over fill oil leak question

[the911Tprocess]

I've wanted to ask this question for a long time so here goes.

I've got a 72 T.

If (this is hypothetical) I would over fill the reservoir where would the oil leak out?

Thanks

[MBEngineering]

HI I would say the exhaust tail pipe, intake breather hose and the valve guides, poss' not in that order. Unless you are looking for a leak??oil leak that is?

regards mike

[911pcars]

Crankcase pressure will force excess oil through the breather hose and into the air filter housing. There, it will puddle and be drawn into the intake as per Mike's post or it will drip onto the ground via a drain tube (early air filter housings anyway).

High g loading will exacerbate this situation, especially with a full tank.

Sherwood

[911s55]

[QUOTE=the911Tprocess;3671425]
If (this is hypothetical) I would over fill the reservoir where would the oil leak out?

I know this guy, it's not me though!

[the911Tprocess]

Guys,
thanks for your opinion, I think thats whats happaning.
I'm going to change the oil and refill to proper level.
What I mean is I'm talking about a friend, yes a friend of mine who over filled the tank.

[the911Tprocess]

If this was happening would the droplets of oil on the floor appear just below the joint between the engine and the transmission?

Would it leak more while driving or after sitting after driving.

[911s55]

Does it need to be changed, how many miles or time and what type are you using?

[the911Tprocess]

Hi,
I was suggesting to change the oil because I thought it would be very hard to take the drain plug out and put it back in without making a real mess. I'm good at that.

The current oil that is in the car is mobil 1 20/50 synthetic.

[911s55]

Mark, if you drain JUST from the motor and NOT the tank, then run the car to operating temp to see how much to add. Not sure of the oil tank capicity + cooler on an SC, but got to be 6 or 7 quarts, that won't get tossed out.
Fill to between the marks on the dipstick, not to the top line.

[EarlyPorsche]

You can just drain the block which will be a couple quarts. Then run and check the oil. Then you can add as needed. Remember that you need to be between full and empty on the stick and not at full.

[3.2 CAB]

Mark, you are correct about not letting your "friend" just drain some from the tank, it will go everywhere. If the tank has any drained from it, it should just be emptied, then re-filled to the correct level. If there is a clean container that can be used, I would certainly go ahead and dump the tank. I have several of the big round black, fluid drain containers, and also some of the yellow ones just like the black ones, but with a larger hole on top . I have 2 of the black ones dedicated for clean oil only, and (for non 911 usage) a couple of the yellow ones for clean coolant only. That way I can put the clean fluids back in after the servicing. I actually had to do this one time not long after buying mine back in 1997, I found out what too much oil will do, I learned from that experience. Good luck!!

[911pcars]

Fumoto ball-type drain valve is good for this and to replace factory drain plugs that tend to weld themselves in place.



Sherwood
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