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99 grand am-replacing crankshaft pulley


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giorgio66613
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Jun 1, 2012, 3:38 PM

Post #1 of 6 (4194 views)
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99 grand am-replacing crankshaft pulley Sign In

99 Pontiac Grand Am not sure mileage....gonna be replacing crankshaft pulley on a 99 grand am...the pulley came off the inner ring which mounts to the crank itself...was wondering what i needa know...any special tools i should have and the steps. thanks.


Hammer Time
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Jun 1, 2012, 3:40 PM

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Re: 99 grand am-replacing crankshaft pulley [In reply to] Sign In

Yes, you're going to need a puller and something really strong to get the center bolt out.




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giorgio66613
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Jun 1, 2012, 4:23 PM

Post #3 of 6 (4160 views)
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Re: 99 grand am-replacing crankshaft pulley [In reply to] Sign In

ive got an air impact....so should i worry about the crank rotating? do i need to keep it from doing that? do u have a quick list of procedure? i pulled tire off and took splash guard off and i can access it pretty well. should i drop the engine a bit?


Tom Greenleaf
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Jun 1, 2012, 8:09 PM

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Re: 99 grand am-replacing crankshaft pulley [In reply to] Sign In

If you have a nice straight line shot thru the wheel well and a STRONG impact wrench that is a good start. With impact wrench engine should not just turn engine but just brute force would.

Try to make sure as best you can if there's room for the remainder of that damper to come off without any tricks like moving the engine. Wish I could say if that exact car will or wont but no software to help me help you so if no other knowns from the crew here use your judgement,

T
_________________________________________
Long retired now


Discretesignals
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Jun 1, 2012, 8:53 PM

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Re: 99 grand am-replacing crankshaft pulley [In reply to] Sign In

Not only do you need the harmonic balancer puller, but you need the installer also. Don't try beating the balancer on or using the bolt to pull the balancer on.





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nickwarner
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Jun 5, 2012, 4:54 PM

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Re: 99 grand am-replacing crankshaft pulley [In reply to] Sign In

         
Print
Removal & Installation

2.2L Engines

NOTE This procedure requires the use Special Tool No. J 38122-A Harmonic Balancer Holder, or equivalent.
  1. Remove the engine drive belt.
  2. Use the Harmonic Balancer Holder J 38122-A, or equivalent., to prevent the crankshaft from rotating while loosening the crankshaft balancer bolt.


    Fig. Use the Harmonic Balancer Holder J 38122-A, or equivalent., to prevent the crankshaft from rotating while loosening the crankshaft balancer bolt
  3. Remove the crankshaft balancer bolt. Discard the bolt.
  4. Remove the crankshaft balancer.


To install:
  1. Install the crankshaft balancer.
  2. Install a NEW crankshaft balancer bolt.
  3. Use the Harmonic Balancer Holder to prevent the crankshaft from rotating while tightening the crankshaft balancer bolt. Tighten the bolt to 74 ft. lbs. (100 Nm) plus an additional 75 degree rotation.
  4. Install the engine drive belt.

2.4L & 3.1L Engines

A crankshaft balancer holder is required along with a puller to remove and install the damper.
NOTE On the 2.4L and 3.1L engines after the balancer has been removed perform the CKP Learn Procedure.
  1. Disconnect the negative battery cable.
  2. Remove the drive belt.
  3. Raise and safely support the front of the vehicle securely on jackstands.
  4. If necessary, remove the front wheel, right splash shield and transaxle converter cover.
  5. Retain the crankshaft while loosening the crankshaft damper bolt and washer.
  6. Remove the damper (balancer) and key using a puller.


    Fig. View of a common crankshaft damper-2.4L engine shown


To install:
NOTE An automatic transaxle damper must not be used on an manual equipped engine.
  1. Lubricate the front seal and sealing surface of the damper with chassis grease.
  2. Place the balancer onto the crankshaft indexing keyway. Tap into place using a rubber or sand filled mallet.
  3. Install the bolt and washer. Use a retailing tool to keep the crankshaft from turning. Tighten the damper bolt to proper torque specifications.
    NOTE Do not use a torque angle meter to rotate the retaining bolt the additional 90°. The torque capacity of the tool will be exceeded and damage to the tool will result.
  4. On the 2.4L engine, tighten the bolt to specification while using the holding tool to prevent the crankshaft from turning. Place marks on the socket next to one to four marks on the tool. This mark will represent the zero point. Tighten the bolt by rotating the socket clockwise 90°. At the 90°, the socket indexes with the next mark on the tool.
  5. Install all remaining components.
  6. Perform the CKP Learn Procedure, using an OBD-II compliant scan tool.

3.4L Engine

NOTE This procedure requires the use of Special Tools J 24420-C Crankshaft Balancer Puller, and J 29113 Crankshaft Balancer Installer, or their equivalents.
  1. Remove the drive belt.
  2. Raise and support the vehicle.
  3. Remove the right front tire and wheel.
  4. Remove the right engine splash shield.
  5. Install a utility stand beneath the frame right side rail in order to support the frame/powertrain.
  6. Remove the two frame RIGHT side bolts.
  7. Use the utility stand to lower the frame in order to provide access to the crankshaft balancer.
    NOTE The inertial weight section of the crankshaft balancer is assembled to the hub with a rubber type material. The correct installation procedures (with the proper tool) must be followed or movement of the inertial weight section of the hub will destroy the tuning of the crankshaft balancer.
  8. Remove the crankshaft balancer retaining bolt and washer.
  9. Remove the crankshaft balancer using the Crankshaft Balancer Puller, Special Tool No. J 24420-C, or equivalent.


    Fig. Remove the crankshaft balancer using the Crankshaft Balancer Puller, Special Tool No. J 24420-C, or equivalent
  10. Clean and inspect the crankshaft balancer.


To install:
  1. Apply sealer GM P/N United States 12345739, Canadian P/N 10953541 or the equivalent to the keyway of the crankshaft balancer.
  2. Place the crankshaft balancer into position over the key in the crankshaft. Install Crankshaft Balancer Installer Special Tool No. J 29113, or equivalent onto the crankshaft.


    Fig. Place the crankshaft balancer into position over the key in the crankshaft. Install Crankshaft Balancer Installer Special Tool No. J 29113, or equivalent onto the crankshaft
  3. Pull the crankshaft balancer into position.
  4. Remove the installer tool from the crankshaft balancer.
  5. Install the crankshaft balancer washer and bolt. Tighten as follows:
    1. Step 1: Tighten to 52 ft. lbs. (70 Nm)
    2. Step 2: Tighten an additional 72 degrees

  6. Use the utility stand in order to raise the frame/powertrain.
  7. Install new frame right side bolts.
  8. Install the right engine splash shield.
  9. Install the right front tire and wheel.
  10. Lower the vehicle.
  11. Install the drive belt.





99 grand am-replacing crankshaft pulley


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