UNBALANCE
NOTE: Removing
and
re-indexing
the
propeller
shaft 180° relative to the yoke may eliminate some
vibrations.
If propeller shaft is suspected of being unbalanced,
it can be verified with the following procedure:
(1) Raise the vehicle.
(2) Clean all the foreign material from the propel-
ler shaft and the universal joints.
(3) Inspect the propeller shaft for missing balance
weights, broken welds, and bent areas. If the pro-
peller shaft is bent, it must be replaced.
(4) Inspect the universal joints to ensure that they
are not worn, are properly installed, and are cor-
rectly aligned with the shaft.
(5) Check the universal joint clamp screws torque.
(6) Remove the wheels and tires. Install the wheel
lug nuts to retain the brake drums or rotors.
(7) Mark and number the shaft six inches from the
yoke end at four positions 90° apart.
(8) Run and accelerate the vehicle until vibration
occurs. Note the intensity and speed the vibration
occurred. Stop the engine.
(9) Install a screw clamp at position 1 (Fig. 6).
(10) Start the engine and re-check for vibration. If
there is little or no change in vibration, move the
clamp to one of the other three positions. Repeat the
vibration test.
(11) If there is no difference in vibration at the
other positions, the source of the vibration may not
be propeller shaft.
(12) If the vibration decreased, install a second
clamp (Fig. 7) and repeat the test.
(13) If the additional clamp causes an additional
vibration, separate the clamps (1/4 inch above and
below the mark). Repeat the vibration test (Fig. 8).
(14) Increase distance between the clamp screws
and repeat the test until the amount of vibration is
at the lowest level. Bend the slack end of the clamps
so the screws will not loosen.
(15) If the vibration remains unacceptable, apply
the same steps to the front end of the propeller shaft.
(16) Install the wheel and tires. Lower the vehicle.
RUNOUT
(1) Remove dirt, rust, paint, and undercoating
from the propeller shaft surface where the dial indi-
cator will contact the shaft.
(2) The dial indicator must be installed perpendic-
ular to the shaft surface.
(3) Measure runout at the center and ends of the
shaft sufficiently far away from weld areas to ensure
that the effects of the weld process will not enter into
the measurements.
Fig. 6 Clamp Screw At Position 1
1 – CLAMP
2 – SCREWDRIVER
Fig. 7 Two Clamp Screws At The Same Position
Fig. 8 Clamp Screws Separated
1 –
1
⁄
2
INCH
XJ
PROPELLER SHAFTS
3 - 5
DIAGNOSIS AND TESTING (Continued)
Summary of Contents for Cherokee 2000
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Page 96: ...Fig 105 Gear Tooth Contact Patterns 3 60 TUBE 181 AND 186 FBI AXLE XJ ADJUSTMENTS Continued...
Page 100: ...Installer D 144 Installer W 262 3 64 TUBE 181 AND 186 FBI AXLE XJ SPECIAL TOOLS Continued...
Page 134: ...Fig 79 Gear Tooth Contact Patterns 3 98 194 RBI AXLE XJ ADJUSTMENTS Continued...
Page 166: ...Fig 59 Gear Tooth Contact Patterns 3 130 8 1 4 REAR AXLE XJ ADJUSTMENTS Continued...
Page 215: ...Fig 8 Clutch Components And Inspection XJ CLUTCH 6 5 DIAGNOSIS AND TESTING Continued...
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Page 231: ...Fig 8 Clutch Components And Inspection XJ CLUTCH 6 5 DIAGNOSIS AND TESTING Continued...
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Page 647: ...Fig 16 2 5L Engine XJ 8W 90 CONNECTOR LOCATIONS 8W 90 23 DESCRIPTION AND OPERATION Continued...
Page 648: ...Fig 17 4 0L Engine 8W 90 24 8W 90 CONNECTOR LOCATIONS XJ DESCRIPTION AND OPERATION Continued...
Page 649: ...Fig 18 4 0L Engine XJ 8W 90 CONNECTOR LOCATIONS 8W 90 25 DESCRIPTION AND OPERATION Continued...
Page 662: ...Fig 31 Liftgate 8W 90 38 8W 90 CONNECTOR LOCATIONS XJ DESCRIPTION AND OPERATION Continued...
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Page 826: ...Fig 6 Frame Dimensions 13 8 FRAME AND BUMPERS XJ SPECIFICATIONS Continued...
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Page 1353: ...Fig 3 Hood Components XJ BODY 23 25 REMOVAL AND INSTALLATION Continued...
Page 1396: ...WELD LOCATIONS UPPER COWL 23 68 BODY XJ SPECIFICATIONS Continued...
Page 1397: ...UPPER COWL XJ BODY 23 69 SPECIFICATIONS Continued...
Page 1398: ...COWL 23 70 BODY XJ SPECIFICATIONS Continued...
Page 1399: ...A PILLAR XJ BODY 23 71 SPECIFICATIONS Continued...
Page 1400: ...A PILLAR 23 72 BODY XJ SPECIFICATIONS Continued...
