Lenco Clearance

I run a three speed lever shifted CS-1 Lenco. I have some free travel in the high gear shift tower which results in about an inch of slack in the shifter. I set the tower at about 40 lbs but still have the slack. I have tried setting up the clutch pack with different clearances and also used a variety of different shims on the back of the fork. When I increase or decrease the shims on the back of the fork, it gets worse. The inch is the least I can get it to. I didn't notice this until after I broke a planetary set. Here are my questions:
Are you supposed to have a little slack to keep from "dragging" the clutch pack thru low and second ?
Is there a way to get rid of the slack ?
Is it normal ?
Does it hurt anything ?
Are there different forks or towers?
Thanks in advance for the help.
Keith

 

In addition to Mike's post, how much clutch pack clearance are you running?
Lenco recommends between .090 & .110

 

You should be able to adjust the slack out of the shifter with the tower. Do you have the jam nuts in place? What are you running? 40 lbs is pretty high for lever pull. Try taking the tower completely off, you should then see the shift fork sticking up, see if you can lift it up or down. If not, then the tower adjustment is not quite right.

Just my 2 cents

 

I'm running .100 clearance in the clutch pack. If I add another steel (.060) to the pack, it's very close to locking up the pack.

When I run the tower down enought to barely take out the slack, the pressure is close to 50 (the little ring and hook came off my gauge). I also had to take the jam nuts off to do that.

I also switched the towers and plungers thinking that it might be that but it was exactly the same.

The top of the fork is about even with the last thread towards the inside of the case.

I had it set at 40 lbs and backed it off 1/2 turn and it went to 34 lbs which would be alright and maybe better off with a little less pressure but again, it has more slack.


I do have jam nuts on it and have about 3 -4 threads of adjustment (down) left when set at 40.

 

Don't mean to ask a stupid question but are you using a long shifter arm to check pressure?
What about any signs of bending or cracks in the roller plate's?
Do your roller plates have a recess cut in them for a .180 thick 2inch round shim or just a flat shim about .075 thick and no recess in the roller plates?
The small shim could be bent.
It sounds like you need more shims against the sprag plate because the shift fork is dropping to deep between the roller plates

 

Fixed

Thanks for the help guys. The problem was...drum roll please... I didn't realize that the top of the tower was also adjustable I adjusted it down a few threads and it tightened it up. Sorry, I'm new to Lenco's.
It is a blown pro mod and I set them at 40 lbs. Should I go a little higher. We run a Chance Converter and there's not much slippage up around 8800 rpm on the shifts. I had someone tell me one time to run them at 32 so it would slip a little on the shifts. It does rattle the tires a little in second. I never tried it...any thoughts
Keith