Need to remove bottom of timing belt cover

Tiny
CHRISTA DICKSON
  • MEMBER
  • 1998 LEXUS GS 300
  • 250,000 MILES
I accidently dropped a butt connector down into the lower part of the timing belt cover need easiest directions to remove the cover to get it out will I need any speacial tools? Or directions of how to remove the cover so that I can remove it with as little disassembly as possiable
Tuesday, May 12th, 2020 AT 9:41 AM

22 Replies

Tiny
ASEMASTER6371
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Good evening,

You will need to remove the serpentine drive belt to start.

The you will need to remove the water pump pulley with 4 bolts.

You will need to remove the harmonic balancer. The center bolt will really be tight You will need air gun or electric gun to get it out.

Then you can remove the lower cover. I attached a picture for you of the lower cover.

Another thing to try is to remove the upper cover and if you have a compressor, or you can borrow one, use compressed air into the lower cover and see if it will blow the piece out.

Roy
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Tuesday, May 12th, 2020 AT 4:33 PM
Tiny
CHRISTA DICKSON
  • MEMBER
  • 138 POSTS
I can't see it anymore. I went and bought a magnetic pick up tool today and then headed back to my car and I guess somehow it went further down in there, with a friends help watching the belt I carefully started it and it seemed okay, so I drove it home. Just curious where would it most likely end up? Bottom of oil pan or should I do anything further to avoid any major damage? I know it sounds horrible but i'm hoping it will be okay. :/
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Tuesday, May 12th, 2020 AT 10:34 PM
Tiny
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It is at the bottom, it will be thrown around the timing belt area under the cover.

The issue could be if it gets between the belt and one of the driven components, it will cause the belt to come out of time and cause the engine to lack power and require the replacement of the timing belt and its components.

https://www.2carpros.com/articles/how-a-timing-belt-works

Roy
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Wednesday, May 13th, 2020 AT 3:24 AM
Tiny
CHRISTA DICKSON
  • MEMBER
  • 138 POSTS
I tried blowing it out with compressed air and seen something come out so I assumed I had gotten it. I got out to the car and started it, I had not put the car in gear yet. I was just sitting idling (not accelerating or moving). Or I heard the belt pop. I'm freaking right now I attached a picture of what happen. Since I was not moving at all is there any chance I can get away with replacing it? Or is the engine ruined? I really hope it not but please let me know what you think. I really hope it pray it's salvageable if I put in the work to fix it because i'm broke and cannot afford another vehicle.
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Wednesday, May 13th, 2020 AT 7:23 PM
Tiny
ASEMASTER6371
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Okay, the good news is that this engine is a free wheeling engine which means you most likely did no damage to the valves.

Just replacing the timing should is what needs to be done.

Roy

1. Install crankshaft timing pulley.
A. Align the pulley set key with the key groove of the pulley.
B. Slide on the timing pulley facing the flange side inward.

NOTICE: Do not scratch the sensor part of the crankshaft timing pulley.

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c. Install the timing belt plate with the bolt.

Torque: 8.0 Nm (71 inch lbs.)

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2. Install idler pulley.
A. Apply adhesive to 2 or 3 threads of the pivot bolt.

Adhesive: Part No. 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent

b. Using a 10 mm hexagon wrench, install the plate washer and pulley with the pivot bolt.

Torque: 35 Nm (26 ft. Lbs.)

c. Check that the pulley bracket moves smoothly.

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3. Temporarily install timing belt.

NOTICE: The engine should be cold.

A. Use the crankshaft pulley bolt to turn the crankshaft, and align the dot mark on the crankshaft timing pulley and the timing mark on the oil pump body.
B. Remove any oil or water on the crankshaft timing pulley and idler pulley, and keep them clean.

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c. Install the timing belt on the crankshaft timing pulley and idler pulley.

HINT: When reusing timing belt:
Align the matchmarks of the crankshaft timing pulley and timing belt, and install the belt with the arrow pointing in the direction of engine revolution.

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4. Install timing belt guide.
Install the guide, facing the cup side outward.
5. Install No.1 timing belt cover
a. Install the gasket to the timing belt cover.
B. Install the timing belt cover with the 5 bolts.

Torque: 8.0 Nm (71 inch lbs.)

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6. Install crankshaft pulley.
A. Align the pulley set key with the key groove of the pulley, and slide on the pulley.
Check that the sub timing mark (60° mark BTDC) of the crankshaft pulley is aligned with the timing mark "0" of the No.1 timing belt cover.

HINT: At this time, the crankshaft pulley set key groove and the timing mark (TDC mark) of the crankshaft pulley are as shown the illustration.

