1-29
1-29TX / TXH / TXB 180S - 400L (Rev. 4/23/07)TX / TXH / TXB 180S - 400L (Rev. 4/23/07)
PPrroobblleemm CCaauussee CCoorrrreeccttiioonn
39.39. Engine noEngine noise ise isis
excessiveexcessive
(Connecting Rod)(Connecting Rod)
(Continued)(Continued)
9.9. ConConnecnectinting rog rod and and bed beariarings ngs areare
damaged or worn, are notdamaged or worn, are not
assembled correctly, or are theassembled correctly, or are the
wrong bearings.wrong bearings.
9.9. InsInspecpect tt the he conconnecnectinting rg rod od andand
bearings. bearings. Replace Replace damaged damaged partsparts
or incorrect bearings if required.or incorrect bearings if required.
Re-assemble connecting rod andRe-assemble connecting rod and
bearings if necessary.bearings if necessary.
40.40. Engine Engine noise noise isis
excessiveexcessive
(Main Bearing)(Main Bearing)
1.1. EnEngigine oine oil prl presessusure is bre is belelowow
normal.normal.
2.2. EngEngine ine oil oil levlevel iel is bes below low nornormalmal..
3.3. OiOil il is ts thihin on or dr dililututeded..
4.4. MaiMain ben beariaring cng capsapscrecrews aws are lre loosoose,e,
worn or not tightened correctly.worn or not tightened correctly.
5.5. MaMain bin beaeariringngs ars are dae damamageged ord or
worn, or the wrong bearings areworn, or the wrong bearings are
installed.installed.
6.6. BloBlock sck stiftiffenfener per platlate is e is mismisas-as-
sembled.sembled.
7.7. CraCranksnkshafhaft jot journurnals als are are damdamageagedd
or out of round.or out of round.
8.8. FlyFlywhewheel oel or flr flexpexplatlate cae capscpscrewrewss
are loose or broken.are loose or broken.
1.1. CheCheck ck the the oil oil prepressussure. re. If If the the prepres-s-
sure is low, refer to Problem 8. insure is low, refer to Problem 8. in
this troubleshooting chart.this troubleshooting chart.
2.2. CheCheck ck the the oil oil levlevel. el. FilFill tl the he syssystemtem
to the specified level.to the specified level.
3.3. RefRefer ter to Coo Correrrectiction 2on 2. of . of ProProbleblemm
22. in this troubleshooting chart.22. in this troubleshooting chart.
4.4. ChChececk thk the toe torqrque oue on thn the mae mainin
bearing bearing capscrews. capscrews. Inspect Inspect thethe
capscrews for capscrews for wearwear. . Tighten caps-Tighten caps-
crews to the correct torque value.crews to the correct torque value.
Replace worn capscrews.Replace worn capscrews.
5.5. InsInspecpect tt the mhe main ain beabearinrings fgs for dor dam-am-
age, excessive wear, and the cor-age, excessive wear, and the cor-
rect part rect part number. number. Replace mReplace mainain
bearings if required.bearings if required.
6.6. RemRemove aove and innd inspespect blct block sock stiftiffenfenerer
plate. plate. Re-assemble Re-assemble block block stiffenerstiffener
plate if required.plate if required.
7.7. RefRefer ter to Coo Correrrectiction 6on 6. of . of ProProbleblemm
39. in this troubleshooting chart.39. in this troubleshooting chart.
8.8. CheCheck tck the fhe flywlywheel heel or flor flexpexplatlate ande and
the the mounting mounting capscrews. capscrews. TightenTighten
capscrews to the correct torquecapscrews to the correct torque
value. value. Replace Replace damaged damaged caps-caps-
crews.crews.
41.41. Engine Engine noise noise isis
excessiveexcessive
(Piston)(Piston)
continuedcontinued
1.1. EleElectrctronic onic faufault clt codes odes actactive ive oror
high counts of inactive fault codes.high counts of inactive fault codes.
2.2. IncIncorrorrect ect fuefuel grl grade ade is bis being eing useusedd
or fuel quality is poor.or fuel quality is poor.
3.3. OvOvererhehead adad adjujuststmementnts ares are
incorrect.incorrect.
4.4. InjInjectector or is is malmalfunfunctictionioning.ng.
1.1. ReaRead thd the fae fault ult codcodes wes with ith an ean eleclec--
tronic stronic service tool. ervice tool. Refer tRefer too
Correction 2. of Problem 2. in thisCorrection 2. of Problem 2. in this
troubleshooting chart.troubleshooting chart.
2.2. Use Use the the corcorrecrect gt grade rade of of fuefuel.l.
3.3. MeaMeasursure ane and add adjusjust tt the ohe oververheaheadd
settings.settings.
4.4. PerPerforform tm the he autautomaomated ted cylcylindinderer
performance test (refer to engineperformance test (refer to engine
manufacturer’s Troubleshootingmanufacturer’s Troubleshooting
and and Repair Repair Manual). Manual). ReplaceReplace
injectors if required.injectors if required.
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