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  1. #1

    4 Tec Timing chain setup

    I am rebuilding a 2004 4 tec and have the cam locked and the crank locked at TDC with the locking tools. I install the camshaft sprocket
    and can not get the timing marks "1503" parallel with the top of the head. One tooth either direction is way off.
    The chain tensioners only make a small difference and the marks are still off with them installed.

    What do I do, turn the crank until the cam lines are parallel and then lock down the the cam.
    The crank is around 2 to 3 degrees clockwise when the lines line up.

    The picture is with crank and cam locked.
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  2. #2
    Sanfish's Avatar
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    Looks good to me. With the chain tensioner out (or in for that matter), the marks won't be perfectly parallel.

    Here is mine:
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  3. #3
    Forget trying to get the marks level, that is not what they are there for. They are there to get you in the general area. It is only important to have the two locks in place and tensioner tight.

    However, if you can install it in two spots, then one will allow you to insert the cam bolts easily, and the other will bind slightly. Use the one that fits in easily and call it a day.

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  5. #4
    I kind of figured that it isnt really precision with those slots in the sprocket.
    I have rebuilt a lot of motors but never have seen slots in a cam sprocket like that.


    THanks

  6. #5

  7. #6
    SLASHER's Avatar
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    As Sandfish is , the best u will get it ..

  8. #7
    Bob 1tommygunner1927's Avatar
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    Quote Originally Posted by buda View Post
    I am rebuilding a 2004 4 tec and have the cam locked and the crank locked at TDC with the locking tools. I install the camshaft sprocket
    and can not get the timing marks "1503" parallel with the top of the head. One tooth either direction is way off.
    The chain tensioners only make a small difference and the marks are still off with them installed.

    What do I do, turn the crank until the cam lines are parallel and then lock down the the cam.
    The crank is around 2 to 3 degrees clockwise when the lines line up.

    The picture is with crank and cam locked.

    Setting the cam to crank timing is made easier when the rocker arm assembly IS NOT installed, as pictured in post 2.
    Last edited by 1tommygunner1927; 09-19-2016 at 12:17 PM.

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