mutasemb

What you are saying makes sense. will proceed with a compression test first.
if compression is perfectly normal, what could the problem be?


also, how is oil overfill situation fixed?


thanks guys
Mutasem

SwayBar

That is easy, just check it first to see where on the dipstick the level is. You must follow the proper procedure to get an accurate result.

A valve guide/seal allowing oil into the cylinder.

nine9six

The leak down test as described previously, in the hands of a competent mechanic will tell him where the issue is located, and how/where to proceed next.

I would run from the current mechanic you are dealing with...

Drain some of the overfilled oil out via the tank plug, without pulling the plug out of the tank.
Hold the plug in place with your latex gloved hand and allow oil to gently drain into a clean catch pan. This way if you drain too much out you can pour some back in.

pp000830

To check oil consumption I would change the oil and make note of exactly how much oil I put in at time of change. I would then drive the car 500 ~ 1000 miles and drain the oil and measure what volume of oil comes out. In this way, you are not relying on the gauge or dipstick both being temperature dependent in their reading. Do not change the oil filters when testing or the after measurement will be off by the amount of oil retained in the oil filters.

Here is how I change oil on my car:

• On level ground I drain the oil tank and the engine case, and through the right rear wheel well,
• I replace both filters. I do not disconnect any tubes to attempt to drain the oil in the oil lines as my belief is that breaking the seals presents unnecessary leak failure modes. I do keep a can of electric motor cleaner on hand to clean off oil spilled on the engine and suspension when removing the smaller filter.
• I refill the oil tank with 8 quarts +/- of oil and run the engine to a fully warmed state looking to the temperature and oil pressure gauges to see if they have settled into their normal operating range.
• I then, with the engine running and HOT, I add additional oil, ¼ quart at a time until the
• oil level dash gauge settles at about midway with a fully warmed engine. I feel this method gives some additional margin of safety in avoiding inadvertently overfilling the system as well as additional status feedback as the needle is not pinned during operation but moves in relationship to how hot the oil is.
• The primary measurement of an oil fill is done with the dip-stick so I also look at it a well and note the position of the oil. If you decide to follow my measurement procedure and determining the fill with the dash gauge and you pull the dip stick and it is dry, it suggests your gauge is a bit out of adjustment. In such cases I would fill the oil to the mid-point on the dip stick range but not above.

NC TRACKRAT

Here's a direct question for the OP: Did you change the oil or did a shop? Whoever did it, did you/they just add oil until the gauge on the dash read "FULL"? We're all trying to help here and, IMHO, you've just got a classic overfill situation. Read the dipstick, not the gauge! If overfilled, don't drain oil by taking out the tank drain plug. Either use a MityVac pump and small diameter hose down the filler neck or simply drain the oil in the sump which is usually less than a quart.
I ran into a similar situation when I purchased the C2S. The dummies at the dealership (not Porsche) just filled it until they saw oil in the filler tank. I had to suck out about 1-1/2 qt. to get it to the right level. After that, no smoke.

flyingchappy

shadow993

Bwahaha!

mutasemb

Hello Folks,
It appeared to be a valve stem seal.
For a very low mileage vehicle, this should not happen.


thank you everyone for your feedback :-)

95_993

Its a 20+ yr old car. Regardless of mileage polymers breakdown over time.

Churchill

That is very, very unusual. How did the shop distinguish between valve stem seals and worn valve guides?

mutasemb

Hello Churchill,

will be changing the valve guides as well.

thank you
Mutasem