Long story long here:
I mostly completed my Crown Corvair 6 years ago but put it on the back burner because of a non slipping posi and terrible shifting. Thanks to Chuck Rust for steering me on to Redline transaxle fluid and now the posi is slipping a wheel while tight cornering.
Now I've got renewed interest in the car. I go and drive it and I'm grinding gears trying to get into first or reverse. I got stuck a mile from home and could only get 3rd gear to engage so I had to abuse the clutch to get it home.
Rick Andersen commented that I probably needed more clutch engagement so I went and lengthened my pedal to master cylinder rod about 1/4". Problem solved! I took it for a cruise and 20 mins later I was grinding gears again. Humm?
I decided to jump up from my 3/4" bore Tilton master cylinder to a 7/8" bore Tilton. A lot stiffer pedal but it finally shifted well again. Take it for a spin and it's grinding again in 10 mins of driving around town. I vacuum bled it again and find no bubbles. I had someone push the pedal down while I watch the Quarter Master street hyd throw out bearing and I'm getting around 1/4" travel but the inside bore of the cylinder is wet with brake fluid. I puddle forms under the bellhousing now, but it doesn't drop the master cylinder level much. Humm?
I called Quartermaster and learned that I need the 3/4" master cylinder with Dot 3 instead of Dot 4. I ordered a seal kit to rebuild the throw out bearing from them.
When I'm under the car I can turn the throwout bearing's engagement face by hand but there doesn't seem to be any free play between the Center Force street pressure plate and the clutch fingers. I guess the fingers extend when you wear the clutch disc down and take up your free play?
Now I'm ready to tear the transaxle out and rebuild the throw out bearing but thinking I'll do all this work only to land with the same problem I had initially - grinding gears while running.
Couple things I haven't done: put in a pedal stop and check my pedal ratio....I hear it's supposed to be 6 to 1.
To cover all my questions on this I have a little more.......
I'm running a hydraulic throw out bearing but after this feasco I'm thinking a hyd external slave cly might be the way to go. I created my own problem with that by running a big NASCAR oil cooler with huge 1" lines coming from an oil filter adapter plate.
I would have to remove all of that stuff (it looks trick) in order to have the standard mechanical clutch pivot arm w/ a slave cyl. If so, what slave cyl and bracket configuration do you suggest. Trick looks ain't sheet if it don't work.
I'm very open for suggestions. I have 6 trick cars and everybody is drawn to the Corvair as their favorite. I can't even give people rides in it as I'm embarrassed by the shifting.
Thanks for any advice,
Roger