Speedtoys

No way. We'd eat him up.

He'll be too busy in between shifts calculating stuff like this.




But we can buy him a burger, once he catches up.

Mark Anderson

Depends on which Mark you invite. Not all Marks drive "flat out"

Speedtoys

Sorry, I was referring to Rev. Kibort.

blown 87

Bill Ball

Bill: If your symptoms are really the same as mine, and it sure sounds like they are, I would look at what the Bowden cable controls, which is the pressure control valve in the valve body. Since a valve body rebuild is part of a total rebuild, you would be covering that portion by installing a rebuilt valve body now. They are not horribly expensive and the swap can be DIY. It seems to me there's a good chance it will fix you up. Getting the Bowden cable working sure fixed mine.

supercedar

Sounds like the bowden can be loosened a couple turns only and it will want to shift to 3rd. When it kicks down to first at lets say 1/4 throttle the bowden is to tight.
Thomas

Speedtoys

Ya..since my new tranny install, mine wants to downshift just a RCH too quickly, and upshifts a bit harsh.

Will go turn the modulator (which is new) back maybe 1/4 turn, and losing the bowden an RCH as well.

Podguy

I found with the Bowder cable when it is too loose the transmission willl do funny things. Disconnected it is a crap shot at best.

There is a trade off. When adjusted to allow WOT the treans is a little lazy. You can improve around town performance by adjusting the cable tighter. The preformance will improve but at the cost of not getting WOT. I found this preferable on my 85 for all around driving.

If you hot wire the kick down switch then the trans is going to act weird and not shift up correctly. The kick down solenoid can get stuck and give some of the symptoms you are experiencing with up shifts. For some reason it seems to get locked in place.

Bill Ball

Jeff: Check the Bowden cable. The standard condition is for it to have no tension or slack - if you pull the socket head off the throttle arm it should be perfectly lined up. Full throttle harshness would point to the modulator adjustment. Partial throttle harshness would point to the vacuum. If the vacuum modulator is broken or, more likely, the line is not attached at either the front or the rear, that's what happens. Mine is dead-on perfect. The only issue now is what appears to be LSD chatter, which I will deal with when I replace the cover by changing the fluid to include some standard 75-90. [NOTE: LSD should get 100% regular 75-90W Redline or Mobil 1 LS.]

BTW, I agree with Dan about hotwiring of the kickdown. I tried it and I didn't like the tranny behavior at all. I prefer to row the shifter to whatever gear I want. I've been doing that since I got the car. It only sits in D when I'm cruising down the freeway. It seems that this exercise is good for the tranny.

Mrmerlin

FWIW on bowden cable adjustments ,
usually turning the cable end 1/4 turn when things are close is enough to make changes that you need.
IE put the ball cup on with no tension to the arm stud then test ,
then turn the ball cup in a 1/4 turn eventually you will find the sweet spot

NOTE make sure the throttle cable is adjusted first as loosening the throttle cable will in effect tighten the Bowden and vica versa this is for the S4 and later cars

Bill Ball

Man, my tranny is back to its old, tight self. The car put a big smile on my face as I blew down the road to a doctor's appointment. The LSD definitely chatters in slow turns, like parking lot maneuvers. Just need the speedo function back, and it's all good again.

Speedtoys

Bill:

This is great news.

Now..if we can get MarkK and others to go after this guy..


http://community.discovery.com/eve/f.../m/90119242011


We can get some _pretty_ 928s on TV.


Also: You wanna met at Jim Morton's shop sunday afternoon? Thought 'might see what the rollers say right now before the next round of small changes to the system.


All cut & dried to him...zero other factors.

Bill Ball

Jeff: If you have appointment for Jim's rollers, I'll be there. I probably should throw mine on as well, if Jim has time, as I have a cam change planned.

Speedtoys

Bill:

Jim is confirmed at 3pm at his shop.

DO you still have a ST2 that can read my PEMs on the square plug? Jim only has a ST1.

Bill Ball

Nope, no ST2.