Question about Infiniti Q45

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My timing chain tensioner was loose, however i kept driving my car cause i had important errands to run.When I parked it to go in the store and came back out and started it up again it wouldn't. Lights came on, and the horn works. But it won't turn over. AAA said it was the starter, but it seems as though this problem only occured after i kept driving with the tensoner being loose. Is there corrulation btwn the two parts that would cause the starter to just stop working?

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If the tensioner was loose and the chain had jumped a slot, you would have a hard time even starting the car if it even start at all. It would crank and everything but just would not start. The starter has no correlation with the tensioner. A bad starter will either do nothing, or it would clunk and not turn over.

Posted on May 24, 2011

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I would like to have a diagram of the timing comfiguration of a 2002 dodge intrepid 2.7 .....i am very interested in the timining marks for the camshafts


Hi, this engine uses plated links in the chain to match marks on the gears. See figure and installation procedure below. Let me know if you have any questions and thanks for using FixYa.

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    1. Install the timing chain by performing the following procedure:
    1. Verify that the crankshaft sprocket timing mark is aligned with the mark on the oil pump housing.
    2. Place the left side primary timing chain sprocket onto the chain, while aligning the timing mark on the sprocket to the 2 plated links on the chain.
    3. Lower the chain with the left sprocket through the left cylinder head opening.
    4. Loosely position the left camshaft sprocket over the camshaft hub.
    5. Align the plated link to the crankshaft sprocket timing mark.
    6. Position the timing chain around the water pump drive sprocket.
    7. Align the right camshaft sprocket timing mark to the plated link on the timing chain and loosely position the sprocket over the camshaft hub.
    8. Verify that all the plated links are aligned to their proper timing marks.
    1. Install the left lower timing chain guide and tensioner. Torque the bolts to 21 ft. lbs. (28 Nm).
      NOTE Inspect the timing chain guide access plug O-rings before installing. Replace damaged O-rings as necessary.
    2. Install the timing chain guide access plug to the left cylinder head and torque to 15 ft. lbs. (20 Nm).
      NOTE To reset the timing chain tensioner, oil will first need to be purged from the tensioner.
    1. Purge oil from the timing chain tensioner using the following procedure:
    1. Remove the tensioner from the tensioner housing.
    2. Place the check ball end of the tensioner into the shallow end of the Tensioner Resetting Special tool 8186.
    3. Using hand pressure, slowly depress the tensioner until oil is purged from the cylinder.
    4. Reinstall the tensioner into the tensioner housing.
    1. Reset the timing chain tensioner using the following procedure:
    1. Position the cylinder plunger into the deeper side of the Tensioner Resetting special tool 8186. Apply a downward force until the tensioner is reset.

    WARNING

    Ensure that the tensioner is properly reset. The tensioner body must be bottomed against the top edge of the Tensioner Resetting Special tool 8186. Failure to properly perform the resetting procedure may cause tensioner jamming.

    1. Install the chain tensioner into the right cylinder head.
    2. At the right cylinder head, insert a 3 / 8 in. square drive extension with a breaker bar into the intake camshaft drive hub. Rotate the camshaft until the camshaft hub aligns with the camshaft sprocket and damper attaching holes. Install the sprocket attaching bolts and torque to 21 ft. lbs. (28 Nm).
    3. Turn the left camshaft by inserting a 3 / 8 in. square drive extension with a breaker bar into the intake camshaft drive hub. Rotate the camshaft until the camshaft hub aligns with the camshaft sprocket and damper attaching holes. Install the sprocket attaching bolts and torque to 21 ft. lbs. (28 Nm).
    4. If necessary, rotate the engine slightly clockwise to remove any slack in the timing chain.
    5. To arm the timing chain tensioner: Use a flat-bladed prytool to gently pry the tensioner arm towards the tensioner slightly. Then, release the tensioner arm. Verify the tensioner extends.
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    7. Apply a 1 / 8 in. (3mm) bead of sealer at the parting line of the oil pan and engine block.
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    Accessory drive belt tensioner pulley


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    I have a 99 dodge intrepid that threw a rod and my father-in-law and I have been trying to time the car for a year now. We get number one piston up but the mark on the oil pump doesnt line up with the mark...


    I'm not sure what you may be "doing wrong", but here is the manufacturer procedure for aligning the timing marks.
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    ^Refer to this diagram during step 12.
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    ^Refer to this diagram during step 13.
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    ^Refer to this diagram for step 19.

    1. Align crankshaft sprocket timing mark to the mark on oil pump housing. NOTE: Lubricate timing chain and guides with engine oil before installation.
    2. Place left side primary chain sprocket onto the chain so that the timing mark is located in-between the two (plated) timing links.
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    5. Align timing (plated) link to the crankshaft sprocket timing mark.
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    10. Install chain guide access plug to left side cylinder head. Tighten plug to 20 Nm (15 ft. lbs.)
    11. NOTE:
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    12. Purge oil from timing chain tensioner using the following procedure:
    a) Place the check ball end of tensioner into the shallow end of Special Tool 8186.
    b) Using hand pressure, slowly depress tensioner until oil is purged from tensioner.
    13. Reset timing chain tensioner using the following procedure:
    a) Position cylinder plunger into the deeper end of Special Tool 8186.
    b) Apply a downward force until tensioner is reset. NOTE: If oil was not first purged from the tensioner, use slight finger pressure to assist the center arm pin of Special Tool 8186 to unseat the tensioner's check ball. CAUTION: Ensure the tensioner is properly reset. The tensioner body must bottom against the top edge of Special Tool 8186. Failure to properly perform the resetting procedure may cause tensioner jamming.
    14. Install the reset chain tensioner into the right cylinder head.
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    Hope this helps!
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    Timing chain


    I'll assume you are going to replace the entire set (sprockets, guides, etc.) which I got from O'Reilly for $79.

    First, set engine to #1 TDC.
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    Remove harmonic balance using correct puller (can be rented from local auto parts store). Remove P/S pump and A/C compressor if necessary. Remove timing cover.

    IMPORTANT: Before removing oil thrower and distributor drive gear, note direction of oil thrower.
    Remove oil thrower and distributor drive gear.
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    Install chain guides, being sure not to let tensioner pop out.

    !!! IMPORTANT: The tensioner must be fully compressed. To accomplish this, loosen the 8mm bolts in the passenger side guide (the shorter one). Compress the tensioner, adjust guide to remove slack, and tighten the two 8mm bolts.
    Double check that everything is still lined up properly, and make corrections as necessary.
    Install distributor drive gear and oil thrower.

    !!! IMPORTANT: Ensure oil thrower is installed facing away from the distributor gear. If not, it could get caught in the distributor gear and destroy the two gears or cause engine lockup.

    Before installing timing cover, inspect coolant and oil passages. If there is excessive buildup, a good system cleaner is recommended. Replace timing cover gaskets to prevent oil leakage. The best way to reinstall the timing cover is to remove the oil pan, install the timing cover, and reinstall the oil pan (replacing the pan gasket). If you don't want to do that, simply grease the top and bottom of the timing cover and lightly tap it into place with a rubber mallet. This is to prevent damage to the oil pan and head gaskets.
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    !!! IMPORTANT: Failure to replace oil pump gasket could lead to inadequate oil pressure, which will cause severe engine damage.

    The remainder of the installation is a reverse of removal, using new gaskets where necessary. Before installing your valve cover is a good time to check your rocker arm clearances. This is also a good time to replace your drivebelt, and any other maintenance items as necessary.

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