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Old 10-26-2013, 01:33 PM   #1
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Help! water pump woes

ok so after a visit to a local mechanic ive been told i need a new fan clutch and water pump and after looking at the haynes manual i have ran into a snag.... i cant seem to figure out how to get the fan loose. im no mechanic but this doesnt seem to be something i cant handle but i do think i may need a little direction
thanks again everyone

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Old 10-26-2013, 01:55 PM   #2
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Not sure what year or engine but there should be just 4 nuts on the water pump flange where the fan bolts up. pull out the entire assembly and replace the clutch on the bench.

If the fan does not separate from the flange give it a shot with a dead blow hammer or rubber mallet, as they tend to stick sometimes.

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Old 10-26-2013, 02:23 PM   #3
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oops that would be some valid info its a 2003 x with the 4.0 i saw the four bolts but it looks like that is what holds the pulley on
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Old 10-26-2013, 02:52 PM   #4
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Napa should have the parts in stock. Should be able to get both a clutch fan and water pump there for less than $80. OEM would even be a better choice, but will cost more.
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Old 10-26-2013, 03:05 PM   #5
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ive got all the parts ready to go on i just can seem to get the fan off of it i put a cresent wrench on it and when i go to turn it to the left it seems to just turn the pulley and if i turn it the other way it turns everything.... i feel a little stupid having this much trouble
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Old 10-26-2013, 03:11 PM   #6
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That big nut is a RH thread so you loosen it CCW... lefty-loosey righty-tighty. Run down to your local Home Depot or Lowes & get a big strap wrench to hold the pulley still while you loosen the big nut.

Most strap wrenches are too small for that pulley so make sure to get the biggest size you can find. The last time I looked for one, the tool department didn't have a big enough size strap wrench, I had to go to the plumbing department to find one that was big enough.

They often come in a set like this, only the larger size will work.

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Old 10-26-2013, 03:24 PM   #7
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excellent! i dont know why i didnt think of that but thats the best part about all of you you help me when i cant think well Mr Jerry since i have managed to get your attention once again do you have any tips for getting the tension off the serpentine belt? it may be a lot easier once i get the fan and fan shroud out of the way but i have pushed and pulled on the tensioner and i havent seen the slightest bit of slack
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Old 10-26-2013, 03:30 PM   #8
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The serpentine belt tensioner pulley holder bracket is spring loaded on newer TJs. Insert a ratchet wrench into its square opening in front of the bracket and push on the ratchet wrench to pivot the tensioner pulley bracket downward so it releases tension against the belt. Then slip the serpentine belt off a pulley & you're set.

Only early model TJs like my previous '97 don't have a spring loaded belt tensioner.
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Old 10-26-2013, 03:37 PM   #9
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Thanks again Jerry and to everyone else as well you guy are awesome! this water pump should be a breeze now... maybe i wont have to bum a ride to work on monday now lol keep posting if you guys think of any helpful tips and hints consider me a sponge
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Old 10-26-2013, 03:41 PM   #10
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The last piece of advice I can offer where changing a water pump goes is to make sure that EVERY last scrap of the old water pump gasket has been wire-brushed off the engine block's water pump seating surface. If you don't, you will get leaks where it bolts to the block as another member here just posted asking about. I already told him the same thing on a different Jeep forum, that his leaks were very likely caused by nothing more than not having cleaned the block's water pump seating surface well enough.

Use a small wire brush together with a good light so you can see what you're doing, spend enough time to make sure that gasket seating surface is surgically clean. No need for RTV, just a good gasket & 100% scrupulously clean gasket seating surfaces.
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Old 10-26-2013, 05:54 PM   #11
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update! the fan and belt are both laying on the floor and all it took was the well stated advice of you all and my possibly broken hand so im going to have a drink go to bed and start back in the morning
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Old 10-30-2013, 03:57 PM   #12
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Final update....
the new pump, thermostat, fan clutch and belt have been on and running for a few days now and no leaks! however the engine rattle i had set out to fix is still there but the rest of the engine is much quieter now so i should be just a few days from locating this soul crushing racket lol
thanks again wf friends and fellow jeepers!

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