timing chain diagram

2001 TOYOTA COROLLA
4 CYL • FWD • AUTOMATIC
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ALLSEASONAUTOSALES
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How to replace a timing chain? Timing chain diagram needed.
Jan 6, 2011 at 6:19 PM
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KHLOW2008
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Timing chain removal:

1. Disconnect negative battery cable. Drain cooling system. Remove windshield washer fluid reservoir. Rotate accessory drive belt tension-er clockwise (viewed from timing chain end of engine) to release tension from accessory drive belt. Remove accessory drive belt. Remove mounting bolts and generator.

2. Using spanner wrench in holes on front of power steering pump pulley, hold power steering pump pulley while removing power steering pump pulley nut. Remove power steering pump pulley from power steering pump. Remove bolts/nuts and power steering pump. Secure power steering pump aside.

3. Raise and support vehicle. Remove passenger's side front wheel and lower engine cover. Support oil pan with floor jack and wooden block. Remove right (timing chain side) engine mount insulator-to-engine mount bracket bolts/nuts. Remove right (timing chain side) engine mount insulator-to-body bolts.

4. Remove ignition coils from spark plugs. Disconnect spark plug wires from spark plugs. Disconnect necessary hoses and engine wiring cover for removal of valve cover. Remove valve cover bolts/nuts, seal washers, cable bracket, valve cover and gasket.

5. Rotate crankshaft clockwise (viewed from timing chain end of engine) until crankshaft pulley timing mark (groove) aligns with "0" mark on timing chain cover and cylinder No. 1 is at TDC on compression stroke. Cylinder number one is the front cylinder at timing chain end of engine.

6. Ensure timing marks on camshaft sprockets are aligned and positioned in a straight line at top surface on timing chain cover. See Fig. 2 . If timing marks are not as specified, rotate crankshaft clockwise one full revolution (360 degrees) and realign crankshaft pulley timing mark (groove) with "0" mark on timing chain cover and then recheck timing mark alignment.

7. Using Pulley Holder (SST 09213-70010) and Handle (SST 09330-00021), hold crankshaft pulley. Remove crankshaft pulley bolt. Using puller, remove crankshaft pulley.

8. Remove bolts and crankshaft position sensor. See Fig. 5 . Remove bolts/nuts and accessory drive belt tension-er. Remove bolts and right (timing chain side) engine mount bracket from front of cylinder block.

9. Remove bolt and timing chain tension-er from side of timing chain cover. Note location of water pump bolts for installation reference. Remove bolts, water pump and "O" ring. See Fig. 5

10. Remove bolts/nuts, stud bolt and timing chain cover. Timing chain cover may be removed by prying between cylinder head and timing chain cover at the area just above water pump opening on timing chain cover.

11. Remove crank angle sensor plate, bolt and timing chain tension-er slipper. See Fig. 5 .

12. Remove crankshaft sprocket with timing chain. If crankshaft sprocket cannot be removed by hand, place shop towels against front of cylinder block, just behind crankshaft sprocket. Using screwdrivers, pry crankshaft sprocket with timing chain from crankshaft. Remove bolts and timing chain vibration damper. See Fig. 5 .

CAUTION:Use care not to damage valve lifter or cylinder head when
removing camshaft sprocket.

13. If necessary to remove camshaft sprockets, hold camshaft by placing wrench at hexagonal area near center of camshaft. DO NOT damage cylinder head or valve lifter. Remove bolt and camshaft sprocket from camshaft. If necessary to remove crankshaft front seal, use hammer and drift to remove seal from timing chain cover.


Installation

1. Use hammer and Seal Installer (SST 09309-37010) to install crankshaft front seal in timing chain cover (if removed). Install seal until seal surface is even with timing chain cover. Apply grease to lip of oil seal.

2. If installing camshaft sprocket, align groove in camshaft sprocket with pin in camshaft. Install camshaft sprocket on camshaft. Install and tighten camshaft sprocket bolt to specification.

3. Rotate camshafts by using hexagonal area on camshaft so timing marks on camshaft sprockets are aligned. See Fig. 2 . Temporarily install crankshaft pulley bolt in crankshaft.

4. Using crankshaft pulley bolt, rotate crankshaft clockwise so key in crankshaft is positioned at 12 o'clock. Remove crankshaft pulley bolt. Install timing chain vibration damper. Tighten bolt to specification.

5. Install timing chain on crankshaft sprocket so No. 1 marked link on timing chain aligns with timing mark on crankshaft sprocket. Perform STEP 1 in illustration. See Fig. 29 . Ensure timing mark on crankshaft sprocket is pointing toward front of engine. It may be necessary to use hammer and Seal/Sprocket Installer (SST 09223-22010) to tap crankshaft sprocket onto crankshaft.

6. Install timing chain on camshaft so No. 53 and 67 marked links align with timing marks with the 2 dots on camshaft sprockets. Perform STEP 2 in illustration. See Fig. 29 . Ensure tension exists on timing chain between crankshaft sprocket and camshaft sprocket on intake camshaft.

