Usage:
CONFIDENTIAL TIBU4451-03
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TECHNICAL INFORMATION BULLETIN |
September 1, 2005 |
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ON-HIGHWAY TRUCK ENGINE |
C7 (FML1-UP, FMM1-UP, SAP1-UP, KAL1-UP, YPG1-UP) |
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Component Code 1326, 1348 |
SUBJECT: OIL CARRY OVER/OIL FILL QUANTITIES FOR THE C7 ON-HIGHWAY ENGINE
PROBLEM:
Some C7 On-highway engines may be experiencing oil dripping from the breather tube, oil film coating frame rails, etc, or oil film on towed vehicles.
SOLUTION #1:
On the SAP1-UP prefix engines, the oil dipstick tube is too long and extending into the oil in the pan causing improper oil gauge readings. Remove the dipstick tube and measure from the datum (see picture below) to the end of the tube assembly. The measurement should be 30 mm. If the tube measurement from the datum to the end of the tube assembly is 110 mm, cut off the tube to a measurement of 30 mm from the datum to the end of the tube.
SOLUTION #2:
On engines FML1-UP, FMM1-UP, KAL1-UP, and YPG1-UP the oil fill quantities have been reviewed and have been adjusted to the following refill capacities listed in the table below.
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C7 On-highway Truck Engine |
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Compartment or System |
Refill w/filter Change (L) (Qts) |
Refill w/o Filter Change (L) (Qts) |
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Shallow Oil Sump Capacity |
18 (L) 19 (qts) |
16 (L) 17 (qts) |
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Deep Oil Sump Capacity |
25 (L) 27 (qts) |
23 (L) 25 (qts) |
Table 1
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Illustration 2
- Shallow oil pan
- Deep oil pan
When troubleshooting oil carry over complaints follow the procedure below for draining the oil, refilling the oil, and oil level gauge calibration.
The engine oil level will vary depending on the angle and the slant of the engine installation. The angle is the front to back tilt. The slant is the sideways tilt.
The oil level gauge markings must be verified in order to ensure that the markings are correct. Verify the oil level gauge markings at the first oil change.
Verify the "ADD" mark and verify the "FULL" mark that is on the oil level gauge. Use the following procedure.
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NOTICE |
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The vehicle must be parked on a level surface in order to perform this maintenance procedure. |
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1. Operate the engine until normal operating temperature is achieved. Stop the engine. Remove the crankcase oil drain plugs. The oil drain plug from the deep portion of the oil pan should be removed. Drain the oil from the crankcase for 20 minutes.
2. Remove the used oil filter(s). Install the new oil filter(s). Install the oil drain plugs and tighten to 70 ? 15 N?m (50 ? 11 lb ft).
Note: Only perform step 2 if engine is at normal maintenance interval per Operation and Maintenance Manual
Note: Your engine may be equipped with auxiliary oil filters. The auxiliary oil filters require a different volume of oil. Refer to the OEM specifications for the auxiliary oil filter.
3. Pour the following oil quantities into the crankcase:
Shallow sump pans
13(L) or 14(qts) without filter change
15(L) or 16(qts) with filter change
Deep sump pans
20(L) or 22(qts) without filter change
22(L) or 24(qts) with filter change
The 3 (L) or 3 (qts) is the difference between the "Add" and "Full" mark on the oil level gauge.
4. Start the engine and run the engine for 3 to 5 minutes. Shut off the engine. Allow enough time for the oil to drain into the crankcase. Approximately 20 minutes should be allowed. Check the oil level. Wait for several minutes and check the oil level again. Proceed after the oil level stops changing.
5. Check the oil level on the oil level gauge and calibrate oil gauge "Add Oil" mark. If the oil level is not at the existing "ADD" mark, grind off the "ADD" mark and engrave the new "ADD" level. Use an engraving pen in order to engrave the new "ADD" mark.
6. Add the additional 3 (L) or 3 (qts) of oil to the engine. This additional oil should now bring the oil level to the full mark.
7. Allow enough time for the oil to drain into the crankcase.
8. Check the oil level on the oil level gauge and calibrate oil level gauge "Full" mark. If the oil level is not at the existing "FULL" mark, grind off the "FULL" mark. Use an engraving pen in order to engrave the new "FULL" mark.
9. Start the engine and run the engine enough to ensure that the lubrication system is filled. Inspect the engine for oil leaks.
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NOTICE |
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Do not crank the engine for more than 30 seconds. Allow the starting motor to cool for two minutes before cranking again. |
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10. Stop the engine and allow enough time for the oil to drain into the crankcase.
11. Verify the oil level is at the full mark.
12. Steam clean underside of engine to remove existing oil residue.
13. Start the engine and run the engine to verify the fix.
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ALL RIGHTS RESERVED