911 SC 3,0 Carrera Targa
MY 01/79
colour white
I bought the car about 6 months ago from a friend who left Germany for good for Norway. As car taxes over there are extremely high, especially for what they regard luxurious cars, he decided to sell.
When I first saw him with his garage found two years ago I told him not to sell it to anyone but me, if he had to sell.
So now I am a proud owner and driver of that beauty (at least that is what I think).
Driving got difficult after one week, as the gearbox refused to operate only after 200 km driven - being a car guy I thought to myself so what - let´s diy this. Little did I know about Porsche (I am heavy into Offroad driving incl. proffessional trophys) and even less about the hidden miracles of the Sportomatic. So reading and learning about this piece of high tech of the late 60´s and 70´s I decided to search for specialists on Porsche to help me mending the gearbox/sportomatic problem. Only to find out, that they are a very rare species, even in the homeland of Porsche. So many experts turned me down, when I mentioned the sportomatic, that I had moments of doubt whether to stick to it or change it to an ordinary gearbox.
But I was lucky - sometimes the solution is nearer than you think - I found a car mechanic in the next village who is a Porsche enthusiast but does not show. He liked the idea of repairing the gearbox problem and while he was on it mend it so it got oldtimer registration (which is a difficult thing in Germany).
So now I drive my little white beauty as a daily driver in the dry months of the year and I couldn´t be more happy. Except for the targa roof, that still needs mending. And a little problem I still try to find the cause:
When driving long stretches and the oil getting to hotter temperatures the gear shifting sometimes results in high revs and no or little clutch engagement at first. A little push on the gas pedal mends that problem and everything is fine again. This only happens at higher engine temperatures. Anyone has a guess where to look first? Vacuum problems I doubt, as they should have nothing to do with the engine /oil temperature. Oil visocity I doubt too, as I drive 5W40 oil, recommended by Porsche itself.
Due to older manuals there is a screw underneath the air filter housing that adjusts the responsiveness of the clutch - I will give that a try. Unless someone here has a suggestion - so please fire away whatever you think.
Glad I found you lot here - regards from Munich, Germany
Holger alias Zorro
sorry, forgot the registry
sorry, forgot the registry no.
9119310624
Hot engine oil
Hello Holger,
Try to take the car onto a lift, and get beneath it. Get you flashlight and see if the cluch plate is covered in oil. When I bought my car, this was the problem, and I had to take the whole engine and cluch out. I replaced all the barings and sealings, and no it is no problem.
PS: It is sometimes difficult to see the cluch plate, but it should be nice and dry and no trace of oil..
Good luck!
Morten
Hi Morten, thx for your
Hi Morten,
thx for your reply. Unfortunately I re-did all bearings/sealings etc. while mending gearbox problems. Motor was out, clutch inspected - everything was fine. After refitting everything, there was a small oil leak on the gearbox, but that is mended too. It is actually not the clutch that causes the problem, rather the process in re-engaging the clutch after gear change is slow. with a little push on the gas pedal it works fine, but especially when driving out of a narrow park space that is a "risky" manouvre to say the least. somehow my guesses go direction vacuum - but i cannot see, how temperature could influence that negatively.
so glad for any other suggestions
regards holger
clutch re-engaging after gear change
RE: there is a screw underneath the air filter housing that adjusts the responsiveness of the clutch - I will give that a try. Unless someone here has a suggestion - so please fire away whatever you think.
yes wind that screw out and the clutch should engage alot quicker during gear changes