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Loss of oil in 1997 Mitsubishe Starwagon

A friend's 1997 starwagon uses 4L of oil per week. No oil smoke is visible. Rocker cover gasket has been replaced. Only small drops of oil visible where car is parked. Some weepage from rear section of sump gasket. Where is the oil going. It is the 2 litre motor. It has been up on the hoist but no oil leaks visible. It appears to loose oil only while motor is under load. No evidence while revving in stationary mode.

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  • Mitsubishi Master
  • 2,122 Answers

Hi David, Some oil leakages occur only when the engine is running. As you've had the vehicle on a hoist lift and inspected underneath and discovered no major signs of leakage I suggest you start the engine and with the vehicle stationery, press the accelerator pedal so the engine is at about two thousand six hundred Revolutions per minute (RPM) With the engine running at that speed observe the exhaust. I believe you will then see bluish gray smoke being omitted. If I'm correct it will mean an engine rebuild as the smoke will indicate oil burn and defective piston rings. Indecently the usual cause is poor servicing and neglecting to replace the air filter. Regards John

Posted on Jul 20, 2013

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Posted on Jan 02, 2017

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freetek
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SOURCE: rocker cover oil leaks NL pajero 1998 NL

The gaskets may not be at fault; the first time the valve cover was removed it was probably damaged by an impatient mechanic.
Most covers are sheet metal and the gaskets have an ugly tendency to get sticky over time making removal very difficult.
An inexperienced or sloppy mechanic can easy damage the edge of the cover causing a permanent distortion that a gasket replacement cannot correct.

I hope you have correctly identified the source of the leak since a warped cylinder head can also cause oil loss but that would be from the junction of the cylinder and block.
That would be much more expensive to correct than replacing a damaged valve cover.

Posted on Jun 21, 2008

  • 1861 Answers

SOURCE: slite oil leak from rear valve cover gasket per dealer $650.00

Hello. Let me try to assist you the best I can, with the hope of achieving a FixYa rating from you for my assistance.

Changing the rear valve cover gasket on your vehicle would be not considered a "real" big job, but IS a time-consuming job.
In order to remove the rear cover, you first have to remove the intake plenum. If you do not remove the plenum, you can't get to the valve cover bolts that are under the plenum. After the plenum is off, the valve cover is easy to access. You will also need to replace the intake plenum gasket, if you do the job yourself.

I hope this information has satisfied your question.
Thanks for choosing FixYa for assistance!

Posted on Jan 28, 2009

  • 2 Answers

SOURCE: oil leak in 1998 olds intrigue

pull the valve cover gaskets, clean them and replace them, there is no cheater way to do this. To pin point leak you'l need to look closely at the covers if oil is running down the sides towards front or back of motor (theres 2 covers, one front, one rear) if it is, you may be able to tighten bolts, but be careful not to strip them. If they are tight, youl need to change the cover gaskets

Posted on Mar 14, 2009

  • 260 Answers

SOURCE: Motor Oil leaks from 1999 Honda Civic EX

make sure they are tight
could be time for head gaskets
make sure the old gasket from the old filter came off the block sometimes they come off old filter and stick this causes a leak due to improper seal.

Posted on Apr 10, 2009

johnjohn2
  • 5763 Answers

SOURCE: BMW 316 leaking oil, about 1 litre every 2 weeks

your going to have to clean it down good with some engine cleaner, then run engine, try to pin down leak. may have a bad oil preasure switch thats leaking, or oil filter, or a gasket; hope this helps good luck.

Posted on Oct 15, 2009

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The piston rings are worn out and there is no other solution but to replace it.
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