Question about 1990 Toyota Corolla

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How do i position the timing marks when replacing my cam belt

Car: toyota corolla FX-G 1990 1.5L single overhead cam.
timing belt mounted on side of engine so a big job to replace it as have to hoist engine to get cam belt round mount.

have found timing marks already but want to know what position they have to be in to get the timing right. both facing up? both facing down? any idea? cant get my hands on a workshop manual at this stage and i want to have it fixed on friday at the latest. any help would be apreciated

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  • j_quin Apr 22, 2009

    cam gears are located on the left side of my engine (looking from the front) the timing marks are just one hole in a spoke on each of the two gears (top and bottom)

    what way do the holes need to be facing? up? to the side? both towards the drivers seat?


  • carhob May 11, 2010

    on line at alldata!

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J__quin: 4-AC engine I believe we are both referring to.
Your cam gear can only fit one way and if you look at the cam gear, you will notice that there is a small hole in the gear close to the center, somewhat in between two of the large holes.
Position that small hole at the 12:00 PM and look through the hole.
You should be able to see a timing mark through the hole on the head. The mark should be dead center.
At the bottom, the crank woodruff key will be at 12:00 PM.
Also on the back side of the timing gear on the crank closest to the block, is a notch "V" which you line up with a dot on the block.
You should see the two line up with the key in the 12:00 PM position.
Put the belt on, when you set the tension, a good way to check it, is to find the longest span between the tensioner and the gear.
Take your fore finger and thumb and try to twist the belt. It shouldn't twist more than 45 degrees.
Good luck.

Posted on May 11, 2009

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How do i position the timing marks when i replace the cam chian for toyota corolla 1.4i 2006 model

Posted on Feb 08, 2010

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Posted on Jan 02, 2017

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