3800 water pump replacment

[Outlaw]

Yep... I jumped on the bandwagon.. sort of. I got a 1998 Grand Prix GT coupe needing some work, planning on fixing it up and selling it (since you've all figured out what I do by now)

The car is actually really nice, only 125,000 miles. Needed a battery and some rear tires, that's about it... Since going through it, I've replaced some other stuff just because I like to be able to sleep at night and fix my cars the right way, and on top of that... cars that are in the best shape usually bring the highest dollar. Anyways.. Since going through the car, I noticed a small leak below the water pump... I could just brakleen it and call it a day, but from what it looks like, its a pretty easy job, and since they made millions of these fuckin motors, there are write up's galore... Just wondering if any of you have any insight or pointers when doing the water pump on one of these cars. Any and all help will be greatly appreciated.

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[Frank Dukes]

in4responses. i think mine is leaking.

 

[Frank Dukes]

Heres the AlldataDIY on it.

1.Drain the cooling system.
2.Reposition the accessory wiring junction block.
3.Loosen the water pump pulley bolts.
4.Remove the drive belt.
5.Remove the water pump pulley bolts.
6.Remove the water pump pulley.
7.Remove the power steering pump mounting bolts and reposition.
8.Remove the water pump bolts.
9.Remove the water pump.
10.Remove the water pump gasket.
11.Clean and inspect the water pump gasket mating surfaces. Installation Procedure


1.Install the gasket and the water pump.
Notice: Refer to Fastener Notice in Service Precautions.
See: Service Precautions\Vehicle Damage Warnings\Fastener Notice

2.Install the water pump bolts.
•Tighten the long water pump bolts to 34 Nm (25 ft. lbs.) .
•Tighten the short water pump bolts to 22 Nm (16 ft. lbs.) .

3.Install the water pump pulley.
4.Install the water pump pulley bolts. Tighten the bolts to 13 Nm (115 inch lbs.) .
5.Install the power steering pump.
6.Install the drive belt.
7.Install the accessory wiring junction block.
8.Fill the cooling system.

 

[Outlaw]

Heres the AlldataDIY on it.

1.Drain the cooling system.
2.Reposition the accessory wiring junction block.
3.Loosen the water pump pulley bolts.
4.Remove the drive belt.
5.Remove the water pump pulley bolts.
6.Remove the water pump pulley.
7.Remove the power steering pump mounting bolts and reposition.
8.Remove the water pump bolts.
9.Remove the water pump.
10.Remove the water pump gasket.
11.Clean and inspect the water pump gasket mating surfaces. Installation Procedure


1.Install the gasket and the water pump.
Notice: Refer to Fastener Notice in Service Precautions.
See: Service Precautions\Vehicle Damage Warnings\Fastener Notice

2.Install the water pump bolts.
•Tighten the long water pump bolts to 34 Nm (25 ft. lbs.) .
•Tighten the short water pump bolts to 22 Nm (16 ft. lbs.) .

3.Install the water pump pulley.
4.Install the water pump pulley bolts. Tighten the bolts to 13 Nm (115 inch lbs.) .
5.Install the power steering pump.
6.Install the drive belt.
7.Install the accessory wiring junction block.
8.Fill the cooling system.

Thanks boss

I found the same stuff through my research, just good to know that that's what alldata says as well. From the looks of it, shoulden't be much more than 2 hours of work with bleeding the cooling system.

I'll be doing it tonight so I can get the car up for sale asap... will report back with any tips or pointers I discover throughout the job.

 

[Frank Dukes]

lol its listed at 2.1 book hours so your right on point there.

 

[Turbocharged400sbc]

you may want to spend the additional time to change the coolant elbow since your in there already, be carefull with the lower "elbow" as its cast into the alternator tensioner asmbly, youll want to spray it with PB and work it out gently...just replace that oring with the one from the unused elbow in the package

 

[Outlaw]

lol its listed at 2.1 book hours so your right on point there.

Niceee. I guess I could run over to my mechanic at the dealership and see if there's any diagrams. If I find any, I will post up for ya'll.