727 problem PLEASE HELP

[dredevil]

I put my 727 in my eagle and it is having some problems shifting.

Reverse and 1st (I think) are good. but it don't shift into 3rd. I never feel it shift into 2nd ether but if I am moving and I manual shift into 1st I can feel it down shift. I have set my kick down linkage in every possible position but no change. I am going to attempt to rebuild it myself but I was wondering if someone might know where this problem is coming from.

any help will be appreciated!!!

[eaglebeek]

What's happening when you pull the shift lever into the "1" position is that you're engaging the rear band. In other ranges it's handled by an overrunning clutch, and the rear band is not doing anything. When the lever is in "2" or "D" position and the car is moving too slowly to upshift out of first the overrunning clutch allows the engine to return to idle speed when you release the accelerator. Pulling the lever into "1" allows engine compression braking by engaging the rear band.

In fewer words...I don't think you're attaining second or third gear. Shift points are controlled by the governor and the kickdown linkage. You don't say in what condition the 727 was when you put it in, and I'm assuming it sat for a while.

I suspect the governor is stuck. It's located under a round cover at the back of the transmission at the rear of the transmission section. The transfer case and adapter housing must be removed to gain access. It's not necessary to remove the transmission from your car. That's where I would start.

Let us know what you find and we'll go from there.

[dredevil]

That's great  info! I will give that a try.

The Trans was sitting for a while and the pan was kind of muddy but still redish.

[dredevil]

I don't think the 4x4 units have the round plate. Looks like I need to remove the T-Case and the tail shaft to get to the  governor. Am I missing something?

[eaglebeek]

I don't think the 4x4 units have the round plate. Looks like I need to remove the T-Case and the tail shaft to get to the  governor. Am I missing something?

Yup, you are right. I should have double-checked it before I started typing. I guess I was thinking Allison/GM at the time. I've edited my original post.

Typically, the first thing I do on just about any sort of an automatic transmission problem is change fluid and filter.  Other than checking fluid level it's the simplest procedure one can perform, and many times will resolve the problem.

To get to the governor you will need to remove the transfer case and the adapter housing. It is not necessary to pull the tail shaft. The governor will be readily visible on the parking gear at the back of the transmission.  

[dredevil]

I am going to give that a try this weekend. What should I use to clean the governor?

[eaglebeek]

You can use any commercial carburetor cleaner.

Disassemble it first. After removing the transfer case and adapter housing turn the tailshaft so the weight end of the governor faces down. Take off the small e-shaped clip in the center and remove the governor components. Then use snap ring pliers to pull out the larger snap ring and take out the weight. You do not need to nor do I recommend taking off the 4 bolts holding the back parts on.

If either the e-clip or the snap ring fly away you can get replacements at the hardware store.

[carnuck]

I put a clear bag over them or mount a magnet to catch anything that tries to fly away.

[dredevil]

Its alive!!!!  

The small end of the governor was stuck real good. I can't thank you enough!!!

[vangremlin]

Yeah!!! Glad to hear it was a relatively easy fix!!

[eaglebeek]

Congrats to you, dredevil. Happy to read it's alive