Just changed timing belt and water pump
SOURCE: timing belt/waterpump
usually a good time to change it is at about 100,000 miles. change it before it becomes a must or not ride(type of thing). if your water pump is run by your timing belt, then yes you should change the water pump when you do the timing belt. the tension from the new belt will sooner than later kill the bearing in the old water pump and it will cost you twice to fix it versus the one time fix. when you go in to the shop there should be no additional cost to replace the timing belt because it has to come off to replace the water pump.
SOURCE: timing belt 1998 Mazda Protege
Here's the AutoZone online manual page for timing belt and here's the page for the water pump.
SOURCE: Timing Belt on 2002 Mazda Protege
every 90,000 to 100,000miles and yes it is strongly recomended to replace the water pump with it
SOURCE: Changing a 1991 Mazda Protege Serpentine Belt
You've got to loosen the mounting bolt first, which is located behind the pulley itself. Rotate the pulley until the large opening allows access to the bolt, then use a socket with a narrow head to turn the bolt, just until it starts to turn freely.
Then there are two locknuts on the adjuster; one right near the mounting bolt and one underneath towards the middle of the pump. Loosen both of those, and then *finally* you'll be able to turn the adjusting bolt that faces the front end of the car on the end of the adjuster arm. It's a long bolt; just keep turning that thing until the belt loosens enough to come off the pulley.
Best of luck!
SOURCE: Iam replacing water pump om 2002 mazda protege,
YES, AND YOU SHOULD REPLACE THE TIMING BELT AT THE SAME TIME .
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