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| Waterpump Installation |
| Category: |
Cooling System |
| Difficulty: |
7 |
| Approximate Time: |
5-6 hours |
| Application(s): |
400 Pontiac |
| Added By: |
Emission_This |
| Last Updated: |
0000-00-00 00:00:00 |
| Views |
7774 |
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Tools Needed:
Rachet set, wrenches to perform work.
Torque wrench
Parts Needed:
Water pump, I used a Milodon High performace aluminum water pump(89.99 from Jegs and Summit). It came with the pump and two gaskets.
Spare Coolant (water...it was free)
Silicone(for gasket) (around 3 bucks or so)
Purpose:
If you need a new water pump...duh
How - To:
Step 1
Well after opening the hood, putting a bowl under the pump, and looking around the engine for awhile, the first step is to unscrew the 4 nuts holding the fan to the water pump pulley.
After removing the fan, remove the belts, then the water pump pulley.
Use a wrench to pull the screws that held the fan to the old water pump out, and then use it again to screw them into the new one.
Step 2
You can now start unscrewing water pump bolts, I lossened the lower radiator hose first to let some coolant out. After taking the alternator bracket bolt move it out of the way. There are some tricky bolts that hold the alternator in place, and the water pump to the bracket.
I used a flat head screw driver to pry open the the seal, now just sit back and watch the green goo flow out.
Since the water pump didn't come with a flow director thing, I used the one I had (very thin plate the size of the pump with 3 holes in it)
Step 3
Then you get the fun job of scrapping the old gasket off both sides of the flow director, and the water pump bracket.
Then Apply a bead of silicon on all contacting metal surfaces, starting with the silicone, then a gasket, then more silicon.
So it should be ...bracket, silicone, gasket, silicone, flow thinggy, silicone, gasket, silicone, water pump.
Let it sit awhile, then start screwing in the water pump bolts, not to tight, then once there in use the torque wrench to torque them down to 15 ft/lbs.
Step 4
Now here is wher I ran into trouble, The bolt that holds the bottom of the alternator in place is about 5 inches long, it goes from the power steering bracket, to the alternator bracket, throught the alternator, then through a 2 inch steel....bolt holder thing, about 1/4 inch thick. The problem was that without the alternator bracket the entire set up was about 4 3/4 inches, while it has to fit in a space thats about 4 11/16...well its about 1 mm shorter.
Step 5
Needless to say it took me awhile to figure out that I didn't do anything wrong, but that I just needed to pull the alternator really hard and slide the whole thing in real fast. You'l see what im talking about..or not.
Step 6
With that all reassembled, and double checking everything, put the water pump pulley on and see if it lines up(how I noticed the alternator thing) with the other pulleys. If it does then put the belts back on, in my case I put the main pulley/water pump/alternator one on first.
Step 7
I then had to losen the power steering pulley to get the other belt on....which in the mean time I was taking off random bolts(another 30 minutes to put them back on)
Then put the fan back on and tighten the nuts on the fan, it should secure the fan to the pulley.
Step 8
Tighten the belts as much as needed and fill the radiator up with coolant.
Start her up and see if there are any leaks..I didn't have any so I don't know how to help ya there.
Cruise around and enjoy.
Comments:
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