Water Pump Is it very difficult to replace water pump on 87 Buick Sommerset

SOURCE: How to change a water pump on a 1999 Buick Century 3100?

the water pump on the 3.1 isnt to hard to change ...

1. Disconnect the negative battery cable.
2. Partially drain the cooling system into a suitable container.
3. Remove the drive belt guard.
4. Loosen the water pump pulley bolts before removing the drive belt. This should help keep the pulley from turning as the bolts are loosened.
5. Remove the drive belt. Remove the water pump pulley bolts and remove the pulley.
6. Remove the water pump bolts and separate the pump from the engine front cover.

SOURCE: 2000 buick lesabre - water pump replacement

first disconnect the battery then check how the serpentine belt is lined up so u can take it off and put back on. Then the pump should be on the side of the motor with 9or12 bolts there could be more! after taking out take razorblad and skrap the old gasket clean wipe of then put new gasket and pump back on dont over tighten the screws cuase the pump my be aluminum.

SOURCE: need to replace the water pump on a 93 buick regal

1-Remove serpentine fan belt
2-Remove pulley from front of water pump (10mm socket or wrench)
3-remove 6 bolts from water pump assembly (8mm socket or wrench)
4- replace water pump
5- reverse order to reassemble

SOURCE: 93 buick park ave Ultra. replacing water pump

Yes. Put a jack under the motor and remove 3 bolts from side of engine and the long center pivot bolt in mount and the 2 bolts that go top down into the frame and loosen the 2 bolts below mount. Jack up the motor until you can separate the mount, leaving the engine side in and removing the frame side. The engine side can be moved out of the way without completely removing.

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SOURCE: install water pump on 3.1 buick engine

Visit the autozone.com website and register the car information. It doesn't cost anything and you will have access to an online repair manual for the car. The steps for replacing the water pump should be available there. It's a handy resource. Hope this helped and best wishes.