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1987 Cherokee 4.0 water pump

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Old 07-12-2013, 08:29 AM
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Default 1987 Cherokee 4.0 water pump
Straight to the point....Is an 87 XJs water pump reverse rotation or not?


I brought in my pump, the parts monkey gave me what he said was the correct one. Mine is blank on the fins, the new one is stamped "R" making me concerned...
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Old 07-12-2013, 02:06 PM
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Are the impeller fins curved the same way on both?
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Old 07-12-2013, 02:10 PM
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Oops. That I didn't think to compare. :/
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Old 07-12-2013, 02:54 PM
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I thought all 4.0's had the same flow direction.
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Old 07-12-2013, 03:05 PM
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I read on NAXJA that they were not.
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Old 07-12-2013, 03:30 PM
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I just talked to my parts woman. She said 87 through 00 only thing that changes is the hub height.
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Old 07-12-2013, 03:35 PM
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Hub...you mean the pulley?

The descriptions I read showed the different hub heights. But I'm sure I saw a different rotation...
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Old 07-12-2013, 03:48 PM
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4.2 with v-belts same pump different rotation...http://www.jeepforum.com/forum/f12/w...torial-893428/
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Old 07-12-2013, 03:52 PM
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Originally Posted by freegdr
4.2 with v-belts same pump different rotation...http://www.jeepforum.com/forum/f12/w...torial-893428/
I was hoping you'd find this thread. My brain keeps telling me that the link I saw was posted by you!

I may be losing it, tho.
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Old 07-12-2013, 03:52 PM
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Found this.

http://www.wranglerforum.com/f5/2000...ump-47163.html

According to one guy out of the chatter they changed direction when they went from v belt to serf belt.
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Old 07-12-2013, 03:53 PM
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Originally Posted by freegdr
4.2 with v-belts same pump different rotation...http://www.jeepforum.com/forum/f12/w...torial-893428/
Beat me!
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Old 07-12-2013, 03:53 PM
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Originally Posted by Gee oh Dee
Hub...you mean the pulley?

The descriptions I read showed the different hub heights. But I'm sure I saw a different rotation...
Yea the pulley height.
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Old 07-12-2013, 04:17 PM
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Originally Posted by JeepingDan
Beat me!
Been off work 4 days got reflexs like Si on Duck Dynasty
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Old 07-12-2013, 04:37 PM
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Originally Posted by Gee oh Dee
I read on NAXJA that they were not.
That's what you get for deserting us and going to the enemy camp!!!!
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Old 07-12-2013, 04:38 PM
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BTW the serpentine deal is true. The chevy dealer across town got a trade-in. A CJ from Cali with serpentine drive. Installed a v-belt water pump and fought an overheating issue for weeks!!!
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