Why does my Porsche 911 have oil starvation problems?
As a result of the lower oil holding capacity and other factors, the M96/M97 engines tend to suffer more from oil starvation problems, particularly during high performance driving. There are a few things you can do to protect against oil starvation problems. Firstly, be sure that your oil level is always at the high-level mark of your dipstick.
Are there any mechanical problems with my Porsche 911?
Listed below are Porsche 911 common mechanical problems with their likely resolutions. These are the most frequent 911 problems diagnosed by our repair shops over the years. An accurate diagnosis of an issue by a Porsche mechanic typically saves you time and money – see our guide to local independent Porsche repair shops that can help.
What causes smoke at the start of a Porsche 911?
The smoke at startup can also be caused by a air oil separator (AOS) that is going bad but not completely failed yet. The M96 and M97 engines are famed for cylinder scoring – deep gauges in the cylinder liner, usually associated with a knocking noise and eventually catastrophic engine failure.
What happens when the air separator fails on a Porsche 911?
When this unit fails, the result is oil sucked out of the engine and into the intake. While the air-oil separator will not cause immediate mechanical damage to your engine, it may make it smoke tremendously and/or run roughly (see Pelican Technical Article: Porsche 911 Air Oil Separator).
What causes an oil leak in a Porsche 911?
A failing air oil separator (aos) is the likely cause of rear main seal failure and oil leaks, as it is in other VAG cars. Crankcase vacuum exceeds the normal range in the engine under heavy acceleration and sucks in air damaging the rear main seal.
What causes oil starvation in Porsche 911 Carrera?
In addition to the standard issues associated with the non-traditional sump system, the flapper windows on the bottom of the engine are manufactured out of plastic and can break off inside the sump and clog the oil pickup tube. This leads to oil starvation and complete engine failure.
When this unit fails, the result is oil sucked out of the engine and into the intake. While the air-oil separator will not cause immediate mechanical damage to your engine, it may make it smoke tremendously and/or run roughly (see Pelican Technical Article: Porsche 911 Air Oil Separator).
What are the most common problems with a Porsche 911?
The number one reported problem with the 911, the leak at the oil separator, cost owners an average of $88 to $111, although one owner complained his repair cost over $2,000. For over four decades, the Porsche 911 Turbo has been synonymous with relentless performance.