2004 Toyota Tundra timing belt

Tiny
PMOLL
  • MEMBER
  • 2004 TOYOTA TUNDRA
  • V8
  • 4WD
  • AUTOMATIC
  • 115,000 MILES
How critical is it to replace. I was told at 80000 it should have been replaced I bought. It with 90000 on it. It has the 4.7ltr motor in it. Can a Guy do himself?
Do you
have the same problem?
Yes
No
Sunday, May 2nd, 2010 AT 7:39 AM

1 Reply

Tiny
DAVE H
  • EXPERT
Engine damamge can occur if the belt breaks !

REMOVAL
REMOVE ENGINE UNDER COVER
DRAIN ENGINE COOLANT
DISCONNECT UPPER RADIATOR HOSE
DISCONNECT PS PUMP FROM ENGINE
Disconnect the 2 PS air hoses from the air intake chamber and resonator.
Remove the bolt holding the PS pressure tube clamp to the frame.
Remove the drive belt (See REMOVAL ).
Remove the bolt and nut, and disconnect the PS pump from the engine.
Fig. 3: Disconnecting PS Pump From Engine
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
DISCONNECT A/C COMPRESSOR FROM ENGINE
Disconnect the A/C compressor connector.
Remove the drive belt (See REMOVAL ).
Remove the 4 bolts, and disconnect the A/C compressor from the engine.
LOOSEN FAN WITH FLUID COUPLING AND FAN PULLEYS
REMOVE DRIVE BELT FOR GENERATOR
REMOVE NO. 2 FAN SHROUD
REMOVE FAN WITH FLUID COUPLING AND FAN PULLEYS
Fig. 4: Disconnecting A/C Compressor
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
REMOVE A/C COMPRESSOR BRACKET
Remove the 5 bolts and A/C compressor bracket.
DISCONNECT UPPER RADIATOR HOSE
Fig. 5: Removing A/C Compressor Bracket
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
REMOVE NO. 2 TIMING BELT COVER
Disconnect the camshaft position sensor connector from the timing belt cover.
Disconnect the 4 high-tension cord clamps from the timing belt cover.
Remove the 6 bolts and timing belt cover.
Fig. 6: Removing Timing Belt Cover
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
REMOVE FAN BRACKET
Remove the nut and PS pump adjusting strut.
Remove the bolt, nut and fan bracket.
Fig. 7: Removing Fan Bracket
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
SET NO. 1 CYLINDER AT TDC/COMPRESSION
Turn the crankshaft pulley and align its groove with timing mark "0" of the No. 1 timing belt cover.
Check that the timing marks of the camshaft timing pulleys and No. 3 timing belt cover are aligned.
If not, turn the crankshaft pulley 1 revolution (360 ).
Fig. 8: Adjusting No.1 Cylinder At TDC / Compressor
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
HINT:
When re-using timing belt:
Place the matchmarks on the timing belt and camshaft timing pulleys, and place matchmark on timing belt to match the end of the No.1 timing belt cover.
Fig. 9: Placing Matchmarks For Proper Installation Of Used Timing Belt
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
REMOVE TIMING BELT TENSIONER
Alternately loosen the 2 bolts, and remove them, the belt tensioner and dust boot.
REMOVE TIMING BELT
Fig. 10: Removing Timing Belt Tensioner
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
REMOVE RH CAMSHAFT TIMING PULLEY
Using SST, loosen the pulley bolt.
SST 09960-10010 (09962-01000, 09963-01000)
Fig. 11: Removing RH Camshaft Timing Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
REMOVE LH CAMSHAFT TIMING PULLEY
Using SST, loosen the pulley bolt.
SST 09960-10010 (09962-01000, 09963-01000)
Remove the bolt, knock pin and camshaft timing pulley.
Fig. 12: Removing LH Camshaft Timing Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
REMOVE CRANKSHAFT PULLEY
Using SST, loosen the pulley bolt.
SST 09213-54015 (90119-08216), 09330-00021
Remove the SST, pulley bolt and pulley.
Fig. 13: Removing Crankshaft Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
HINT:
If necessary, remove the pulley with SST and service bolt.
SST 09950-50013 (09551-05010, 09552-05010, 09553-05020, 09554-05031)
Fig. 14: Removing Pulley with SST Service Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
REMOVE STARTER WIRE BRACKET AND NO. 1 TIMING BELT COVER
Remove the 2 bolts and starter wire bracket.
Remove the 4 bolts and timing belt cover.
REMOVE TIMING BELT GUIDE
Fig. 15: Removing Starter Wire Bracket No.1 Timing Belt Cover
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
REMOVE TIMING BELT
HINT:
When re-using timing belt:
If the installation marks have disappeared, place a new installation mark on the timing belt to match the drilled mark of the crankshaft timing pulley.
REMOVE NO. 2 IDLER PULLEY
Remove the bolt and idler pulley.
REMOVE NO. 1 IDLER PULLEY
Using a 10 mm hexagon wrench, remove the pivot bolt, idler pulley and plate washer.
Fig. 16: Removing Timing Belt
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
REMOVE CRANKSHAFT TIMING PULLEY
Remove the crankshaft timing pulley.
HINT:
If the pulley cannot be removed by hand, use SST and service bolt to remove the crankshaft timing pulley.
SST 09950-50013 (09951-05010, 09952-05010, 09953-05020, 09954-05011)
Fig. 17: Removing Crankshaft Timing Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSPECTION
INSPECT TIMING BELT
NOTE:Do not bend, twist or turn the timing belt inside out. Do not allow the timing belt to come into contact with oil, water or steam. Do not utilize timing belt tension when installing or removing the mount bolt of the camshaft timing pulley. If there is any defect, as shown in the illustration, check these points:

