TRUCK SERV ICE MANUAL
ENGINE
Service Tools (Or Equivalent) Required
Service
Tool
Tool Number
Name
ST-994
Bushing Mandrel
ST-1 157
Spacer Mandrel
ST-1158
Bushing Mandrel
Desirable (Or Equivalent) Service Tools
ST-1134
Dowel Pin Extractor
ST-1160
Hose Assembly Tool Kit
ST-1218
Mandrel ("0" ring)
ST-1223
Mandrel ("0" ring)
LUBRICATING OIL PAN
The -extreme angular operation at which a vehicle is to
be operated must be known and a lubrication system
provided that is suitable for the maximum angle of
operation.
Engines for automotive vehicles should be
protected to at least 10 deg.
vehicle angularity of
operation and engines for construction equipment must
be equipped with the necessary components to permit at
least 30 deg.
vehicle angularity of operation.
See Table
7-1 for oil pan capacities and sump location.
INSPECTION
1.
Visually check oil pan for cracks or, if a leak is
suspected, check using dye penetrant.
a.
Spray suspected area with dye penetrant.
Allow
penetrant to dry for fifteen minutes.
Do not "force dry," b.
Spray area with dye developer and check for crack
indications.
2.
Check heli-coil inserts on aluminum oil pans.
If
damaged, replace.
Check all threaded holes for
damaged threads.
REPAIR
1.
Repair damaged heli-coil inserts.
a.
Determine hole size; then use proper heli-coil
extraction tool to remove damaged heli-coils.
Condition
hole and insert new heli-coil.
Refer to Cummins Service
Tool
b.
Use starting and finishing tap for heli-coil inserts for
new or oversize holes in aluminum.
When tapping
aluminum, use fuel oil for lubricant to prevent tearing.
c.
After inserting heli-coil, bend starting end toward
center
then back toward side of hole to break off installation tip.
2.
Repair small cracks in pan by welding.
Do not weld
finished surfaces.
3.
Repair oil plug drain hole in aluminum oil pans when
drain hole threads are damaged.
Two oversize plugs
are.
available to permit re-thread of oil pan drain holes at
least twice.
a.
Part No.
62117 Oil Pan Drain Plug; Size 1-1/4 inch x
12 thread.
(1) Enlarge damaged hole by drilling to 1-11/64 inch
[29.77 mm].
(2) Tap hole with a 1-1/4 inch x 12 tap.
When tapping
aluminum, use fuel oil for lubricant to prevent tearing of
metal.
(3) Install new drain plug with a new copper gasket.
Tighten to 60 to 70 ft-lbs [8.3 to 9.7 kg m] torque.
b.
Part No.
120349 Oil Pan Drain Plug; Size 1-3/8 inch x
12 thread.
(1) Enlarge damaged hole by drilling 1-19/64 inch [32.94
mm].
Tap hole with a 1-3/8 inch x 12 tap.
(2) Install new drain plug with a new copper gasket.
Tighten to 60 to 70 ft-lbs [8.3 to 9.7 kg m] torque.
4.
Install pipe plugs in oil pan securely.
Do not
overtighten.
LUBRICATING OIL DIPSTICK
The dipstick has been calibrated for a certain oil level
when used with a specific oil gauge tube and with engine
in a certain position.
Too high an oil level will cause
foaming, excessive oil temperature and power loss.
Too
low an oil level will result in oil pressure fluctuation and
possible loss of oil pressure.
In the event a dipstick
should be lost or damaged a new dipstick is required.
If
part number is unknown and it is necessary to mark a
blank dipstick for use, see part numbers listed below for
lengths available.
Blank (Unmarked) Dipstick Length
Part Number
Inch
[mm]
131461
11-7/16
[290.51 ]
131462
23-1/4
[590.55]
131463
47-11/16
[1211.261
161482
20-1/16
[508.061
161483
40-1/16
[1016.06]
16t484
60-1/16
[1524.06]
197737
80-1/16
[2032.06]
Engine must be mounted in chassis and in operating
position.
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