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Robert, Technician
Category: Car
Satisfied Customers: 13456
Experience:  6 years experience with car repair.
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87 mazda b2200: i know if the water pump is..indicators

Customer Question

how do i know if the water pump is bad on a 87 mazda b2200 truck? are the indicators on the right side of the engine?
Submitted: 9 years ago.
Category: Car
Expert:  Robert replied 9 years ago.

Hi There!


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The water pump is designed to drip coolant out weep holes when the internal seals are failing. This is per design to let you know it is time to replace it. Also Grab opposite ends of the round pulley and check for "play" (looseness): Try to rock it back and forth. There should be no give. If there is, the bearings are going and it's time to replace the water pump. By the time you can feel play in the water pump pulley, you may also be able to hear the bad bearing when the engine is running - there may be a low-pitched grinding noise coming from the water pump pulley.


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