Premature parting.
Check for proper installation.
Check the timing cover gasket for damage and proper installation.
If the belt teeth are cracked or damaged, check to see if either camshaft is locked.
If there is noticeable wear or cracks on the belt face, check to see if there are nicks on the side of the idler pulley lock and water pump.
If there is wear or damage on even one side of the belt, check the belt guide and the alignment of each pulley.
If there is noticeable wear on the belt teeth, check timing cover for damage and check that gasket has been installed correctly and for foreign material on the pulley teeth.
If necessary, replace the timing belt.
Fig. 18: Inspecting Timing Belt
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSPECT IDLER PULLEYS
Visually check the seal portion of the idler pulley for oil leakage.
If leakage is found, replace the idler pulley.
Fig. 19: Inspecting Idler Pulleys
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
Check that the idler pulley turns smoothly.
If necessary, replace the idler pulley.
Fig. 20: Checking Idler Pulleys Movement
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSPECT TIMING BELT TENSIONER
Visually check the seal portion of the tensioner for oil leakage.
HINT:
If there is only the faintest trace of oil on the seal on the push rod side, the tensioner is all right.
If leakage is found, replace the tensioner.
Fig. 21: Inspecting Timing Belt Tensioner
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
Hold the tensioner with both hands and push the push rod strongly as shown to check that it doesn't move.
If the push rod moves, replace the tensioner.
NOTE:Never hold the tensioner push rod facing downward.

Fig. 22: Checking Push Rod Movement Of Timing Belt Tensioner
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
Measure the protrusion of the push rod from the housing end.
Protrusion: 10.0 - 10.8 mm (0.394 - 0.425 in.)
If the protrusion is not as specified, replace the tensioner.
Fig. 23: Measuring Protrusion Of Push Rod From Housing End
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSTALLATION
INSTALL CRANKSHAFT TIMING PULLEY
Align the pulley set key with the key groove of the timing pulley and slide it on the timing pulley.
Slide on the timing pulley, facing the flange side inward.
NOTE:Do not scratch the sensor part of the crankshaft timing pulley.

Fig. 24: Installing Crankshaft Timing Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSTALL NO. 1 IDLER PULLEY
Apply adhesive 2 or 3 threads of the pivot bolt.
Adhesive: Part No. 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent
Using a 10 mm hexagon wrench, install the plate washer and idler pulley with the pivot bolt.
Torque: 35 N.M (350 kgf. Cm, 26 ft. Lbf)
Check that the pulley bracket moves smoothly.
INSTALL NO. 2 IDLER PULLEY
Install the idler pulley with the bolt.
Torque: 40 N.M (400 kgf. Cm, 30 ft. Lbf)
Check that the pulley moves smoothly.
Fig. 25: Installing No.1 Idler Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
TEMPORARILY INSTALL TIMING BELT
NOTE:The engine should be cold.

Use the crankshaft pulley bolt to turn the crankshaft and align the timing marks on the crankshaft timing pulley and on the oil pump body.
Remove any oil or water on the crankshaft timing pulley, idler pulley and water pump pulley, and keep them clean.
NOTE:Only wipe the pulleys; do not use any cleansing agent.

