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Water Pump


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milling machine
User

Dec 30, 2009, 3:48 PM

Post #1 of 7 (1329 views)
Water Pump Sign In

I have a 2000 nissan maxima, air, automatic, v-6, 3000, twin cam 24 valve. I put a new water pump in and now I have coolant mixing with oil, I did not put rtv sealant on the water pump screws, could this be the cause of this ? Or do you think it is the water pumps 2 rubber gaskets, I was real careful when I put this in not to damage the rubber gaskets ?


Sidom
Veteran / Moderator
Sidom profile image

Dec 30, 2009, 6:22 PM

Post #2 of 7 (1316 views)
Re: Water Pump Sign In

It sounds as though you may have caught the O ring when you were reinstalling it. Did you use any type of lube on the O ring?

I don't know if you have a pressure tester but the best thing to do would be to take the cover off & pressurize the system to see exactly where the leak is be for tearing it down...

I'm assuming you weren't getting this mix before the water pump replacement.......


milling machine
User

Dec 30, 2009, 8:43 PM

Post #3 of 7 (1308 views)
Re: Water Pump Sign In

You could be correct, but while I was waiting for a answer a nissan mechanic told me when you change out that pump it will injest lots of coolant in the oil pan during the process, he might be right because before I started the engine up I checked the oil and it was way over fillled, I thought I was just reading the dip stick wrong and ignored it. I will change the oil tommorow and let you know if that solves the problem, Thanks for the responce.


Sidom
Veteran / Moderator
Sidom profile image

Dec 30, 2009, 11:52 PM

Post #4 of 7 (1302 views)
Re: Water Pump Sign In

I believe you are right.......you got me assuming again...lol

Change the oil & filter and you should be good. Since you did run it with coolant, after the change if there is any evidence of coolant left and the mileage is low enough I would be tempted to flush the engine...........


milling machine
User

Dec 31, 2009, 3:16 PM

Post #5 of 7 (1295 views)
Re: Water Pump Sign In

I just did two oil changes on it and most of the coolant is out but I will do another one tommorow, it was saturated with coolant. How do you do an engine flush ?


Sidom
Veteran / Moderator
Sidom profile image

Dec 31, 2009, 3:26 PM

Post #6 of 7 (1293 views)
Re: Water Pump Sign In

There is a variety on engine flushing products. Most parts stores carry them in their chemical sections. You just add it to the engine, run for about 10 minutes & then change the oil & filter.

I usually won't do it on high mileage engines with excessive sludge build up due to the fact you may break up some big pieces & plug up oil ports or pick up screens.


milling machine
User

Dec 31, 2009, 8:30 PM

Post #7 of 7 (1289 views)
Re: Water Pump Sign In

This engine has about 130,000 on it, but runs excellent.






 
 
 






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