Rough 3-2, is my thinking right?

[77 cruiser]

Would it help to increase the 3rd clutch feed, & would it help 3rd to release quicker?
Still have a slight bind @ low mid throttle so I need to increase the 3rd accum. hole?
3-2 control is blocked.

 

[RmvBfrFlght]

With a built trans and a Superior servo, I was able to fix the 3/2 bind/bang/crunch by changing the servo return spring and adding a cushion spring.

RemoveBeforeFlight

 

[77 cruiser]

I have a Sonnax servo with heavy return spring & cushion spring. Installed heavy springs in the direct too.

 

[Ttype6]

Would it help to increase the 3rd clutch feed, & would it help 3rd to release quicker?
Still have a slight bind @ low mid throttle so I need to increase the 3rd accum. hole?
3-2 control is blocked.View attachment 309278

Do you have a 3-2 downshift clunk or a low speed 2-3 upshift bind?

 

[77 cruiser]

2-3 upshift bind at 1/4 to mid throttle. No real clunk on the coat down shift, but a rough kick down.

 

[Ttype6]

2-3 upshift bind at 1/4 to mid throttle. No real clunk on the coat down shift, but a rough kick down.

A stronger servo return spring,the small spring,should help both of those symptoms. Dave Husek should be able to get you what you need.

 

[jthomas]

Do you still have checkball 4? If so, remove it and retest. Same with checkball #2...remove that too.

On my setup I have 4 checkballs in the case and 2 in the valve body: 4 in the case are #3, #6, #9, and #10. On the valve body I omitted the center one #8 for a firmer 1-2 shift.

Also, what is your band travel (clearance). Sonnax recommends .110 but that is way too much for a dual feed setup. Mine is right around .040. Although clearance would most likely affect apply more than release I believe. Less clearance, quicker to apply.

 

[77 cruiser]

2 & 4 are not there. Band is .045. I have the heavy return on the servo.

 

[jthomas]

2 & 4 are not there. Band is .045. I have the heavy return on the servo.

Good deal. Unfortunately, that's all the help I have for you. Will be watching to see what others suggest. Keep us posted on what you finally figure out.

 

[Ttype6]

I have the heavy return on the servo.

When you say heavy,do you mean the heaviest that comes with the servo?

 

[77 cruiser]

Yes the one David said to put in.

 

[Ttype6]

Yes the one David said to put in.

Are there 2 or more springs that come with the servo or did Dave send you a different spring and advise you not to use the spring that came with the servo?

 

[77 cruiser]

I think only 1 came with it.

 

[Ttype6]

I think only 1 came with it.

Did you use the spring that came with the servo or did you use a different spring that Dave sent in addition to the spring that came with the servo?

 

[77 cruiser]

If 2 came with I used the heaviest one.