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c. Temporarily install the pulley bolt.
7. Install VVT-i (Intake Camshaft Timing)pulley.
A. Align the camshaft knock pin with the VVT-i pulley, a push the VVT-i pulley by hand until you feel it touch the bottom.

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b. Check that the outer circumference of the VVT-i pulley easily rotates through 30.

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c. Holding the hexagon portion of the camshaft with a wrench.
D. Using a 10 mm hexagon wrench, and the set bolt.

Torque: 81 Nm (60 ft. Lbs.)

Using a 14 mm hexagon wrench, install the straight screw plug with the seal washer to the set bolt.

Torque: 15 Nm (11 ft. Lbs.)

e. Align the dot mark on the camshaft timing pulley with the timing mark of the No.4 timing belt cover.
F. Remove the wrench.

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8. Connect No.1 oil pipe.
A. Install the union bolt to the oil control valve filter.

NOTICE: In case of touching the filter, avoid holding the mesh part and holding the frame part.

B. Install the oil pipe with 2 new gasket and the union bolt to the No.3 camshaft bearing cap.

Torque: 55 Nm (41 ft. Lbs.)

9. Install camshaft timing oil control valve.

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10. Install No.1 cylinder head cover.
A. Install the cylinder head and gasket with the 6 bolts and 2 nuts.

Torque: 8.5 Nm (75 inch lbs.)

b. Install the high-tension cords and clamps with the 2 bolts.

Torque: 8.0 Nm (71 inch lbs.)

c. Using a 5 mm hexagon wrench, install the engine wire protector with the bolt and nut.
11. Install throttle body and intake air connector assembly.

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12. Install exhaust camshaft timing pulley.
A. Align the camshaft knock pin with the groove on the pulley, and slide on the timing pulley.
B. Slide the timing pulley on the camshaft, facing the front mark forward.
C. Using Special Service Tool (SST), install the pulley bolt.
SST 09960-10010 (09962 - 01000, 09963 - 01000)

Torque: 81 Nm (60 ft. Lbs.)

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d. Using SST, align the dot mark on the camshaft timing timing pulley with the timing mark of the No.4 timing belt cover.
SST 09960-10010 (09962-01000, 09963-01000)

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13. Connect timing belt to camshaft timing pulleys.

HINT: When re-using timing belt:
Check that the matchmarks on the timing belt matches the end of the No.1 timing belt cover.
If the matchmarks does not align, shift the meshing of the timing belt and crankshaft timing pulley until they align.
Align the matchmarks of the timing belt and camshaft timing pulleys.

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a. Remove any oil or water on the camshaft timing pulley, and keep it clean.
B. Install the timing belt, checking the tension between the crankshaft timing pulley and intake camshaft timing pulley.

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14. Set timing belt tensioner.
A. Using a press, slowly press in the push rod using 981 - 9,807 Nm (100 - 1,000 kgf, 220 - 2,205 lbs.) Of force.
B. Align the holes of the push rod and housing, pass a 1.5 mm hexagon wrench through the holes to keep the push rod retracted.
C. Release the press.

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d. Install the dust boot onto the tensioner.

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15. Install timing belt tensioner.
A. Temporarily install the tensioner with the 2 bolts.
B. Alternately tighten the 2 bolts.

Torque: 27 Nm (20 ft. Lbs.)

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c. Remove the 1.5 mm hexagon wrench from the tensioner with pliers.

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16. Check valve timing.
A. Slowly turn the crankshaft pulley 2 revolutions from TDC to TDC.

NOTICE: Always turn the crankshaft clockwise.

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b. 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.

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17. Tighten crankshaft pulley bolt.
Using SST, install the pulley bolt.
SST 09213-70010, 09330-00021

Torque: 330 Nm (243 ft. Lbs.)

18. Install drive belt tensioner.
Install the tensioner with the 3 bolts.

Torque: 21 Nm (15 ft. Lbs.)

NOTICE: Be careful not to drop the bolts inside the timing belt cover.

19. Install No.2 timing belt cover.
A. Install the gasket on the timing belt cover.
B. Using a 5 mm hexagon wrench, install the timing belt cover with the 3 bolts.

Torque: 8.0 Nm (71 inch lbs.)

imageOpen In New TabZoom/Print

20. Install No.3 timing belt cover.
A. Install the gasket on the timing belt cover.
B. Using a 5 mm hexagon wrench, install the timing belt cover with the 4 bolts.

Torque: 8.0 Nm (71 inch lbs.)

c. Install the oil filler cap.
21. Install PS pump and front bracket.
A. Temporarily install the vane pump to the bracket.
B. Install the plate washer and front bracket with the 3 bolts.

