RennHarry

I was a little surprised to see the guy in the videos KrisA posted using a metal pick. Surely that has some risk???
Cheers

absoluteczech

nope it wont do anything

deilenberger

Really? A scratch on the back surface of a valve, or the valve shaft doesn't bring any risk with it?

And @professsorz - the 987.2 base models (2.9L) don't use direct injection and have hydraulic assist power steering. Sounds just like what you wanted..

Marine Blue

Personally I don’t think that amount of buildup after 100k is that bad at all. There’s no such thing as the perfect performance car, each and everyone one has some weak link. So every 100k we have the intakes cleaned off, honestly that’s fairly minor in the grand scheme of things.

derevis

Just to clarify- I never used the sharp point of the pick. Only the round hook portion, which was great at collecting and holding the tar-like carbon build up. In fact, it was almost impossible to get the sharp point of the pick to even make contact with anything inside there, given the geometry of the pick and the intake chambers.
I also found that a smaller bottle cleaner and my Sonicare toothbrush worked well too.

RennHarry

Thanks for clarifying. I have not yet been intrepid enough to look for carbon, let alone clean it, on any car I've owned, but was wondering about the use of a sharp pointy tool ... curvy backside only. Got it.
It's funny, my first thought was, what about a toothbrush.
After you pull out the largest chunks and get some clean happening, do you have a skinny vacuum attachment to get in there? I guess you could give it a blast of air too. But I'd want to get that stuff out of there via a vacuum if it was me.
Cheers

Four Ring Circus

That was quite a bit of carbon buildup in the OP pictures. Just curious- how long have you owned this car? How do you drive it?
I had an early DFI engine (2008 Audi A6 with the TT 2.7 V6). It saw a lot of city driving after I bought it CPO at about 1-2 years old. Eventually it had such bad buildup the car failed to start one day. The Audi tech basically said the way to prevent buildup was to redline the car somewhat regularly and the high RPM would often dislodge the buildup. (Made a good excuse to blast out of some toll booths or on ramps). Curious if this advice applies to modern DFI engines, and Porsche in particular.

sectachrome

Not sure about the carbon build up part, but if you're not regularly redlining your Porsche and getting into high RPMs anyway what's the point of owning one?

9eight7

Obviously, cars n coffee and the 'gram. It's best to avoid freeways and to keep it under 65 mph at all times. /s