|
|
|
|
| Author |
|
|
Guest
Posts: n/a
|
Clutch-Transmission Question/Help!
Hi everyone,
When I first got my 911 (915 trans) out on the road a few days ago, I noticed that the clutch friction point was low, about in the middle of the pedal travel, and I could not downshift from 4th to 5th (it just grinds.) 3rd to 4th and 4th to 5th are fine. I followed the directions on the Pelican article for clutch adjustment. The friction point for the pedal now is near the top, however, things still feel a little funny with the transmission. Im now having a hard time getting into 1st and sometimes 2nd too. The problem from 5th to 4th remains. It seems as if the clutch is not totally disengaging, although when I did the adjustment the travel of the arm at the trans. was exactly 25mm as per the article. The clutch does not slip or display any strange behavior. Please let me know if any of you have had experience with this and/or if you have any suggestions. I am going to adjust the shift linkage today and see if that makes a difference. Should I just replace the cable and helper spring? My records indicate that the entire clutch and cable were replaced 35K ago. Thanks alot for your replies! Nick. ------------------ __________ Nick Shumaker 1982 911SC Coupe |
||
11-26-2000, 09:46 AM
|
|
|
Guest
Posts: n/a
|
I did both adjustments on mine per Pelican. The clutch and linkage adjustment. Both helped. Also remember the Swepco 201. If 4th and 5th are grinding sounds like a linkage thing to me. Good luck.
|
||
|
11-26-2000, 10:30 AM
|
|
|
Guest
Posts: n/a
|
Ron,
Pardon my ignorance, but what is the Swepco 201?? Thanks Nick. ------------------ __________ Nick Shumaker 1982 911SC Coupe |
||
|
11-26-2000, 11:52 AM
|
|
|
Guest
Posts: n/a
|
Nick,
Swepco 201 is the best gear oil on the planet for 915 and other Porsche transaxles! If you have read Excellence, Bruce Anderson is the technical editor and formerly associated with Garretson Enterprises back in the '70's and '80's ... he used to race 935's at Le Mans (and other places) and has said that changing to Swepco 201 in the 935's made a ring & pinion set go from lasting 40 hours in competition to lasting an entire racing season! If your clutch is not completely disengaging, shifting into reverse will grind every time! Every timr, no exceptions!!! If it has been more than five years since that clutch cable was changed, then yes, by all means change it, and be sure to lube thoroughly with a moly grease like Swepco 101 before installation! ------------------ Warren Hall 1973 911S Targa |
||
|
11-26-2000, 01:48 PM
|
|
|
Guest
Posts: n/a
|
I have tried to explain an important aspect of clutch adjustment and I'm gonna make you go Search for the long explanation. it's back there a couple of months.
Anyway, the horseshoe spring, under the engine goes 'over the top' very near the top of the pedal. IN other words, the horseshoe spring pushes the cable toward the clutch pedal at the top. then, when you push the pedal, you can feel it go 'over the top' in the first inch or so, and now it will be pushign the other way. To do this, you unhook the cable at the engine, use a screwdriver to pry the clutch arm so it snaps forward, hitting the exhaust cross-piece. After this, you just follow the regular clutch adjustment procedures. You might need to new horsewhoe spring. Anyway, go hunting for those earlier explanations. I replaced a clutch that probably did not need it because I did not now this secret. ------------------ '83 SC |
||
|
11-27-2000, 08:41 AM
|
|
