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Swapping out the water pump on an I-6


 
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offroading.net
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Joined: 22 Feb 2006
Location: Malpas, Cheshire, UK

PostPosted: Tue Oct 03, 2006 10:58 pm    Post subject: Swapping out the water pump on an I-6 Reply with quote

On an XJ, easy job?
You dont need to take the rad out do you??
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Steve Wright



steve@offroading.net
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monkeyman3875
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Joined: 06 Jul 2005
Location: Charlotte, NC

PostPosted: Wed Oct 04, 2006 6:54 pm    Post subject: Reply with quote

Doesn't sound too hard but here it is, straight from the factory service manual.

Removal

1. Disconnect negative battery cable.
2. Drain cooling system
3. Disconnect electric cooling fan connector.
4. Remove electric cooling fan/shroud assembly.
5. Remove serpentine belt
6. Unbolt viscous fan shroud
7. Loosen (but do not remove) the four water pump pulley-to-water pump hub mounting bolts and the four viscous fan to idler pulley nuts.
8. Remove the four viscous fan to idler pulley nuts and remove the fan and shroud together.
9. Remove the four water pump pulley bolts and remove the pulley
10. Remove power steering pump and bracket (that's a whole other story but also not hard)
11. Remove lower radiator hose from water pump. Remove heater hose from water pump fitting.
12. Remove the four pump mounting bots and remove the pump from the vehicle. NOTE: one of the four bolts is longer than the others.
13. If replacing pump, remove heater hose fitting. Note position of fitting before removal.

Install
1. If replacing pump, install heater hose fitting to the pump. Use a sealant on the fitting.
2. Clean gasket and mating surfaces (on pump and block). Must be spotless and shiny in order to ensure seal(brake cleaner works wonders).
3. Install gasket and weater pump. The silicone bead on the gasket should face the pump. Tighten mounting bolts to 30Nm (22ft.lbs.). Rotate the shaft to make sure it turns freely.
4. Connect radiator and heater hoses to pump.
5. Position water pump pulley to water pump hub.
6. Install four pump pulley bolts. Tighten bolts to 27Nm (20ft.lbs.)
7. Install power steering pump. (same as removal, just in reverse)
8. Install the viscous fan and shroud together. Install the four fan to idler pulley nuts and tighten to 27Nm(20ft.lbs.).
9. Install and tighten viscous fan shroud bolts.
10. Install and tension the serpentine belt. Easy if you use 2 wrenches, use long positioning bolt to tension the belt then use the second wrench to tighten the pulley into place.
11. Install the electric cooling fan/shroud assay.
12. Install and tighten fan shroud bolts and connect electrical fan connector.
13. Fill cooling system and check for leaks
14. Connect battery cable
15. Start and warm engine. Check for leaks.

There you go. All said and done. If you have any questions let me know, I've pulled most of that crap off before anyway.
_________________
-1997 Stock XJ
-4.0 L
-4-speed automatic
-130k Miles (and counting)-> let me know of any preventative maintenance you guys can think of. PM me.
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Renegadestang
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Joined: 07 May 2005
Location: Marietta, GA

PostPosted: Wed Oct 11, 2006 9:10 pm    Post subject: Reply with quote

It wasn't very hard on my '98. No, I didn't have to remove the radiator. I did have fun, however, getting the forsaken mechanical fan off!
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1998 Jeep Cherokee Sport: 4.0L, AW4, 235/75 Wild Spirit's

1981 Jeep CJ-7 Renegade: 307-4V SBC, SR-4 4-spd., 31x10.5 Wild Spirit's

1966 Ford Mustang: 289-4V, C4 Auto.
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