De-carrbonizing 997 engine.
#16
Henry its apparent from one of the other posts that you like to work on your car and replace parts that dont need to be replaced (brakes/clutch etc) but you seem to be creating another issue thats not an issue. Several people have asked why you want to do this but you havent answered the question. Your Porsche is not a BMW. Can you elaborate?
Yeah, I know, I enjoy working on it. Have to control myself here, or get some help from a shrink :>)
#20
Henry, you need to buy a BMW so you have something to work on that actually needs it! You can buy a nice previous gen 335i and have all sorts of fun with upgrades and such. I just did a new inter-cooler, down pipe and charge pipe. I wanted to do walnut blast but told it didn't need it for another 20k - 30k miles. Oh well!
#21
Henry, you need to buy a BMW so you have something to work on that actually needs it! You can buy a nice previous gen 335i and have all sorts of fun with upgrades and such. I just did a new inter-cooler, down pipe and charge pipe. I wanted to do walnut blast but told it didn't need it for another 20k - 30k miles. Oh well!
#22
#25
My DD is a BMW 328I. BMW's older generation were very pleasant to work on. Their newer and current cars are a real pain to work on. Pop the hood and everything under it is plastic and it will break if you so much as look at it, let alone work on it. I had a BMW E30, back in ions and that was a weekend mechanics dream. I should have kept it, rather than donated it for tax write-off after accumulating over 1/2 million miles. Luckily Porsches are still great cars and a joy to work on even though parts are more expensive. BMW as well as Mercedes are now disposable cars and their resale value reflect that.
#26
And by the way, here it is, and it is a sticky, so I don't know why some would say it is a never heard of problem...… https://rennlist.com/forums/997-foru...oil-usage.html
#27
And by the way, here it is, and it is a sticky, so I don't know why some would say it is a never heard of problem...… https://rennlist.com/forums/997-foru...oil-usage.html
#28
Honestly, no ! I just knew that this subject was raised before, So when I saw it as a sticky, I just shared it without going through it. So if it is a non-issue as you say, maybe it shouldn't be a sticky.
#29
Yes, cleaning is useful, but not required @100k miles. Buildup at valve rim edge is (in my opinion) significant if you want optimum power and smoothness.
Intake treatments do not work (I tired a few).
Walnut blast is what I found to work.
3 photos , before, mid cleaning, after.
Intakes removed, engine in car (987.2).
Intake treatments do not work (I tired a few).
Walnut blast is what I found to work.
3 photos , before, mid cleaning, after.
Intakes removed, engine in car (987.2).
#30
Peace
Bruce in Philly