"Your valve guides are worn"
11-03-2006, 01:51 PM
#31
Burning Brakes
Valve guides have been the 911s achilles heel since the beginning. It's only the advent of the post '96 SAI CEL that has alerted owners to the very earliest signs that the valve guides might just be STARTING to wear a little. In the old days you could simply decide for yourself that the billowing blue smoke, cacophonous clatter coming from the valvetrain and an oil top up every morning were trying to tell you something.
11-03-2006, 02:06 PM
#32
Race Director
Originally Posted by Matt Davies
Valve guides have been the 911s achilles heel since the beginning. It's only the advent of the post '96 SAI CEL that has alerted owners to the very earliest signs that the valve guides might just be STARTING to wear a little. In the old days you could simply decide for yourself that the billowing blue smoke, cacophonous clatter coming from the valvetrain and an oil top up every morning were trying to tell you something.
11-03-2006, 03:20 PM
#35
Rennlist Member
Originally Posted by 2ndof2
...That sure seems like alot of oil consumption for only 621 mi. Whats that, roughly 3/4 of a quart of oil for every tankfull of gas?...
But the P-car is different, as everyone knows, and you can obviously get away with running a bit leaner. A good ratio is anywhere from about 1:80 to 1:225. Since my tank holds 85 liters, I stick to 1:85 and buy the 1-liter bottles of oil for the convenience factor.
11-03-2006, 03:33 PM
#36
Three Wheelin'
Originally Posted by murphyslaw1978
Most people don't realize that you can pre-mix the oil directly into the gas tank at fill up. That's what I do on my 2-cycle Honda sport bike. The engine came with an oil injection system, but many people remove the system and then run "pre-mix". The mixture should be anywhere from about 1:30 to 1:50 (oil/gas ratio). The 1:50 is about as lean as you should go on the bike without risking premature engine failure.
But the P-car is different, as everyone knows, and you can obviously get away with running a bit leaner. A good ratio is anywhere from about 1:80 to 1:225. Since my tank holds 85 liters, I stick to 1:85 and buy the 1-liter bottles of oil for the convenience factor.
But the P-car is different, as everyone knows, and you can obviously get away with running a bit leaner. A good ratio is anywhere from about 1:80 to 1:225. Since my tank holds 85 liters, I stick to 1:85 and buy the 1-liter bottles of oil for the convenience factor.
11-03-2006, 03:39 PM
#37
Weathergirl
Rennlist Member
Rennlist Member
Nope. That's now part of the permanent archives. Some new owner will be thinking, "hmm, what to do about the oil consumption?" run a search and end up calling Autozone looking for Mobil1 two-stroke oil. 
11-03-2006, 04:09 PM
#38
Three Wheelin'
Thread Starter
What?????? Oil in the gas tank????? C'mon.....why would I ever do something that crazy? This is a Porsche 993 motor not an outboard motor!
I think I'll stick to adding oil in the oil filler and fuel in the fuel filler thank you.
I think I'll stick to adding oil in the oil filler and fuel in the fuel filler thank you.
11-03-2006, 04:49 PM
#40
Drifting
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Originally Posted by murphyslaw1978
Most people don't realize that you can pre-mix the oil directly into the gas tank at fill up. That's what I do on my 2-cycle Honda sport bike. The engine came with an oil injection system, but many people remove the system and then run "pre-mix". The mixture should be anywhere from about 1:30 to 1:50 (oil/gas ratio). The 1:50 is about as lean as you should go on the bike without risking premature engine failure.
But the P-car is different, as everyone knows, and you can obviously get away with running a bit leaner. A good ratio is anywhere from about 1:80 to 1:225. Since my tank holds 85 liters, I stick to 1:85 and buy the 1-liter bottles of oil for the convenience factor.
But the P-car is different, as everyone knows, and you can obviously get away with running a bit leaner. A good ratio is anywhere from about 1:80 to 1:225. Since my tank holds 85 liters, I stick to 1:85 and buy the 1-liter bottles of oil for the convenience factor.
hmmm...oil mix into a 4-stroke...
Let's see...
...it will sure hasten an SAI problem
...one still needs oil on the bottom end
...would love to see your spark plugs
that is one way to cover up a valve guide problem..."ohhh it just smokes like that cause I use an 85:1 mixture"....
11-03-2006, 04:56 PM
#41
Rennlist Member
Yes, I am kidding. I thought I would add a little humor, since I find that "up to 1.5L per 1000 km" is already quite humorous. Seriously - I can't believe Porsche is for real about this level of oil consumption...
11-03-2006, 06:24 PM
#44
Rennlist Member
I'm not going to joke about race, religion, disfigurement, deformity, disease, the death penalty or abortion. But I will joke about cars!
11-03-2006, 09:00 PM
#45
Rennlist Member
Originally Posted by murphyslaw1978
Yes, I am kidding. I thought I would add a little humor, since I find that "up to 1.5L per 1000 km" is already quite humorous. Seriously - I can't believe Porsche is for real about this level of oil consumption...
