LAT

I brought my car in for an early oil change, 3,000 Km (old school) and the tech forgot to drain the crank and overfilled the engine. There was smoke everywhere by the time they figured it out and the result wa to redrain and refill both and an emberassed tech.

The mechanic said there would be no long term effects is this true.

I have never seen this happen in my 20+ years of owning Porsches.

intouch1

if it did not run for too long you should be fine. otherwise, it will blow out the seals and gaskets....

good luck.

TT Surgeon

Should be ok, make sure it's documented on the svc record, I'd also crank off a letter to PCNA just to have something on file. Total BS, this ain't no boxter!

Zipgun

Agreed make sure everything is on record. Tech guy was probably alseep. A f***up like that shouldnt happen at all, regardless of make or model...

99firehawk

blowing out seals and gaskets do you have any idea how an engine works?

most shops use over head line oil now thats measured by a computer, if the computer makes a mistake you dont know it untill after you start the car. being that its a turbo you have to warm it up to check the oil there is no dipstick.
If the car runs fine now then you will never have an issue. its not a maybe casued damage or longterm side effects kind of thing, its a O my motor stopped and now it wont even turn over kinda thing

intouch1

what i wrote is absolutely right......

- either it was ok, i.e. it was not cranked when the overfilled oil was in it

- or if cranked and running with oil overfill, the increased pressure will blow the gaskets and the seals and the motor needs to be taken apart....

if i may correct you, it has nothing to do with it being a turbo. 911 Carrera does not have a dipstick either and as we all know, its naturally aspirated.

only difference is that the turbo engine is a dry sump design, whereas the Carrera engine is a wet sump (oil pan and pickup) design.

motor should be warmed up before checking oil level (dipstick or not) because the oil expands when warmed up and you would get a wrong reading if the engine is col and would overfill.............

hope this helps....

99firehawk

how does voume increase pressure?

intouch1

re: your previous post, I assume you might not know that its a closed curcuit with a min and maximum pressure threshold. put in too much liquid volum and you have oo much pressure. valves and gaskets give way.

correct me if i am wrong

Terry Adams

Larger volume of oil has to fit into the same space. Many analogies, but the good old toilet plunger comes to mind.

99firehawk

the system is not "sealed" you didnt have to presurize the oil to get it in the case

intouch1

there is a clear and obvious diffeence between sealed and closed.......LAT asked for input and not smart talking........

99firehawk

im only correcting misinformation

bottom line to much oil is not going to blow gaskets and seals

and im done with this thread

intouch1

then kindly explain what it will do to the engine and why its harmful ?

99firehawk

its only harmfull if the engine stops due to oil in the cylinders, thats called hydro lock, fluids dont compress and something has to give, usually pistons or cylinder liners or rods. That is something that happens instantly , not later so if the car is fine now then theres no damage.

OldGuy

If fluids dont compress then guess what does? the gas, thats how your pressure goes up, if it goes up high enough then guess what gives?