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Hi i change my2005 lexus gx470 timing belt and the engine light come on after what is the cause

I also changed the cam shaft seal i notice the cam shaft marks desnt go with the cam sprockets

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: CAM SHAFT MARKS 2002 SATURN VUE 3.0L

This is a pretty tough timing belt job to do if you have never done one before. There is also a kit of tools that are essential to getting the timing right on this engine. The cams are numbered 1-2-3-4 from left to right if you are facing the cam sprockets. If the tensioner was broken and the engine came out of time you are probably looking at at least a few bent valves. Could be time well spent to perform a leakdown test before you spend too much time on installing a timing belt.

Posted on Dec 16, 2008

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SOURCE: NEED TO KNOW TIMING MARKS ON 84 S-10 2.8

the timing is set to 8 degrees at 700 rpm...if it helps any

Posted on Aug 07, 2009

john631068
  • 172 Answers

SOURCE: Timing marks on 1999 Ford Ranger 2.5L.

Rotate the engine so that No. 1 cylinder is at TDC on the compression stroke. Check that the timing marks are aligned on the camshaft and crankshaft pulleys. An access plug is provided in the cam belt cover so that the camshaft timing can be checked without removal of the cover or any other parts. Set the crankshaft to TDC by aligning the timing mark on the crank pulley with the TDC mark on the belt cover. Look through the access hole in the belt cover to make sure that the timing mark on the cam drive sprocket is lined up with the pointer on the inner belt cover.

  1. Loosen the alternator retaining bolts and remove the drive belt from the pulleys. Remove the water pump pulley.
  2. Loosen and position the power steering pump mounting bracket and position it aside.
  3. Remove the four timing belt outer cover retaining bolts and remove the cover. Remove the crankshaft pulley and belt guide.
  4. Loosen the belt tensioner pulley assembly, then position a camshaft belt adjuster tool (T74P-6254-A or equivalent) on the tension spring rollpin and retract the belt tensioner away from the timing belt. Tighten the adjustment bolt to lock the tensioner in the retracted position.
  5. Remove the timing belt.

To install:
  1. Install the new belt over the crankshaft sprocket and then counterclockwise over the auxiliary and camshaft sprockets, making sure the lugs on the belt properly engage the sprocket teeth on the pulleys. Be careful not to rotate the pulleys when installing the belt.
  2. Release the timing belt tensioner pulley, allowing the tensioner to take up the belt slack. If the spring does not have enough tension to move the roller against the belt (belt hangs loose), it might be necessary to manually push the roller against the belt and tighten the bolt.

The spring cannot be used to set belt tension; a wrench must be used on the tensioner assembly.
  1. Rotate the crankshaft two complete turns by hand (in the normal direction of rotation) to remove the slack from the belt, then tighten the tensioner adjustment and pivot bolts to specifications. Refer to the necessary illustrations. Make sure the belt is seated properly on the pulleys and that the timing marks are still in alignment when No. 1 cylinder is again at TDC/compression.
  2. Install the crankshaft pulley and belt guide.
  3. Install the timing belt cover.
  4. Install the water pump pulley and fan blades. Install upper radiator hose if necessary. Refill the cooling system.
  5. Position the alternator and drive belts, then adjust and tighten it to specifications.
  6. Start the engine and check the ignition timing. Adjust the timing, if necessary.

Posted on Nov 25, 2009

  • 28 Answers

SOURCE: timing marks on 1999 chevy cavilier 2.2.I'm

The Cam Gear has a hole it it. That what GM uses for a mark.. Gotta love them young engineers at GM for improving an age old way of just putting a diamond mark on tooth instead. LOL

Posted on May 05, 2010

  • 1 Answer

SOURCE: i need to know how to set up the valve timing

I refer to a question asked on 15 April re timing marks but I am looking for info on the same marks on a VolvoS40 2litre Non Turbo
1997. Does this kit you talk about apply to this as well. If so where can I get it. I live in cape town south africa

Posted on May 13, 2010

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Is that the noise you mean? Rough and loud? Yeah, it makes you wonder if the timing is off by a tooth or two, doesn't it?
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The recommended interval although not posted in the owners manual for the "original" belt is 60,000 miles. There are new replacement OEM / after-market timing belts that you can purchase that have a recommended replacement interval of 90,000 miles. If you are not the original owner and do not know the history of the past engine maintenance, I would at least inspect the installed belt for cracks, traces of oil, missing teeth, and tension. If any of the previouslymentioned problems are noted have the belt replaced. If there is oil on the belt make sure that both the cam and crank shaft seals are replaced when the timing belt is changed. Seals are cheap...!!!! Timing belt changes are expensive and an oil leak will substantially shorten the life of a timing belt.

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