Fig. 26: Installing Timing Belt (Properly)
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
Align the installation mark on the timing belt with the drilled mark of the crankshaft timing pulley.
Install the timing belt on the crankshaft timing pulley, No. 1 idler pulley and water pump pulley.
Fig. 27: Aligning Installation Mark
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSTALL TIMING BELT GUIDE
Install the guide, facing the cup side outward.
Fig. 28: Installing Timing Belt Guide
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSTALL NO. 1 TIMING BELT COVER AND STARTER WIRE BRACKET
Check that the timing belt cover gaskets have cracks or peeling, etc.
If the gasket does have cracks or peeling, etc, replace it using these steps, peeling, etc, replace them using these steps.
Using a screwdriver and gasket scraper, remove all the old gasket materials.
Thoroughly clean all components to remove all the loose material.
Remove the backing paper from a new gasket and install the gasket evenly to the part of the belt cover shaded back in the illustration.
Install the timing belt cover with the 4 bolts.
Torque: 9 N.M (90 kgf. Cm, 80 in. Lbf)
Install the starter wire bracket with the 2 bolts.
Fig. 29: Installing No.1 Timing Belt Cover Starter Wire Bracket
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSTALL CRANKSHAFT PULLEY
Align the pulley set key with the key groove of the pulley, and slide it on the pulley.
Using SST, install and torque the bolt.
SST 09213-54015 (90119-08216), 09330-00021
Torque: 295 N.M (2,950 kgf. Cm, 217 ft. Lbf)
Fig. 30: Installing Crankshaft Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSTALL LH CAMSHAFT TIMING PULLEY
Slide the timing pulley, facing the flange side outward.
Align the knock pin hole of the camshaft with the knock pin groove of the timing pulley as shown.
Install the knock pin.
Using SST, install and torque the bolt.
SST 09960-10010 (09962-01000, 09963-01000)
Torque: 110 N.M (1,100 kgf. Cm, 81 ft. Lbf)
Fig. 31: Installing LH Camshaft Timing Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
SET NO. 1 CYLINDER TO TDC/COMPRESSION
Crankshaft Position:
Turn the crankshaft pulley, and align its groove with the "0" timing mark of the No. 1 timing belt cover.
Fig. 32: Adjusting No.1 Cylinder To TDC / Compression
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
RH Camshaft Position:
Turn the camshaft, and align the knock pin hole of the camshaft with the timing mark of the No. 3 timing belt cover.
LH Camshaft Pulley Position:
Turn the camshaft timing pulley, and align the timing marks of the camshaft timing pulley and No. 3 timing belt cover.
Fig. 33: Aligning Knock Pin Hole Timing Mark
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSTALL TIMING BELT TO LH CAMSHAFT TIMING PULLEY
HINT:
When re-using timing belt:
Check that the installation mark on the timing belt matches the end of the No. 1 timing belt cover.
If the installation mark do not align, shift the meshing of the timing belt and crankshaft timing pulley until they align.
Fig. 34: Aligning Matchmark For Reuse Of Timing Belt
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
Remove any oil or water on the LH camshaft timing pulley, and keep it clean.
Using SST, slightly turn the LH camshaft timing pulley clockwise. Align the installation mark on the timing belt with the timing mark of the camshaft timing pulley, and hang the timing belt on the LH camshaft timing pulley.
SST 09960-10010 (09962-01000, 09963-01000)
Fig. 35: Installing Timing Belt To LH Camshaft Timing Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
Using SST, align the timing marks of the LH camshaft pulley and No. 3 timing belt cover.
SST 09960-10010 (09962-01000, 09963-01000)
Check that the timing belt has tension between the crankshaft timing and LH camshaft timing pulleys.
Fig. 36: Aligning Timing Mark Of LH Camshaft Pulley No.3
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSTALL RH CAMSHAFT TIMING PULLEY AND TIMING BELT
Remove any oil or water on the RH camshaft timing and No. 2 idler pulleys, and keep them clean.
Align the installation mark on the timing belt with the timing mark of the RH camshaft timing pulley as shown.
Hang the timing belt on the RH camshaft timing pulley.
Align the timing marks of the RH camshaft timing pulley and No. 3 timing belt cover.
Slide the RH camshaft timing pulley on the camshaft.
Fig. 37: Aligning Matchmark On Timing Belt with Timing Mark Of RH Camshaft Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
Using SST, align the knock pin hole of the camshaft with knock pin groove marked R of the pulley and install the knock pin.
SST 09960-10010 (09962-01000, 09963-01000)
Using SST, install and torque the bolt.
SST 09960-10010 (09962-01000, 09963-01000)
Torque: 110 N.M (1,100 kgf. Cm, 81 ft. Lbf)
Fig. 38: Aligning Knock Pin Hole Knock Pin Groove
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
SET TIMING BELT TENSIONER
Using a press, slowly press in the push rod using 981 - 9,807 N (100 - 1,000 kgf, 220 - 2,205 lbf) of pressure.
Align the holes of the push rod and housing, pass a 1.5 mm hexagon wrench through the holes to keep the setting position of the push rod.
Release the press.
Fig. 39: Adjusting Timing Belt Tensioner
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
Install the dust boot to the tensioner.
Fig. 40: Installing Dust Boot To Tensioner
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSTALL TIMING BELT TENSIONER
Install the tensioner with the 2 bolts.
Torque: 27 N.M (275 kgf. Cm, 20 ft. Lbf)
Remove the 1.5 mm hexagon wrench from the tensioner.
Fig. 41: Installing Timing Belt Tensioner
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
CHECK VALVE TIMING
Turn the crankshaft pulley 2 revolutions from TDC to TDC.
NOTE:Always turn the crankshaft clockwise.

