More torqueflite games

[hoover]

I did my first rebuild this past winter, and got a lot of good advice here,so I am hoping for some more..

The shifts were never as firm as I'd hoped but everything seemed to be working well until the last drive.

When accelerating at wide open throttle the shift from 2 to 3 was really soft and seemed to hang on for a long time.

I did a pressure test in the drive position.
Taking pressure readings from the line pressure port and the front servo release port, at 1600 rpm the line pressure was 90 psi and the servo release was 75.
At the same rpm when I pushed the throttle pressure rod back both gauges read 100 psi.
At idle the servo release gauge went to zero when i operated the kick down.

The transmission has the tf2 kit installed so not sure if my pressure is too high to begin with.
I tested the gov pressure earlier this summer when I was trying to sort out the forced kickdown and that was good.

I feel like there is a problem in the front clutch- am i on the right track?
In hindsight i wonder if i screwed up when installing the lip seals.

I appreciate any advice on this!

 

[hoover]

I removed the pan this morning to do an air check.
There is a little metallic stuff in there.

 

[icetech]

I removed the pan this morning to do an air check.
There is a little metallic stuff in there.

View attachment 1911987

Can't help with the shifting.. but when i did my trans and pulled the pan after not many miles i went into panic mode cause of glitter, called Cope and he laughed and told me that's normal from parts just meshing on a new build. not sure how many miles are on yours but mine looked the same or worse. I actually pulled my trans and built it again cause it made me so paranoid, didn't find a single thing wrong.

 

[hoover]

That is what i was hoping to hear!
Might have 500 miles on it

 

[icetech]

That is what i was hoping to hear!
Might have 500 miles on it

mine looked like that at 40.. i have maybe 200-250 on it now without any issues. Someone else will chime in if i'm wrong.. I also see it as, i know how to fix it if it dies anyway.. so no biggy

 

[hoover]

I dropped the valvebody and did an air test on the front and rear clutch apply ports.
The rear makes a solid thud noise when air is applied and when it is released.

The front makes a different sound when air is applied and no noticeable sound when released.
I have a feeling that I will be removing a transmission..
Does that seem accurate?

 

[icetech]

I dropped the valvebody and did an air test on the front and rear clutch apply ports.
The rear makes a solid thud noise when air is applied and when it is released.

The front makes a different sound when air is applied and no noticeable sound when released.
I have a feeling that I will be removing a transmission..
Does that seem accurate?

@dvw would be the man to answer that.. he is the trans man...

 

[dvw]

You are on the right track. If the front clutch application is slow, a sloppy 2/3 shift will occur. Either the fluid volume is delayed by a sticky valve or there is an internal leak. Since the valve body has already been removed, start there first. A call to Trans Go’s tech department is a good idea. Sometimes it takes them time to get back. But they will. They are very knowledgeable. If the valve body checks out then I’d be looking at the reaction shaft rings and front clutch piston seals. It’s not unheard of to catch the piston outer seal lip and tear it.
Doug