7. Install timing chain tension-er slipper between intake camshaft sprocket and crankshaft sprocket so that slipper engages with cylinder head stopper. Perform STEP 3 in illustration. See Fig. 29 . DO NOT rotate crankshaft when installing timing chain tension-er slipper. Install and tighten timing chain tension-er slipper bolt to specification

8. Install crank angle sensor plate on crankshaft so that "F" mark is facing toward timing chain end of engine. Perform STEP 4 in illustration. See Fig. 29 .

9. Ensure sealing surfaces on rear of timing chain cover and front of cylinder block and cylinder head are clean. Apply sealant on rear of timing chain cover and front of cylinder block and cylinder head at specified areas. See Fig. 30 or Fig. 31 .

CAUTION: When installing timing chain cover, use care not to allow timing chain and timing chain tension-er slipper to contact sealant surfaces on timing chain cover. After installing timing chain cover and water pump, the accessory drive belt tension-er and right (timing chain side) engine mount bracket must be installed within fifteen minutes.

10. Install new "O" ring on water pump. Install timing chain cover, water pump and bolts/nuts. Ensure proper length bolts and stud bolt are installed in proper area when installing timing chain cover and water pump. See Fig. 51 or Fig. 53 . Tighten bolts/nuts and stud bolt to specification.

11. Install right (timing chain side) engine mount bracket. Apply thread sealant to center of the threads on bolts for right (timing chain side) engine mount bracket. Do not apply sealant on the last three threads of these bolts. Install and tighten bolts to specification.

12. Install accessory drive belt tension-er. Tighten bolts/nuts to specification. Using wrench, rotate accessory drive belt tension-er three times the full length of its travel.

13. Install crankshaft position sensor. Tighten bolt to specification. Align crankshaft pulley key groove with key in crankshaft. Install crankshaft pulley. Install and tighten crankshaft pulley bolt to specification while holding crankshaft pulley with pulley holder.

14. Depress pawl on timing chain tension-er downward while pushing the plunger fully inward and then engage the hook with the pin on plunger to hold plunger in retracted position. Perform STEP 1 in illustration. See Fig. 28.

15. Install timing chain tension-er by hand until "O" ring on timing chain tension-er contacts the chamfered position and then install bolts. Gradually tighten bolts to move timing chain tension-er inward to fully installed position. Tighten bolt to specification.

15. Using crankshaft pulley bolt, rotate crankshaft counterclockwise (viewed from timing chain end of engine) and disengage hook from pin on plunger of timing chain tension-er. Rotate crankshaft clockwise and check that plunger on timing chain tension-er is extended and timing chain tension-er slipper is pushed inward toward timing chain. If plunger on timing chain tension-er is not extended out against timing chain tension-er slipper, use screwdriver to push timing chain tension-er slipper toward plunger on timing chain tension-er until hook is released from pin.

17. To check valve timing, rotate crankshaft clockwise (viewed from timing chain end of engine) until crankshaft pulley timing mark (groove) aligns with "0" mark on timing chain cover and cylinder number one is at TDC on compression stroke. Cylinder number one is front cylinder at timing chain end of engine.

18. Ensure timing marks on camshaft sprockets are aligned and positioned in a straight line at top surface on timing chain cover. See Fig. 2 . If timing marks are not as specified, rotate crankshaft clockwise one full revolution (360 degrees) and realign crankshaft pulley timing mark (groove) with "0" mark on timing chain cover and then recheck timing mark alignment. If timing marks are still not aligned, timing chain is incorrectly installed.

19. Before installing valve cover and gasket, apply sealant at specified areas on cylinder head. See Fig. 9 . Install gasket, valve cover, seal washers, bolts and nuts. Tighten valve cover bolts/nuts to specification in sequence. See Fig. 52 . To install remaining components, reverse removal procedure. Tighten bolts/nuts to specification. Fill cooling system.

© 2008 Mitchell Repair Information Co., LLC.
Jan 14, 2011 at 3:50 PM
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IWYCHE
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How do I know if I'm top dead center
Aug 18, 2017 at 10:27 PM
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STRAILER
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There is a timing mark on the front of the engine balance that will say 0 TDC align the marks and you are all set.
Aug 19, 2017 at 12:57 PM
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IWYCHE
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The bottom shaft?
Aug 19, 2017 at 6:09 PM
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STRAILER
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Yes, the bottom shaft is the crankshaft.
Aug 20, 2017 at 2:24 PM
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IWYCHE
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And if I line up that line on that sprocket to the line marked on the case it will be tdc?
Aug 20, 2017 at 4:39 PM
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STRAILER
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Yep it will be on TDC
Aug 21, 2017 at 11:26 AM
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IWYCHE
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Thanks
Aug 21, 2017 at 7:09 PM
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JIMRPEOPLES
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Is it time to be concerned about changing the belt.

