Question about 1990 Mercedes-Benz 300 Diesel

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Replace water pump

How do I get the tenioner loose to get the belt off. There is no bolt

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  • ezell169 Jan 09, 2009

    The front of the tensioner is smooth no place to put a ratchet

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  • 43 Answers

Stick 1/2 inch drive ratchet into the square hole in tensioner

Posted on Jan 07, 2009

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1 Answer

Replace water pump belt


remove metal cover, move tenioner to unload belt, remove tenioner and replace belt. make sure water pump and tenioner pulleys turn

Dec 12, 2013 | Cadillac Seville Cars & Trucks

1 Answer

How to change the water pump on a 2006 equinox ls


  1. Drain the cooling system until the coolant is below the level of the water pump.
  2. Loosen the water pump pulley bolts.
  3. Rotate the drive belt tensioner to release the tension on the drive belt.
  4. Remove the drive belt from the right idler pulley.
  5. Carefully release the drive belt tensioner spring tension.
  6. Remove the water pump pulley bolts.
  7. Remove the water pump pulley.
  8. Remove the water pump bolts.
  9. Remove the water pump.
  10. Remove the water pump gasket.
  11. Clean the water pump mating surfaces.

To install:

Fig. Remove the mounting bolts (3) to remove the water pump (1) and gasket (2).
  1. Install the water pump gasket (2).
  2. Install the water pump (1).
  3. Install the water pump bolts (3). Tighten the bolts to 10 Nm (89 inch lbs.).
  4. Install the water pump pulley. Loosely install the pulley bolts.
  5. Insure the drive belt is properly centered on all the pulleys except the right idler puller.
  6. Rotate the drive belt tensioner away from the drive belt.
  7. Install the drive belt to the right idler pulley.
  8. Release the tensioner allowing the drive belt tensioner to come in contact with the drive belt.
  9. Inspect the drive belt to insure the belt is properly centered on all the pulleys.
  10. Tighten the water pump pulley bolts. Tighten the bolts to 25 Nm (18 ft. lbs.).
  11. Fill the cooling system.
  12. Inspect the cooling system for leaks.


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Aug 21, 2011 | 2006 Chevrolet Equinox

1 Answer

How do you replace the water pump?


Hello, ramrodsc2 Removal Procedure 1. Drain the cooling system untilthe coolant is below the level of the water pump. 2. Remove the drive belt guard. 3.Loosenthe waterpump pulley bolts. 4. Remove the drive belt. 5. Remove the water pump pulleybolts and remove the water pump pulley. 6. Remove thewater pump bolts then Remove the water pump. 7. Remove the water pump gasket 8. Clean the water pumpmating surfaces pay particular attention to the cleaning process and make surethe surfaces are clean. Installation Procedure 1. Install the water pump gasket. 2. Install the water pump; tighten the bolts to 10 Nm (89 inchlbs.). 3. Install the water pump pulley.Loosely install the mounting bolts. 4. Install the drive belt; this will help hold the pulley thentightening the pulley bolts. 5. Tighten the bolts to 25 Nm (18 inch lbs.). 6. Install the drive beltguard. 7. Fill the cooling system. 8. Inspect the cooling system for leaks. Regards, netvan

Mar 13, 2011 | 1999 Chevrolet Venture

1 Answer

How long does it take to replace a water pump on Pontiac Aztec?


It takes near to 1.5 hours to replace the water pump on Pontiac Aztec. The procedure to replace the water pump is as follows:--- Water Pump Replacement ---------
Removal Procedure :
techmecho.gif
  1. Drain the cooling system until the coolant is below the level of the water pump.
  2. Remove the drive belt guard.
  3. Loosen the water pump pulley bolts.
  4. Remove the drive belt.
techmecho_0.gif
  1. Remove the water pump pulley bolts.
  2. Remove the water pump pulley.
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  1. Remove the water pump bolts.
  2. Remove the water pump.
  3. Remove the water pump gasket.
  4. Clean the water pump mating surfaces
Installation Procedure
  1. Install the water pump gasket.
  2. Install the water pump. Notice: Refer to Fastener Notice in Service Precautions.
  3. Install the water pump bolts.
    • Tighten the bolts to 10 Nm (89 inch lbs.) .
techmecho_2.gif
  1. Install the water pump pulley. Loosely install the mounting bolts.
  2. Install the drive belt.
  3. Install the water pump pulley bolts.
    • Tighten the bolts to 25 Nm (18 inch lbs.) .
techmecho_3.gif
  1. Install the drive belt guard.
  2. Fill the cooling system.
  3. Inspect the cooling system for leaks.
  4. That's it.

