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Vg30e nissan 94 Pathfinder rear main oil seal leaking

Do you remove the engine or geabox,and does the seal just push in or is it more involved e.g.drop the sump or crank

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: oil leak out the rear main seal on a 2000 ford explorer

First, the easiest way IS to remove the transmission, it is a one piece seal, if it were a 2 piece, you would need to remove the oil pan and Rear Main Bearing Cap which in my opinion is alot tougher. When installing the new seal, make sure the the end of the crankshaft is clean of debris, lube the seal before sliding it over the end of the crankshaft to ease installation and some like to apply a thin coat of high temp sealant to the outside surface of the new seal to ensure no leakage. When reinstalling the flywheel/flex plate, proper torque is key because you dont want it working loose and having to remove the transmission again.

Posted on Mar 03, 2009

pippall
  • 1486 Answers

SOURCE: 1994 nissan quest crankshaft rear main seal removal

There is no other way other than to remove the engine.I now its a lot of work but if you want to do the job properly then thats the way to do it.You can remove the gearbox and try.I think thats a waist of time good luck.

Posted on Jul 28, 2009

Smooth_Gecko
  • 125 Answers

SOURCE: 1997 Prado v6 3.4ltr rear main seal oil leak. Can

Motor out is not needed.
You need to disconnect the drive shafts, put a jack under the back of the motor, and put a trolley jack under the box before you undo it.
You do not say if it is auto or manual, removing the box is slightly different depending on which one you have.

Face the trolley jack so it can roll backwards easily, remove anything that may be stopping the box coming down and back. eg: exhausts, gear linkages/stick ( from in the cab if manual)
reverse and neutral light wires, oil cooler pipes.

You will need to lower the box with a couple of easily accessible bolts still in place at the bell housing. Do this slowly with someone watching the engine fan to radiator gap etc, and make sure you do not do more damage getting it out.
Now set both jacks to take equal weight, making sure the box is balanced and secured to the trolley jack before you undo the last bolts.
It is all about balance, alignment and going very slowly with the separation.
Do not rush it. Be very slow and calm. Sudden movements can bend the gearbox shaft, damage your torque converter, or worse, trap you.
When everything is right and secure, you will be able to shake the box by hand and pull it back.
You may have to adjust the height of either or both jacks to take it out cleanly, being very careful of how much you allow the back of the motor to drop and what it may contact or stretch and break as you do so.
Take care and work safe. :)

Posted on Oct 15, 2009

cmcduncand
  • 714 Answers

SOURCE: Rear engine oil leak....

Oil leak can be attributed to several factors.
1. Gasket failure.
2. Uncontrolled Crank case pressure Failure.

RECOMENDATION:
Tighten both the valve cover and oil pan bolts.
Replace the Positive Crankcase Ventilation Valve and vacuum line.,

INFO: PCV
This is a valve causes a negative vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off.

Hope this tip guides you in the correct direction to solve this problem.

R/
David

Posted on Mar 15, 2010

BCAS1298
  • 3092 Answers

SOURCE: 94 nissan pathfinder. 3.0V6. timing belt change,

Hope this help's you.2632ba3.gif

Posted on Jun 28, 2010

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Head gasket repair cost


labor rate both sides head gaskets 19 hours one side would be 13 hours rear main oil seal for 4WD labor rate 10 hours .you have drop transmission fix rear main oil seal leak.make sure have at $2000.00 to $3000.00 but call around get a price check.

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I would expect an engine with this mileage to leak some oil... not drip, but seep oil on the hot engine and produce a smell or smoke. Make sure the PCV system is working correctly, use thicker weight engine oil like 50 weight Castrol and use an over the counter oil additive like Engine Restore, which you can buy at your local auto parts store.

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Hi Eduardo:
Check this information (click over pics for zoom)...

zjlimited_1062.jpg

Fig. 20: Exploded view of the cylinder head assembly-VG30E engine


zjlimited_1063.jpg

Fig. 15: Cylinder head loosening sequence-VG30i and VG30E engines


zjlimited_1064.jpg

Fig. 17: Cylinder head torque sequence-VG30i and VG30E engines


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Tighten all bolts, in order, to 43 ft. lbs. (59 Nm).
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Tighten all bolts, in order, to 40-47 ft. lbs. (54-64 Nm). Or, if you have an angle torque wrench available, tighten them an additional 60-65 degrees.


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1 Answer

94 pathfinder v6 auto 4x4 .engine died nuw wont start ,turns over and tries to fire,maybe the timing belt broke?if so would the valve train be damaged Thanks Barry


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Mar 28, 2010 | 1997 Nissan Pathfinder

1 Answer

Rear engine oil leak....


Oil leak can be attributed to several factors.
1. Gasket failure.
2. Uncontrolled Crank case pressure Failure.

RECOMENDATION:
Tighten both the valve cover and oil pan bolts.
Replace the Positive Crankcase Ventilation Valve and vacuum line.,

INFO: PCV
This is a valve causes a negative vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off.

Hope this tip guides you in the correct direction to solve this problem.

R/
David

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Have you replaced the rear main seal? What bout the housing that holds the seal, it'a an alu casing and it might hava a crack? The crankshat rear part where the seal goes could have a deep groove as well.

Mar 27, 2009 | 1993 Nissan Pathfinder

2 Answers

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Nothing will really fix it other than new parts.  It's not bad job, just time consuming.  Need a way to hold tranny up while pulling parts.  Have a chilton or haynes manual.
Basically though, you need to remove transmission or be able to move it back far enough... remove flywheel from crankshaft end... unbolt and remove rear main seal retainer... replace seal and gasket... reverse procedure.
James Mac

Sep 09, 2008 | 1999 Nissan Pathfinder

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