Ford Mustang



November, 17, 2007 AT 9:06 AM

How do you change the water pump in a 86 mustang the engine is carb 4bbl dont know if it is a 5.0 or a 351 numbers are worn off the engine so I cant tell I need some help here


1 Answer



November, 17, 2007 AT 1:21 PM

1. Drain cooling system.
2. Disconnect neg. battery cable.
3. Remove power steering belt.
4. If equipped with A/C, remove the idler pulley bracket and A/C belt.
5. On engines with thermactor air pump remove belt.
6. Disconnect the lower radiator hose and heater hose from water pump.
7. Remove the retaining screws and position the fan shroud rearward.
8. Remove fan, fan clutch and spacer from engine.
9. Remove the pulley attaching bolts, and pulley from the water pump hub.
10. On the 4-140 engine, remove the cam belt outer cover.
11. On vehicles equipped with the water pump mounted alternator, loosen the alternator mounting bolts, remove alternator belt and remove alternator adjusting arm bracket from water pump. If interference is encountered, remove air pump pulley and pivot bolts. Remove air pump adjusting bracket. Swing the upper bracket aside. Detach the A/C compressor and lay aside. Do not disconnect A/C lines. Remove any accessory mounting brackets from water pump.
12. Loosen the bypass hose at the water pump if equipped.
13. Remove the water pump retaining bolts and remove water pump from engine.


After removing the drive belt, loosen the water pump pulley's bolts.


Remove the pulley attaching bolts.


Remove spacer if equipped


Remove pulley


Loosen hose clamp and remove lower hose


Inspect hose replace if needed


Loosen and remove water pump bolts


Remove water pump

Sorry, photo's from 4cylinder it's the only photo's I have but should give you a good ideal. If I find 8cylinder photos I will post them later. Hope this help's. Fairracing31

A 5.0L is a 302, 5.8L is a 351. I believe your Mustang is a 5.0L

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