Nov 18, 2010 | 2001 Pontiac Aztek

1 Answer

How hard is it to replace water pump on the 2000 malibu


not that hard!
loose the water pump pulley bolts with the belt still on
remove the belt
remove the pulley
remove the bolts on water pump
remove the water pump

Mar 05, 2010 | 2000 Chevrolet Malibu

1 Answer

How to replace water pump


1. Drain coolant from engine.
2. Remove water pump drain plug. It is located on the front of the block just above the A/C compressor and about 2 o'clock of the crankshaft pulley.
3. Place a floor jack under engine (be sure to use a piece of wood in between jack and oil pan). Remove the right side engine mounting, mounting bracket and nuts.
4. Remove the drive belts and idler pulley bracket.
5. Remove the two black covers on the front of the engine. The one towards the radiator will have the water pump behind it and the one towards the thermo barrier will have the timing chain tenioner behind it.
6. Push in the tensioner sleeve, apply a stopper pin so it does not return ( a paper clip will work ).
7. Remove the tensioner (2 - 10mm bolts )
8. Remove the 3 water pump bolts.
9. Turn the crankshaft pulley approximately 20 degrees backwards to put slack in the chain to give clearance for the water pump.
10. Install the two M8 bolts into the threaded holes in the water pump (the upper hole and the lower hole)
11. Tighten the M8 bolts by turning half turn alternately until the water pump becomes loose. Lift up water pump and remove it. Make sure you move the timing chain away from the pump to remove it. Do not worry about engine timing. It will not effect it at all. The water pump is not part of timing the engine, nor will the chain losse contact with the crankshaft gear.
12. Make sure to use two new "O" rings on the water pump.
13. Install water pump and tighten bolts (63.4 - 85.1 inch pounds)
14. Return the crankshaft pulley to its original position by turning it 20 degrees forward.
15. Install timing chain tensioner, then remove the stopper pin ( paper clip)
16. Place sealer on the black covers and reinstall.
17. Reinstall engine mounting.
18. Reinstall drive belts.
19. Fill with new coolant.
20. Start engine and check for leaks. (Engine will be noise at first until the tensioner fills with engine oil. This is normal.)

Dec 10, 2009 | 1996 Nissan Maxima

1 Answer

Need instructions on how to replace water pump on a 1990 checvy lumina avp


The water pump is located on the right side of the engine. This is facing the car from the front. Remove the three bolts that connect the belt guard. They will need a 10mm socket or wrench.
Next, remove the belt. You can do this by reaching down under to the belt tension pully and lifting it up with a wrench. This will make the belt loose enough for you to remove it. Usually as in my case the belt was broken anyway. If so you can skip this step, but remember it when replacing the belt.

Next hold the water pump pulley with a block of wood or something that will keep it from turning. Remove the four bolts that hold the pulley on and take the pulley off. Next you must remove the 5 bolts that hold the water pump on. You will need a 8mm socket or wrench to do this.

After the bolts are removed you must pry the pump loose with a screwdriver or bar. The pump will come off. You must clean the old gasket material off the housing. Now you are ready to install the new pump.


Just do things in the reverse order and you will be done. Replace the belt and check for leaks, add antifreeze in needed. See how easy it was. Saved yourself a few dollars also.

Sep 24, 2009 | 1990 Chevrolet Lumina APV

1 Answer

How do you replace a water pump in an aztec?


Notes Water Pump Replacement

Removal Procedure
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  1. Drain the cooling system until the coolant is below the level of the water pump.
  2. Remove the drive belt guard.
  3. Loosen the water pump pulley bolts.
  4. Remove the drive belt.


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  1. Remove the water pump pulley bolts.
  2. Remove the water pump pulley.
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  1. Remove the water pump bolts.
  2. Remove the water pump.
  3. Remove the water pump gasket.
  4. Clean the water pump mating surfaces
Installation Procedure
  1. Install the water pump gasket.
  2. Install the water pump. Notice: Refer to Fastener Notice in Service Precautions.
  3. Install the water pump bolts.
    • Tighten the bolts to 10 Nm (89 inch lbs.) .
f16e1fd.gif
  1. Install the water pump pulley. Loosely install the mounting bolts.
  2. Install the drive belt.
  3. Install the water pump pulley bolts.
    • Tighten the bolts to 25 Nm (18 inch lbs.) .
  • 258f600.gif
  1. Install the drive belt guard.
  2. Fill the cooling system.
  3. Inspect the cooling system for leaks

Jun 17, 2009 | 2001 Pontiac Aztek

1 Answer

New timing belt keeps getting loose when it cools down


yes you can get defective auto tenioners.Chage ASAP.

May 30, 2009 | 1992 Mitsubishi 3000GT

2 Answers

Do I need any special tools? How Hard is it?water pump 2002 aztek


take everything around your water pump of and use a metric 10 box end wrench

Apr 30, 2009 | 2002 Pontiac Aztek

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