• Tiny
  • pingel
  • 1994 Mazda b3000
  • 6 CYL
  • 2WD
  • manual
  • 172,000 miles

I have a water pump that leaks and need to replace it. I was looking for some instruction before I attempt to launch into it. I have a 94 Mazda B3000 pickup with a 3.0 engine.

Sunday, January 9th, 2011 AT 7:25 PM

1 Answer

  • Tiny
  • rasmataz
  • Member


Caution: Do not disassemble the water pump. If a problem is found, replace the water pump assembly.

Disconnect the negative battery cable.
Drain the engine coolant.
Remove the fan shroud attaching screws and lift the fan shroud out of the two lower attaching clips.
Remove the cooling fan retaining bolts, the cooling fan and fan shroud.
Loosen the water pump pulley bolts.
Lift the drive bolt tensioner pulley in a clockwise direction and remove the drive belt.
Remove the water pump pulley.
Remove the generator adjusting arm and brace from the throttle body.
Disconnect the heater hose from the water pump.
Rotate the belt adjuster out of the way.
Remove in the order shown in the figure.
Inspect all parts and repair or replace as necessary.
Install in the reverse order of removal,
INSTALLATION NOTE: Clean the gasket surface on the timing cover and the water pump. Use care when scraping aluminum surfaces because gouging could form leak paths.
Apply sealant to both sides of a new gasket and place it on the water pump.

Water Pump
Install the water pump bolts.
Bolt length: (A) Length: M8 x 1.25
(B) Length: M6 x 1.00
Tightening torque: (A) 25 N.M 2.7 kgf.M, 19 ft. Lbf
(B) 10 N.M 1.0 kgf.M, 7 ft. Lbf

Note: Apply clean engine oil to all bolt and stud threads before installation.

Steps After Installation

Fill the radiator with the specified amount and type of engine coolant.
Connect the negative battery cable.
Start the engine and check for leaks.
Bleed the cooling system.

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Monday, January 10th, 2011 AT 5:50 AM

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