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milling machine
User
Dec 30, 2009, 3:48 PM
Post #1 of 7
(1333 views)
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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 ?
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Sidom
Veteran
/ Moderator
Dec 30, 2009, 6:22 PM
Post #2 of 7
(1320 views)
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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.......
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milling machine
User
Dec 30, 2009, 8:43 PM
Post #3 of 7
(1312 views)
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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.
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Sidom
Veteran
/ Moderator
Dec 30, 2009, 11:52 PM
Post #4 of 7
(1306 views)
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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...........
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milling machine
User
Dec 31, 2009, 3:16 PM
Post #5 of 7
(1299 views)
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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 ?
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Sidom
Veteran
/ Moderator
Dec 31, 2009, 3:26 PM
Post #6 of 7
(1297 views)
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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.
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milling machine
User
Dec 31, 2009, 8:30 PM
Post #7 of 7
(1293 views)
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This engine has about 130,000 on it, but runs excellent.
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