Check that each pulley aligns with the timing marks as shown in the illustration.
If the marks do not align, remove the timing belt and reinstall it.
Fig. 42: Turning Crankshaft Pulley From TDC To TDC
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSTALL FAN BRACKET
Install the fan bracket with the bolt and nut.
Install the PS pump adjusting strut with the nut.
Fig. 43: Installing Fan Bracket
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
INSTALL NO. 2 TIMING BELT COVER
Check that the timing belt cover gasket has no cracks or peeling, etc.
If the gasket does have cracks or peeling, etc, replace it using these steps.
Using a screwdriver and gasket scrapers, remove all the old gasket materials.
Thoroughly clean all components to remove all the loose material.
Remove the backing paper from a new gasket and install the gasket evenly to the part of the belt cover shaded black in the illustration.
Install the belt cover with the 6 bolts.
Torque: 9 N.M (90 kgf. Cm, 80 in. Lbf)
Connect the 4 high-tension cord clamps to the No.2 timing belt cover.
Connect the camshaft position sensor connector to the timing belt cover.
INSTALL A/C COMPRESSOR BRACKET
Torque: 47 N.M (479 kgf. Cm, 35 ft. Lbf)
Fig. 44: Installing Timing Belt No. 2 Cover
Courtesy of TOYOTA MOTOR SALES, U.S.A, INC.
TEMPORARILY INSTALL FAN WITH FLUID COUPLING AND FAN PULLEYS
INSTALL NO. 2 FAN SHROUD
INSTALL AND ADJUST DRIVE BELT FOR GENERATOR (See REMOVAL & INSTALLATION )
TIGHTEN FAN WITH FLUID COUPLING AND FAN PULLEYS
Torque: 5.4 N.M (54 kgf. Cm, 48 in. Lbf)
CONNECT A/C COMPRESSOR TO ENGINE
Install the A/C compressor with the 4 bolts.
Torque: 25 N.M (250 kgf. Cm, 18 ft. Lbf)
Install and adjust the drive belt (See INSTALLATION ).
Connect the A/C compressor connector.
CONNECT PS PUMP TO ENGINE
Temporarily install the PS pump with the bolt and nut.
Install and adjust the drive belt (See INSTALLATION ).
Tighten the bolt and nut.
Torque: 43 N.M (440 kgf. Cm, 31 ft. Lbf)
Install the PS pressure tube clamp with the bolt.
Connect the 2 PS air hoses to the air intake chamber and resonator.
CONNECT UPPER RADIATOR HOSE
FILL ENGINE WITH COOLANT
START ENGINE CHECK FOR LEAKS
INSTALL ENGINE UNDER COVER
ROAD TEST VEHICLE
Check for abnormal noise, shock, slippage, correct shift points and smooth operation.
Was this
answer
helpful?
Yes
No
Friday, September 17th, 2010 AT 4:15 AM

Please login or register to post a reply.

Recommended Guides