Page 1401: ...A PILLAR XJ BODY 23 73 SPECIFICATIONS Continued...
Page 1402: ...A PILLAR 23 74 BODY XJ SPECIFICATIONS Continued...
Page 1403: ...B PILLAR XJ BODY 23 75 SPECIFICATIONS Continued...
Page 1404: ...D PILLAR 23 76 BODY XJ SPECIFICATIONS Continued...
Page 1405: ...FUEL FILLER OPENING XJ BODY 23 77 SPECIFICATIONS Continued...
Page 1406: ...CARGO AREA FLOOR PAN 23 78 BODY XJ SPECIFICATIONS Continued...
Page 1407: ...ROOF AND D PILLAR XJ BODY 23 79 SPECIFICATIONS Continued...
Page 1408: ...LIFTGATE OPENING 23 80 BODY XJ SPECIFICATIONS Continued...
Page 1409: ...ROOF XJ BODY 23 81 SPECIFICATIONS Continued...
Page 1410: ...ROOF 23 82 BODY XJ SPECIFICATIONS Continued...
Page 1411: ...FRAME RAIL XJ BODY 23 83 SPECIFICATIONS Continued...
Page 1412: ...FRAME RAIL 23 84 BODY XJ SPECIFICATIONS Continued...
Page 1413: ...FRAME RAIL XJ BODY 23 85 SPECIFICATIONS Continued...
Page 1414: ...FRAME RAIL 23 86 BODY XJ SPECIFICATIONS Continued...
Page 1415: ...REINFORCEMENT XJ BODY 23 87 SPECIFICATIONS Continued...
Page 1416: ...FRONT INNER FENDER 23 88 BODY XJ SPECIFICATIONS Continued...
Page 1417: ...FRONT INNER FENDER AND RADIATOR CLOSURE PANEL XJ BODY 23 89 SPECIFICATIONS Continued...
Page 1418: ...REINFORCEMENT 23 90 BODY XJ SPECIFICATIONS Continued...
Page 1419: ...FRONT FENDER XJ BODY 23 91 SPECIFICATIONS Continued...
Page 1420: ...BODY SIDE 23 92 BODY XJ SPECIFICATIONS Continued...
Page 1421: ...REAR WHEELHOUSE XJ BODY 23 93 SPECIFICATIONS Continued...
Page 1422: ...REAR INNER WHEELHOUSE 23 94 BODY XJ SPECIFICATIONS Continued...
Page 1423: ...BODY SIDE XJ BODY 23 95 SPECIFICATIONS Continued...
Page 1424: ...BODY SIDE 23 96 BODY XJ SPECIFICATIONS Continued...
Page 1425: ...BODY SIDE XJ BODY 23 97 SPECIFICATIONS Continued...
Page 1426: ...BODY SIDE 23 98 BODY XJ SPECIFICATIONS Continued...
Page 1427: ...BODY SIDE XJ BODY 23 99 SPECIFICATIONS Continued...
Page 1428: ...BODY SIDE 23 100 BODY XJ SPECIFICATIONS Continued...
Page 1429: ...UNDERBODY XJ BODY 23 101 SPECIFICATIONS Continued...
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Page 1439: ...UNDERBODY XJ BODY 23 111 SPECIFICATIONS Continued...
Page 1440: ...BODY SEALING LOCATIONS APPLICATION METHODS 23 112 BODY XJ SPECIFICATIONS Continued...
Page 1441: ...COWL AND DASH PANEL XJ BODY 23 113 SPECIFICATIONS Continued...
Page 1442: ...DASH PANEL AND FLOOR PAN 23 114 BODY XJ SPECIFICATIONS Continued...
Page 1443: ...FLOOR PAN XJ BODY 23 115 SPECIFICATIONS Continued...
Page 1444: ...REAR INNER WHEELHOUSE 23 116 BODY XJ SPECIFICATIONS Continued...
Page 1445: ...FRONT INNER WHEELHOUSE XJ BODY 23 117 SPECIFICATIONS Continued...
Page 1446: ...BODY SIDE 23 118 BODY XJ SPECIFICATIONS Continued...
Page 1447: ...BODY SIDE XJ BODY 23 119 SPECIFICATIONS Continued...
Page 1448: ...BODY SIDE 23 120 BODY XJ SPECIFICATIONS Continued...
Page 1449: ...ROOF PANEL XJ BODY 23 121 SPECIFICATIONS Continued...
Page 1450: ...FUEL FILLER HOUSING 23 122 BODY XJ SPECIFICATIONS Continued...
Page 1451: ...LIFTGATE OPENING XJ BODY 23 123 SPECIFICATIONS Continued...
Page 1452: ...STRUCTURAL ADHESIVE LOCATIONS LEFT QUARTER PANEL 23 124 BODY XJ SPECIFICATIONS Continued...
Page 1453: ...REAR WHEELHOUSE XJ BODY 23 125 SPECIFICATIONS Continued...
Page 1454: ...ROOF BOWS 23 126 BODY XJ SPECIFICATIONS Continued...
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