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I finally bought my first Porsche! A day of joy, have been looking forward to it for a long time.
The car I have bought, the 996 C4 2000 model, is known to have its weaknesses. My car has damage in cylinder 6, and it also has some small scratches in cylinders 2 & 3. See attachment.
The car has driven a total of 186xxx. Got a new engine in 2004 at km 57xxx. In other words, the engine has 129xxx km.
I'm not nervous about cylinders 2 & 3, I consider this to be normal wear and tear. Cylinder 6, on the other hand, I'm a little more unsure about. After all, this is the cylinder that tends to get heated, and therefore takes a little more beating.
I don't know if the damage is old or new. I also know that it is quite possible to drive many kilometers without any more problems. I also know that the engine may fail tomorrow...
My plan is to avoid extreme loads on the engine. Of course you have to have fun with it, but you don't need to red mark it all the time... I have equipment to re-inspect the cylinder. I was thinking of doing this in 4-5000 km to see if the damage develops anything.
My plan is to avoid extreme loads on the engine. Of course you have to have fun with it, but you don't need to red mark it all the time... I have equipment to re-inspect the cylinder. I was thinking of doing this in 4-5000 km to see if the damage develops anything. What would you have done in my shoes?
The low resolution images make it hard to see fine detail, but... IMHO, cylinders 2 & 3 - normal scuffing of the cylinder wall. Cylinder 6 appears to have some pitting probably caused from FOD like carbon off the piston. Not severe ether. I would recommend start running oil like DT40 with higher levels of moly. If you feel it's going to cause you to lose sleep until you get a clean bill of heath, get the engine fully inspected - rough running index, compression tests, camshaft deviation, vacuum manometer test, fuel trim, emissions readiness, check coolant for intermix, oil analysis, drop the sump for inspection, etc.
The low resolution images make it hard to see fine detail, but... IMHO, cylinders 2 & 3 - normal scuffing of the cylinder wall. Cylinder 6 appears to have some pitting probably caused from FOD like carbon off the piston. Not severe ether. I would recommend start running oil like DT40 with higher levels of moly. If you feel it's going to cause you to lose sleep until you get a clean bill of heath, get the engine fully inspected - rough running index, compression tests, camshaft deviation, vacuum manometer test, fuel trim, emissions readiness, check coolant for intermix, oil analysis, drop the sump for inspection, etc.
thank u for good informative response. I did not thought about possible fod inside the sylinder.
05-05-2024 | 06:16 PM
Cylinder damage
