Question about 1998 Nissan Altima

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What tools do I need to tighten the bolts on a loose muffler?

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  • Nissan Master
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Gpcella: with no disrespect intended, depending on what you have determined to be the muffler under the car, will dictate the wrench sizes.
Typically the catalytic converter bolts are 17 mm.
The bolts holding the other pipe sections could have two possible wrench sizes. 14 mm and 12 mm. In most cases, you will need two of the 14 and 12 mm sizes because they are a nut and bolt design.
It would be advisable to have WD-40 or a similar product to help free up the corrosion which often is found on exhaust bolts.
The pipe to catalytic converter will have a gasket, Make sure you have one if you plan to remove the pipe.
CAUTION!!!! If you find that the bolts are seized: spray the penetrating oil on the bolts, let them sit for a few minutes and try again. However, when you try, rock the wrenches back and forth like you are trying to loosen it and tighten them. This way, you are less likely to snap the bolt. A gentle rocking usually will break the nut and bolt free.

Posted on Jul 28, 2009

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  1. NOTE: Make sure the correct (second) notch in the pulley is indexed to the lower cylinder block (6010).
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2.Remove the bolt and install the top dead center timing peg
3 Rotate the crankshaft clockwise against the peg.
5332a96.gif NOTE: Installation of the alignment tool into the exhaust camshaft (6250) may require the camshaft to be rotated clockwise.
Install the Camshaft Alignment Timing Tool on the back of the camshafts. 9e76853.gif
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  2. f7eb1fd.gif
    1. Install a new exhaust sprocket O-ring into the exhaust sprocket.
    1. Install the exhaust camshaft sprocket. Make sure that the tab on the sprocket engages the hole previously positioned at 12 o'clock in the oil control solenoid bushing.
      • Loosely install the bolt.
      • 73bc433.gif
    1. Loosely install the timing chain tensioner.
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    2. 9406c65.gifEngage the timing belt tensioner tab into the upper timing cover backplate. a1cb4c6.gif
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    809c9dc.gif
    1. sxf~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: The camshaft must be held stationary with an open-end wrench. Do not use the alignment tool to hold the camshaft in position or damage to the camshaft may occur.
      Tighten the bolt on the intake camshaft sprocket.
    2. 25f34cb.gif
    1. sxf~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: The camshaft must be held stationary with an open-end wrench. Do not use the alignment tool to hold the camshaft in position or damage to the camshaft may occur.
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      • 24c43e7.gif
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    1. NOTE: Make sure the correct (second) notch in the pulley is indexed to the lower cylinder block.
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      1. Install the bolt. 5332a96.gif

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