Thanks, Jim
Dec 24, 2018 at 12:18 PM (Merged)
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MMPRINCE4000
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According to my manual your 2000 has a chain. Unless it is making noise while running, the chain and its components could last a couple hundred thousand miles, given proper maintenance

Heres some diagrams if you decide to take this one on yourself
Dec 24, 2018 at 12:18 PM (Merged)
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HAROLD72
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I am replacing pistons rings on this vehicle, previously i replaced the cylinder head but i can see the timing is off, how can i make sure is right?
Dec 24, 2018 at 12:19 PM (Merged)
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RASMATAZ
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Put the engine no.1 piston on its compression stroke/TDC and align cam and crankshafts markings as indicated in the repair manual
Dec 24, 2018 at 12:19 PM (Merged)
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ARKY187
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Engine Mechanical problem
2000 Toyota Corolla 4 cyl Front Wheel Drive Automatic
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need to know the timing mark locations for a 200 Toyota corolla asap
Dec 24, 2018 at 12:19 PM (Merged)
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RASMATAZ
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What timing marks are you looking for? is it the camshaft and crankshaft alignment marks or the igniton timing
Dec 24, 2018 at 12:19 PM (Merged)
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AURORABOB
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Was told by a friend that I should have the timing belt and water pump changed at 60,000. Which do I have? How much should it cost? Can I wait til 70,000 miles or would that be risky, stupid?
Dec 24, 2018 at 12:19 PM (Merged)
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BLUELIGHTNIN6
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Your vehicle has a timing chain which should only be replaced if it is damaged. No specific interval to replace it nor the water pump. If you suspect damage is done to the pump or chain, then you should have it inspected by a mechanic.
Dec 24, 2018 at 12:19 PM (Merged)
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AURORABOB
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Thanks for the reply. I've never replaced a timing chain before or a water pump. Don't usually keep a car this long. What are symptoms of a bad chain or pump? Sound? Leaks? 58,000 miles.
Dec 24, 2018 at 12:19 PM (Merged)
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BLUELIGHTNIN6
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bad chain it wouldn't run, bad water pump it would leak coolant, cause horrible noise and overheat
Dec 24, 2018 at 12:19 PM (Merged)
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MMPRINCE4000
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Are you having a specific problem or just what your friend said?

The only maint. on the 1ZZFE VVTi engine is to change coolant every 2 years and plugs at 100k.

Of course change oil, brake pads as needed etc.
Dec 24, 2018 at 12:19 PM (Merged)
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AURORABOB
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You guys are great. Thanks for the replies. Having NO trouble at this time, knock on wood. Thanks again for the tips and info.
Dec 24, 2018 at 12:19 PM (Merged)
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MMPRINCE4000
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Thanks for using 2carpros.
Dec 24, 2018 at 12:19 PM (Merged)
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ARGELIO01
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Engine Mechanical problem
2001 Toyota Corolla 4 cyl Two Wheel Drive Automatic

Can you help me to find out the timing marks on my 01 corrolla 1.8 a/t
Oct 14, 2020 at 1:07 PM (Merged)
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MHPAUTOS
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Hi there, Timing chain info, see pic. Mark (mhpautos)


https://www.2carpros.com/forum/automotive_pictures/61395_Graphic_101.jpg

Oct 14, 2020 at 1:07 PM (Merged)
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NARA
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tazz toyota time belt how does it work en can it be the cause for my car driving but it feels like when u add power its not taking. and it as a brr sound
Oct 14, 2020 at 1:07 PM (Merged)
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MHPAUTOS
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The timing belt drives the cam shaft which operate the valve train, this belt is driven by the crank shaft, if it slips the engine will not run at all, i would be having the clutch checked as what you describe sounds like a slipping clutch.

mark (mhpautos)
Oct 14, 2020 at 1:07 PM (Merged)
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LFRERKER
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Engine Mechanical problem
1999 Toyota Corolla 4 cyl Automatic 97,000 miles
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I was wondering if anyone know when the timing belt needs to be changed on a 1999 toyota corolla?
Oct 14, 2020 at 1:08 PM (Merged)
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RASMATAZ
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Sir you have a timing chain
Oct 14, 2020 at 1:08 PM (Merged)
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SCOTTDKP
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Wow that's good to know. Mr. Lube just informed me that when my 1999 Corolla started it sounded a bit 'rough' (although it sounds ok to me) and I should immediately consider changing the timeing belt because 'Thats what kills these cars most often' lol.

Sigh :)
Oct 14, 2020 at 1:08 PM (Merged)
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MMPRINCE4000
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Now you know to avoid "Mr Lube" for any repairs :) .
Oct 14, 2020 at 1:08 PM (Merged)
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WILLIAM OLIVER
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from 1998 to now toyota corolla dont use no more timing belt ( only timing chaing ) so if you hear any noise from the front of the engine ck the oil level ..maybe is low and the timing chaing may make some noise
Oct 14, 2020 at 1:08 PM (Merged)
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BLUELIGHTNIN6
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your vehicle is equipped with a timing chain, not a timing belt. chains only need replaced if they have broken or become loose. do you still need replacement procedures?
Oct 14, 2020 at 1:08 PM (Merged)