Question about Nissan Cars & Trucks
There are a number of ways. If it is a petrol engine, remove the number 1 spark plug, on a diesel remove the no. 1 injector (ouch). Place a straight sturdy wire (welding rod or cut off the long end of a wire clothes hanger) and gently push it down the cylinder. Have someone slowly turn the engine by hand using a socket on the front engine pulley while feeling the wire as it moves up out of the plug / injector hole. Never try doing this trick by turning the starter motor, it will end in disaster.
When the piston reaches top dead center, the wire will stop moving. There will be a slight movement of the crankshaft of about 10 to 15 degrees where it is difficult to feel any movement at all, so find the position half-way between where the wire stops moving up and starts moving down. This halfway position is top dead center.
At this point you should see a mark on the front engine pulley lining up with a pin or small plate on the engine block.
Otherwise, there will be a mark (a line) on the flywheel which should line up with a mark on the bell housing which you should be able to see through an inspection hole in the bell housing. Use a flashlight to see these marks line up.
Be careful, however. On a 4 cylinder engine either 1 and 4 (firing order 1-3-4-3) or 1 and 2 cylinders (firing order 1-3-2-4) are at TDC at the same time. It is too much of a hassle to mention all the engine types, just check the firing order and divide the number of cylinders by 2, the first half starts off with no 1 and whatever the number the second half starts off with, those two are at TDC at the same time.
Posted on Dec 15, 2014
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Posted on Jan 02, 2017
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Align the punch mark with the oil hole before oil pump installation-2.4L engine
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Oil pump exploded view-2.4L engine
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Before servicing the vehicle, refer to the Precautions Section.
Set the engine to Top Dead Center (TDC) of the compression stroke for the No. 1 cylinder.
Remove or disconnect the following:
Engine under cover
Oil pump and drive spindle
Fill the pump housing with engine oil, then align the punch mark on the spindle with the hole in the oil pump as shown.
Install or connect the following:
Oil pump and drive spindle. Tighten the mounting bolts to 96-132 inch lbs. (11-15 Nm).reverse procedure on other componets Start the engine and check for leaks.Check the ignition timing and adjust, as necessary.
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