Question about 1987 BMW L6

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How to replace crankshaft seal on 1987 bmwl6 - 1987 BMW L6

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Is it the front or rear seal?
if its the front do not need to take engine out, if its the rear take engine out

Posted on Apr 16, 2015

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You might want to look into a nice repair manual for your car like one from bentley publishers.

Posted on Apr 14, 2015

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How do I replace front crankshaft seal on a 2005 Chevy aveo


Chiltons repair book any library or buy it at auto store

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On a 1998 Chrysler Cirrus does the transmission have to be removed for the front seal to be replaced?


No, that would be for the rear crankshaft main seal, if it had to be replaced. The front crankshaft seal will be behind the front crankshaft pulley, usually in the timing belt cover.

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How to replace front crankshaft seal on 2005 chevy aveo


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I was told I have to replace the crankshaft seal and oil pan gasket on my 2000 chevy malibu and will cost approx. $380.00. Also is the rear main seal the same thing as the crankshaft seal??? Thanks!


Well sometimes.... the front crankshaft seal is usually called a crank seal, or the front timing cover seal but the rear crank seal is (usually) called the Rear Main crank seal. In order to replace the rear seal , the transmission will need to be removed. If its the front, then the harmonic balancer will be removed. $380 sounds cheap. As you will need a oil seal, oil pan gasket, oil, filter, labor and tax. Maybe even a lower engine mount.

Feb 01, 2011 | Chevrolet Malibu Cars & Trucks

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Need to replace the crankshaft position sensor


REMOVAL & INSTALLATION
  1. Disconnect the negative battery cable.
  2. Remove the serpentine drive belt from the crankshaft pulley.
  3. Raise and safely support the vehicle.
  4. Remove the right front wheel and tire assembly and the right inner fender access cover/splash shield.
  5. Using a 28mm socket, remove the crankshaft harmonic balancer retaining bolt.
  6. Remove the crankshaft balancer, using a puller if necessary.
  7. For 1992-99 vehicles, remove the CKP sensor shield. Fig. 1: If so equipped, remove the crankshaft position sensor shield 89634g95.gif

  8. Unplug the sensor electrical connector.
  9. For 1987-91 vehicles, perform the following:
    1. Remove the sensor and pedestal from the block face.
    2. Remove the sensor from the pedestal.
  10. For 1992-99 vehicles, remove the sensor from the block face. To install:
    1. For 1987-91 vehicles, perform the following:
    2. Loosely install the crankshaft sensor on the pedestal.
    3. Position the sensor, with the pedestal attached, on crankshaft sensor installation tool J 37089 or equivalent.
    4. Install the bolt to hold the pedestal to the block face, then tighten to 14-28 ft. lbs. (20-40 Nm). Fig. 2: Position the crankshaft sensor tool on the crankshaft 89634g76.gif
      Fig. 3: Insert the crankshaft sensor tool into the harmonic balancer 89634g75.gif

    5. Tighten the pedestal pinch bolt to 30-35 inch lbs. (3-4 Nm).
    6. Remove the special tool.
    7. Place the crankshaft sensor tool on the crankshaft balancer and turn. If any vane on the harmonic balancer touches the tool, replace the balancer.
  11. For 1992-99 vehicles, install the CKP sensor on the block.
    1. Install the retaining bolts and tighten to 14-28 ft. lbs. (20-40 Nm).
    2. Install the crankshaft position sensor shield.
    3. Attach the sensor electrical connector.
  12. Install the balancer on the crankshaft.
  13. Tighten the crankshaft bolt to 200-239 ft. lbs. (270-325 Nm) for 1987-91 vehicles. For 1992-99 vehicles, tighten to 110 ft. lbs. (150 Nm), plus an additional 76°rotation.
  14. Install the inner fender shield and the right tire and wheel assembly.
  15. Carefully lower the vehicle.
  16. Install the serpentine belt.
  17. Connect the negative battery cable.
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Oct 29, 2010 | 1999 Oldsmobile 88

1 Answer

Rear barring an seal replaced


I'm not sure if this is the right part of your car but, are you talking about the rear seal on the engine for the crankshaft?

If so:

Rear Main Oil Seal REMOVAL & INSTALLATION Fig. 1: Rear main seal installation for the 2.3L and 2.5L engines 85553306.gif
Fig. 2: Removing the rear main seal 85553307.gif
Fig. 3: Installing the rear main seal on the 2.9L engines 85553308.gif
If the crankshaft rear oil seal replacement is the only operation being performed, it can be done in the vehicle as detailed in the following procedure. If the oil seal is being replaced in conjunction with a rear main bearing replacement, the engine must be removed from the vehicle and installed on a work stand.
  1. Remove the starter.
  2. Remove the transmission from the vehicle, following the procedures in Section 7.
  3. On a manual shift transmission, remove the pressure plate and cover assembly and the clutch disc following the procedure in Section 7.
  4. Remove the flywheel attaching bolts and remove the flywheel and engine rear cover plate.
  5. Use an awl to punch two holes in the crankshaft rear oil seal. Punch the holes on opposite sides of the crankshaft and just above the bearing cap to cylinder block split line. Install a sheet metal screw in each hole. Use two large screwdrivers or small pry bars and pry against both screws at the same time to remove the crankshaft rear oil seal. It may be necessary to place small blocks of wood against the cylinder block to provide a fulcrum point for the pry bars. Use caution throughout this procedure to avoid scratching or otherwise damaging the crankshaft oil seal surface. To install:
  6. Clean the oil seal recess in the cylinder block and main bearing cap.
  7. Clean, inspect and polish the rear oil seal rubbing surface on the crankshaft. Coat a new oil seal and the crankshaft with a light film of engine oil. Start the seal in the recess with the seal lip facing forward and install it with a seal driver. Keep the tool, T82L-6701-A (4-cyl. engines) or T72C-6165 (6-cyl. engine) straight with the centerline of the crankshaft and install the seal until the tool contacts the cylinder block surface. Remove the tool and inspect the seal to be sure it was not damaged during installation.
  8. Install the engine rear cover plate. Position the flywheel on the crankshaft flange. Coat the threads of the flywheel attaching bolts with oil-resistant sealer and install the bolts. Tighten the bolts in sequence across from each other to the specifications listed in the torque chart in this section.
  9. On a manual shift transmission, install the clutch disc and the pressure plate assembly following the procedure in Section 7.
  10. Install the transmission, following the procedure in Section 7.
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Oct 07, 2010 | 1994 Ford Explorer Limited

1 Answer

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When I did mine I removed the belts, removed the harmonic Balancer and used a seal puller to pull the seal out and then pressed the new seal in.

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