. Check the oil level at least five minutes
after a hot shutdown with the engine/vehicle parked
on a level surface. In no case should the level be
above the top of the cross-hatched area and the
letter F in FULL. If significantly overfilled, perform
steps 5 through 9. If not proceed to step 10.
5. Drain the engine oil, remove and replace the oil filter
and refill with one quart less than the recommended
amount.
6. Run the engine for three minutes (10 minutes if
cold), and allow the oil to drain back for at least five
minutes with the engine/vehicle on a level surface.
7. Remove oil level dipstick and wipe clean.
CAUTION: Do not wipe with anything contaminated
with silicone compounds.
8. Reinstall the oil level dipstick, being sure to seat it
firmly in the oil level indicator tube. Remove the oil
level dipstick and draw a mark on the back
(unmarked) surface at the indicated oil level. This
level should be about the same as the ADD mark on
the face of the oil level dipstick.
9. Add one quart of oil. Restart the engine and allow to
idle for at least two minutes. Shut off the engine and
allow the oil to drain back for at least five minutes.
Mark the oil level dipstick, using the procedure
above. This level may range from slightly below the
top of the cross-hatched area to slightly below the
letter F in FULL.
10.Record the vehicle mileage or hours.

Engine distributors DSG-423 Specifications

General

Brand	Engine distributors
Model	DSG-423
Category	Engine
Language	English