Why does my Porsche 911 make a knocking noise?
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. The root cause of this issue is open to discussion, however, wear in the piston rings and liners causes the piston to wobble.
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.
How can I tell if my Porsche 911 has a problem?
An early telltale sign can often be one exhaust tailpipe being more sooty black than the other. The sound of this problem is not a tick like a bad lifter, it’s more a rhythmic knock and usually shows up first on the passenger bank of the flat 6 engines.
What kind of engine does a Porsche 996 have?
Results from this can be fun – we made 425HP from a 4.0L engine rebuilt from a broken 3.6L – however, you’re going to need a $25K budget to start the project! M96 engines fitted to the 996 and early 997 can have issues with a bearing at one end of the intermediate shaft. The shaft connects the two ends of the engine timing gear.
Why does my Porsche 996 refuse to start?
I purchased a porsche 911 996 year 2000 I dont have the remote control only was given the key. Im having problems starting the vehicle, I have power to the starter and I hear the click of the carborator opening an… Jump to content Existing user? Sign In Sign In Remember meNot recommended on shared computers Sign In Forgot your password?
When did my Porsche 996 series come out?
November 7, 2009in 996 Series (Carrera, Carrera 4, Carrera 4S, Targa) Share Followers0 Start new topic Recommended Posts atwal870
Why is the clutch not working on my 996?
If you have shorted the clutch switch, you know thats not the issue. Check the relay, it doesnt cost anything to check, then I would buy and replace the ignition switch. If that doesnt work its going to get more complex as the next thing, I beleive (but am no expert by any means) is the security system comouter or ECU….or maybe a broken wire.
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. The root cause of this issue is open to discussion, however, wear in the piston rings and liners causes the piston to wobble.
An early telltale sign can often be one exhaust tailpipe being more sooty black than the other. The sound of this problem is not a tick like a bad lifter, it’s more a rhythmic knock and usually shows up first on the passenger bank of the flat 6 engines.
Why does my Porsche 911 have a vacuum problem?
Crankcase vacuum exceeds the normal range in the engine under heavy acceleration and sucks in air damaging the rear main seal. This is commonly seen on Audi engines as well.
Results from this can be fun – we made 425HP from a 4.0L engine rebuilt from a broken 3.6L – however, you’re going to need a $25K budget to start the project! M96 engines fitted to the 996 and early 997 can have issues with a bearing at one end of the intermediate shaft. The shaft connects the two ends of the engine timing gear.
What causes the piston to wobble on a Porsche 911?
The root cause of this issue is open to discussion, however, wear in the piston rings and liners causes the piston to wobble. The wobble occurs at the bottom of the stroke and results in the piston skirt dragging against the cylinder wall thereby scoring the liner.
What causes wind noise in Porsche Carrera convertible?
The plastic rear window on these cars can also be a source of leaks and wind noise. The older style windows are held in place by a zipper on the inside (green arrow), while the newer style are just glued in at the factory.
Why is my Porsche 911 top not working?
If you are having problems with your top, there is a chance you could just be low on hydraulic fluid. Sometimes simply adding fluid to the system can get it working again. Additionally, the fluid in the reservoir can go bad, especially if there are leaks or contaminants, causing the system to work harder.
Why is my Porsche Carrera convertible top leaking?
The first step is to observe the convertible top when up and driving. Has it become louder over time? Are there leaks when it rains? One of the most common problems with the top is the inner soft fabric headliner separating from the outer, heavy fabric top. This is due to age and temperature.
How to repair a Porsche 911 convertible top?
If you are repair an area that will not be held together under tension you can use a couple of paint stir sticks and a few C-clamps to hold the two pieces together. Do not use any heavy industrial cleaners or strippers without first double checking on an inconspicuous area to make sure they will not mare or damage your top.