Torque:
58 Nm (43 ft. Lbs.) For A bolts
52 Nm (38 ft. Lbs.) For B bolt

22. Install drive belt.
23. Install radiator assembly.
24. Fill engine with coolant.
25. Start engine check for leaks.
26. Install engine under cover.
27. Road test.
Check for abnormal noise, shock, slippage, correct shift points and smooth operation.
28. Recheck engine coolant level.
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Thursday, May 14th, 2020 AT 7:39 AM
Tiny
CHRISTA DICKSON
  • MEMBER
  • 138 POSTS
One question I have is that the car was not at TDC when it broke so when pitting it back on do I need to make sure that it is in the exact same location as when it broke or do I need to turn everything to be at TDC? I'm pretty sure you are going to say to turn them to dtc but I just want to be sure. Thanks.
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Friday, May 15th, 2020 AT 7:15 AM
Tiny
ASEMASTER6371
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It all needs to be set up at TDC on the crank and the cam marks in the correct position.

If the marks are not aligned, it either will not run or run very poorly.

Roy
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Friday, May 15th, 2020 AT 7:20 AM
Tiny
CHRISTA DICKSON
  • MEMBER
  • 138 POSTS
Okay. Got it, thanks. I can't get the crank pulley bolt off and can't find the tool to keep it from spinning anywhere. I have gone to a few; O'riellys, AutoZone and Advance Auto Parts no one has it. I would hate to have to go to Lexus and spend $100.00 for a tool I will use once. Any other way to get it off?
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Sunday, May 17th, 2020 AT 2:39 AM
Tiny
ASEMASTER6371
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You will need an air gun or a strong electric gun that can release a bolt that has the torque of about 200 pounds.

You should be able to rent the electric gun at a parts store.

Roy
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Sunday, May 17th, 2020 AT 2:59 AM
Tiny
CHRISTA DICKSON
  • MEMBER
  • 138 POSTS
Okay, got it. Unsure on the one gear. Can someone please tell me in simple terms how to adjust this part to TDC? It takes a 14 mm hex right? Is that the only way to adjust it? I have attached a video to be clear.
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Monday, May 18th, 2020 AT 8:07 AM
Tiny
CHRISTA DICKSON
  • MEMBER
  • 138 POSTS
Sorry, it didn't finish uploading. Here's the video of what I'm referring too:
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Monday, May 18th, 2020 AT 8:11 AM
Tiny
ASEMASTER6371
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Okay, yes, it is a hex. 14mm is the size. Parts stores should have them. They may be in a socket kit of just hex sockets. The set should only cost you about $20.00.

Turn it clockwise when you turn the cam gear.

Roy
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Monday, May 18th, 2020 AT 8:37 AM
Tiny
CHRISTA DICKSON
  • MEMBER
  • 138 POSTS
Okay great, thanks. I got one but to go out there and get it done.
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Monday, May 18th, 2020 AT 11:37 AM
Tiny
ASEMASTER6371
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You are welcome.

Always glad to help.

Roy
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Monday, May 18th, 2020 AT 11:41 AM
Tiny
CHRISTA DICKSON
  • MEMBER
  • 138 POSTS
Okay, ran into issue that's worrying me. I'm trying to rotate the crank 2 revolutions to make sure timing is correct everything looked good and right but the crank will only go maybe half a turn clockwise then it stops. Is there anything else I need to check?
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Monday, May 18th, 2020 AT 3:23 PM
Tiny
ASEMASTER6371
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Okay, take a breathe.

Remove the spark plugs and see if it turns. There may be fluid or fuel in the cylinders from trying to start it.

Roy
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Monday, May 18th, 2020 AT 3:36 PM
Tiny
CHRISTA DICKSON
  • MEMBER
  • 138 POSTS
I didn't try to start it. When the belt broke I left it alone I haven't tried to start it at all since that happen.
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Monday, May 18th, 2020 AT 5:06 PM
Tiny
ASEMASTER6371
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Okay, did you remove the plugs as I suggested and try to turn it?

Roy
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Monday, May 18th, 2020 AT 5:20 PM
Tiny
CHRISTA DICKSON
  • MEMBER
  • 138 POSTS
Yes, I did. No difference still stops in same spot.
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Monday, May 18th, 2020 AT 8:16 PM
Tiny
ASEMASTER6371
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Okay, then it sounds like it bent a valve when this happened. Remove the valve covers and inspect the valves. You should see one that is partially down and not at the same height as the rest.

Roy
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Tuesday, May 19th, 2020 AT 3:30 AM

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