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Old 08-08-2013, 05:27 PM   #1
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Water pump replacement

I just replaced the water pump in my 93 YJ 4.0. The original water pump had 4 threaded screws that the fan and pulley mount to, but the new one doesn't. I am assuming I will need some PB Blaster or something like that and just pull them out, but I just want to make sure before I screw this little project up. Just worried that if I put the old screws in the new pump, they may not hold the fan as well. (Probably being paranoid)

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Old 08-08-2013, 05:32 PM   #2
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old ones will be fine but if you prefer,go to the hardware store and get some new studs or bolts..grade 5 at least but I always prefer grade 8 on most anything

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Old 08-08-2013, 05:35 PM   #3
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Originally Posted by harleydragon View Post
old ones will be fine but if you prefer,go to the hardware store and get some new studs or bolts..grade 5 at least but I always prefer grade 8 on most anything
Much appreciated! If it wasn't the daily driver it wouldn't worry me as much
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Old 08-08-2013, 05:39 PM   #4
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I would not have a second thought about using the old ones..clean them up and oil them is all I would do
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Old 08-08-2013, 11:45 PM   #5
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They are fine to reuse, just double nut them and back them out, mine came out easy, no PB blaster needed.
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Old 08-09-2013, 04:23 AM   #6
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Quote:
Originally Posted by harleydragon View Post
old ones will be fine but if you prefer,go to the hardware store and get some new studs or bolts..grade 5 at least but I always prefer grade 8 on most anything
That's a quote from my dad, "Do you have grade 8's with lock washers? Do you even have plain washers? DON'T FORGET THE NEVER-SEIZE!!!!"
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Old 08-09-2013, 06:24 AM   #7
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The easy way to remove those studs is to double nut them.
just screw on two nuts and tighten them against each other (2 wrenches).
Then put a wrench on the inside nut and unscrew while holding the shaft.
In 40+ years that methoud has never failed me.

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