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Replacing Water Pump

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  #1  
Old 10-16-2013, 12:43 PM
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Replacing Water Pump

My water pump is starting to weep quite a bit. Never replaced one on this 92 with 302 before. How hard a job is it. Any bits of information I should be aware of?
 
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Old 10-16-2013, 01:25 PM
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You're going to need a big wrench to get your fan off the water pump... AutoZone rents them.
 
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Old 10-16-2013, 01:57 PM
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Make sure you turn the fan clutch nut in the correct direction...
 
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Old 10-16-2013, 02:38 PM
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Agreed. The fan clutch nut is reverse threaded, so you turn clockwise to take it off.
 
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Old 10-16-2013, 02:57 PM
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On his 302? He doesn't have the 7.3.
 
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Old 10-16-2013, 03:54 PM
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I think the fan is bolted on with 4 bolts if I remember right. It's been about 15 years.
 
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Old 10-16-2013, 04:04 PM
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Fan clutch nut? Take the fan and clutch off as one. 4 7/16" bolts which are fairly easy to remove. The fan is the easy part. The difficult part is the water pump bolts. If you have any issues with rust, you will want to soak them for a few days.

Here is how I did mine last week.

1. Drain coolant from radiator at the Percocet on passenger side tank.
2. Remove intake hoses(ease of access to pump)
3. Remove upper radiator hose.
4. Unbolt the 4 nuts on the fan that go into the water pump. I believe they are 7/16".
5. Unbolt the two 8mm nuts on the top of the fan shroud.
6. Remove the serpentine belt.
7. Remove fan and shroud together.
8. Remove the 3 14mm bolts from the power steering/ A/C bracket.
9. Remove 13?mm nut from said bracket.
10. Move entire assembly off to the side and bungee or tie it in place.
11. Detach lower rad hose from pump.
12. Detach the 2 small coolant lines from the top of the pump.
13. Unbolt the pump. 5/8 and 13mm are required I believe.
14. Clean threads if bolts.
15. Clean gasket surface.
16. Mount new pump and gasket.
17. HAND tighten the bolts.
18. Reattach and assemble everything in reverse.
19. Fill system with coolant.
20. Start trucks and allow it to run until the thermostat opens.
21. Once it is open, add coolant till filled and check for leaks.
22. Shut off the truck and relighted ALL of the water pump bolts. Be careful as everything will be hot.
23. Pat yourself on the back, enjoy a cold drink of choice and relax. Wasn't that bad was it?
 
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Old 10-16-2013, 08:38 PM
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Oh. I guess I assumed fan clutches and water pumps were similar between gassers and diesels ... yet another thing that's different.
 
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Old 10-16-2013, 09:22 PM
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What area couple y'all talking bout? The fan is only held on by 4 lil bolts I think 7/16's..
 
  #10  
Old 10-17-2013, 05:17 AM
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You should be aware that the bolts holding the water pump on have a tendency to seize to the water pump housing. Very common. If you search this forum you will find several threads about it. If you can see white powder around the bolts it is the corrosion that causes the problem. I guess they can rust and break also, but I've never run into that personally. One way or the other, soaking them with penetrating fluid is a good idea.

If those bolts do break off it can become much more of a job, often requiring the timing cover to be pulled.
 
  #11  
Old 10-17-2013, 03:45 PM
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Got er done

Hey thanks for all the help fellas. I got everything done today. Didn't have too much of a problem. Couple of bolts were a little tight, but I managed to get them off ok and cleaned them up. Put anti seize on them when I reassembled everything. Did more damage to myself than to anything else. I've GOT to get me a pair of those mechanic gloves. I'm getting a little old now and my skin is getting thinner I guess. Every time I bump into something, I start bleeding. Thanks again for the help.
 
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