Question about 1999 Mercury Cougar

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I have a 99 cougar 2.5 i have the valve covers off and its tdc how can i tell if its jumped time wheres the marks point

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It is on the balincing wheel on the front of the engine ther will be a v groov in the wheel. you will have to pull no1 spark plug to deterrmin TDCwhen no one is at the top of its travel before the intake valve opens you are at TDC when that happens the timeing mark should be lined up with the mark on the frame. If you are not familure with this procedure go to sn suto psartd store and get a book on you car. if you think you have jumped time check the distributor to se if the rotor when you are TDS is pointing to no1 to fire the spark plug.

Posted on Jul 21, 2009


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HOWEVER, the crank makes 2 turns to every 1 turn of the camshaft so you hit TDC twice. To make sure that you are right you must remove the valve cover and watch the valves as you turn the engine. The proper thing to see is the intake valve ( farthest from the exhaust manifold) open and starting to close as you come up on TDC. As you go past TDC the exhaust valve (closest to the manifold) will start to open. If this is not what you see turn the engine over 1 complete turn to line up the timing marks again. At this point, where the rotor button points is #1 spark plug.

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