shift coupling adj. what am i missing

mickster8888 · 06-26-2011, 01:35 PM

trying to adjust shift coupling so it does pop out of third. i get it adjusted so i get 3rd fine then i have trouble with 2nd not engaging all the way. right now its adjusted where eveything is fine most of the time but still every once and a while 2nd oesn't engage fully. 3rd seems to be fine. i notice that sometimes i feel it click when it engages and that's when it fully engages. nice clunk into 2nd and 3rd. then sometimes it feels vague but still engages and does not pop out. is it that this adjustment is that critical? btw, i have a 930 4speed with wevo shifter and coupling, and new plastic bushings. any advise would be greatly appreciated. thanks in advance, mick

gregwils · gregwils's Garage

I'm not sure about the wevo, but the normal procedure is to put the transmission if first gear. Hold the shift lever forward and as far toward the drivers knee as possible. At the same time, turn the coupling toward the passenger side and tighten it down.

Flat6pac · 06-26-2011, 01:46 PM

Manually load reverse into the trans. With the swivel loose place the shifter where reverse should be. Lock the swivel and now you should be good to select the gears you need. A very fine line between in and not in but the reverse always works for me.
Bruce

enzo1 · 06-26-2011, 01:47 PM

yeah, went through the same as u, until I had the same advice, all is well. takes little adjustments...

mack6820 · 06-26-2011, 04:15 PM

If its popping OUT of gear, you might have synchro issues. I just had to have mine rebuilt for this reason.

mickster8888 · 06-26-2011, 05:08 PM

mack6820, it only pops out when it oes fully engage. if it were a synchro issue wouldn't it do it all the time? i don't know which is why i'm asking. it's just weird that it does it only some times. i can feel it make a nice clunk when it engages and i know it won't pop out when i get that positive clunk. the problem is when i adjust it so 3rd engages good 2nd gives me a problem and viceversa. i've been tweeking it alittle bit and it seems like it is very close. i'm assuming that if it is an adj. problem it would be a for and aft adjustment as i get all the gears pretty good. hope someone can solve this as i'm getting played out. i'll try to fiddle with it some more. it almost seems like there is too much fore and aft movement in 2nd when it is adjusted to get 3rd properly. is there anything internal that can loosen and give me that kind of play?

mack6820 · 06-26-2011, 05:52 PM

Well I had the problem with 1st gear. Sometimes it would pop out and sometimes it wouldnt. The "clunk" sound worries me too. If you cant get the adjustment right, I would have a Porsche mechanic look at it.

Walt Fricke · 06-26-2011, 08:10 PM

If you didn't have the WEVO coupling, I'd suspect the bushings on your stock coupling were worn out.

Does the WEVO use the stock plastic ball end bushing where the lever drops into the long shift rod's cup end? If so, maybe that is worn out.

Either way, it sounds like you don't have quite enough fore and aft travel.

CCM911 · 06-27-2011, 06:13 AM

Don't give up. It took me a bunch of tries to get it right. Remember, you are dealing with Fore/Aft as well as Right/Left. Just make small moves and you will eventually get it right. It is very frustrating, but if I can do it anyone can.

Stan Gillis · 06-28-2011, 10:15 AM

I agree with CCM911 reply. I just went through this shift adjustment as well. The only other thing I would add is, check your shift bushings as well. Have patient and you can do it.

mickster8888 · 06-28-2011, 04:21 PM

thanks guys. i did replace the plastic shift bushing so i know that's not it. i've fiddling around and it seems like i'm getting pretty close. hasn't popped out of any gear so far. i keep the wrenches in the car just in case. i can't believe how finicky this adjustment is. the clunk i was refering to is just how it feels when the gear is totally engaged. when i feel this i am certain it is good. sometimes i don't get that feel and it's alittle vague but still doesn't pop out. i'll keep messing with it as i think i'm heading in the right direction. thanks everyone.

Bill Verburg · Bill Verburg's Garage

Quote:

Originally Posted by mickster8888

thanks guys. i did replace the plastic shift bushing so i know that's not it. i've fiddling around and it seems like i'm getting pretty close. hasn't popped out of any gear so far. i keep the wrenches in the car just in case. i can't believe how finicky this adjustment is. the clunk i was refering to is just how it feels when the gear is totally engaged. when i feel this i am certain it is good. sometimes i don't get that feel and it's alittle vague but still doesn't pop out. i'll keep messing with it as i think i'm heading in the right direction. thanks everyone.

Are you sure the clamp is still holding properly. I had trouble after installing all new components, turned out to be the clamp that allowed the adjustment to drift w/ use. I replaced the clamp w/ a Wevo version

Stan Gillis · 06-29-2011, 03:45 AM

Keep at it, you can do it. Sounds like your almost there. Good luck.

70S Targa Guy · 06-29-2011, 06:25 AM

Quote:

Originally Posted by Bill Verburg

Are you sure the clamp is still holding properly. I had trouble after installing all new components, turned out to be the clamp that allowed the adjustment to drift w/ use. I replaced the clamp w/ a Wevo version

+1
Mark the position of the coupler on the splines and go through the gears (car not running) and see if you see the coupler changing its orientation/position inside the shift rod. That clamp has to be super tight or else you will experience the problem you seem to be describing.

mickster8888 · 06-29-2011, 07:16 PM

i'll definately keep an eye on the position of the coupling. took her out tonight and everything was fine-no popping out of any gear. thanks for all the tips. i greatly appreciate the help.

Laneco · 06-29-2011, 07:49 PM

Don't overlook transmission mounts... We had all new bushings and proper adjustment on the linkage in Steve's cabby but little odd things starting popping up. It would "thunk" and pop out of 3rd, a little off with engagement etc.

I was fiddling and realized that the mounts were bad. I actually thought the motor mounts were bad, so I replaced those but they looked pretty good. when I got to the trans mounts (I had all four for the swap), I was apalled. The transmission was actually sitting on the swaybar. I swapped them out and with a standard minor adjustment, the shifting is better than ever.

angela

Stan Gillis · 06-30-2011, 03:55 AM

I knew you could do it.