Question about 1995 Nissan Maxima

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After replacing water pump on 95 nissan maxima water goes straight ta oil pan from radiator, why?

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Ok there are two o rings in the water pump one keeps the oil from the timing chain side to come in the water and also keep the water/coolant separate from the oil side the second one keeps from coming out of the engine. i am sure the first o ring i talked about is pinched or damages or is not installed when the water pump was installed.

Posted on Dec 02, 2012

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  • crystal Dec 02, 2012

    thanks, we are going to take tha water pump back off to see if we damanged the o rings or something, i hope thats wat it is, otherwise i have no idea.thanks for tha video,thats actually the ones we used in replacing it to begin with :)

  •  ali abbas
    ali abbas Dec 02, 2012

    use some grease on the oring next time when put the water pump in and you are welcome i hope it helps you any questions you can ask me i am a certified tech.

  • crystal Dec 02, 2012

    yeah lookin back i think thats where we messed up, didntput grease or any type of lube on the o rings. so in tha mornin we shall try again and thanks if i have any more questions i will be sure ta ask.

  •  ali abbas
    ali abbas Dec 02, 2012

    you got it buddy

  • crystal Dec 02, 2012

    yeah apparently it wasnt the o rings. we replaced them, and lubed them this time and put it back together an once again water went from radiator to oil pan. guessin my head is cracked and i am screwed

  •  ali abbas
    ali abbas Dec 03, 2012

    yea man that engine is not easy to do a head gas ket. so it started happening after you did the water pump ? did the car overheated alot b4 you changed it .

  • crystal Dec 03, 2012

    yeah it runs hot. there is a small leak in radiator but i kept a check on tha water. well it ran hot big time thursday and broke down friday. i went ta see about it, put water in it an it was leakin round under tha water pump sooo changed that first ta see if maybe it was just tha water pump. with no such luck.

  •  ali abbas
    ali abbas Dec 04, 2012

    sorry buddy i wish i could help

  • crystal Dec 04, 2012

    awe thanks, but we will be fine. borrowing families cars till we figure sumn iout. jus hate it cause i liked my lil car :(

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Posted on Jan 02, 2017

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SOURCE: How to replace water pump

not to easy,,,first take off the serpintine belt then the pulley (four 10 mil bolts)then the pump behind that about 5 or 6 10 mil bolts,,,pop off the pump clean surface of where pump sits in then replace pump,,dont forget gasket sealer all around pump,,,can be tricky

Posted on Apr 21, 2009

  • 1 Answer

SOURCE: on my 2000 nissan maxima i just got the water pump

no, but they have to push in the timing chain tensioner in order to clear the water **** gear. It could be that there is air traped in the tensioner which should bleed out by it-self after running awhile.Or the chain was noisy before but you could not hear it because the water pump was possibly making more noise than the timing chain.

Posted on May 23, 2009

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1 Answer

Replace water pump 95 Nissan maxima


Remove the Old Water Pump
  • 1

    Place a drain pan underneath the radiator. When the engine is cool, drain the cooling system from the radiator into the pan.

  • 2

    Place a car jack underneath the oil pain to support it. Also, to protect the engine parts, put a block of wood onto the jack.

  • 3

    Disconnect the negative battery cable and remove the engine mount and bracket on the right side.

  • 4

    Take out the drive belts as well as the idler pulley bracket, the chain tensioner cover and the water pump cover.

  • 5

    Push the timing chain tensioner sleeve up and put a stopper pin in it to keep it from slipping. Take out the chain tensioner assembly.

  • 6

    Turn the crankshaft pulley in a backward motion until it rotates 20 degrees.

  • 7

    Place 2 MB bolts into the threaded holes of the pump and tighten them by hand, alternating turning a half turn each at a time unit they reach the timing chain rear case. Doing it this way will prevent damage to the timing chain rear case.

  • 8

    Remove the water pump, throwing away the old o-rings. Make sure not to let the water pump hit the timing chair.

Install the New Water Pump
  • 1

    Clean all the mounting surfaces on the water pump and covers.

  • 2

    Install the new water pump with the new o-rings, tightening the bolts to 75 to 95 inch pounds (8.5 to 10.7 Nm).

  • 3

    Turn the crankshaft pulley back to its starting position (20 degrees forward).

  • 4

    Install the chain tensioner and water pump covers, tightening to .092 to 130 inch pounds (2.3 to 3.3 mm).

  • 5

    Take out the stopper pin from the timing chain tensioner.

  • 6

    Put a bead of liquid sealant onto the mating surfaces of the water pump and timing chain tensioner.

  • 7

    Install the timing chain tensioner with the water pump to the engine block, tightening the bolts to 87 to 113 inch pounds.

  • 8

    Add the drive belts, the idler pulley bracket and the engine mounting bracket with the engine mount.

  • 9

    Reinstall the negative battery cable and remove the jack from under the engine. Install drain plugs to the cylinder block.

  • 10

    Start the car and check for leaks when the engine reaches normal operating temperature.

Continue to monitor for the next few days for air bubbles in the system causing the fluid level to go down. NEVER TOUCH A HOT ENGINE, CHECK WHEN ENGINE IS COOL.
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1 Answer

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