FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#1
|
||||
|
||||
Powerglide Transmission Won't Upshift
The Powerglide transmission in my 1962 Tempest Safari shifts into reverse and low but won't upshift to drive. The usual causes for this could be a stripped governor nylon gear, low on trans fluid, throttle kickdown lever or rear oil pump not working. After being unsuccessful at determining the cause I recently removed the transaxle so that I could open up the transmission and have a look. As I lifted the planetary gear unit out I heard something drop. There are 2 pins on this that drive the rear oil pump and both had come out because the holes were beat up and oblong.
I brought the planetary gear unit to a local machine shop and had them drill 2 new holes for the pump drive pins. I was able to re-use original pins and they now fit snug in their new holes. Now I am waiting for clutch plates from ebay and gaskets, o-rings and bushings from Clark's Corvair. I will be re-assembling the transmission during the next week. A few years ago I bought Kent-Moore tools needed to work on the automatic trans and differential. All tools shown are illustrated in the 1962 Tempest workshop manual. I painted the transmission housing with Eastwoods Alumablast. |
#2
|
||||
|
||||
www.autotran.us has all the parts that you need.
I have had prefect looking governors cause a no upshift condition on these transmissions.
__________________
The difference between inlaws and outlaws? Outlaws are wanted |
#3
|
||||
|
||||
Quote:
I should be receiving all the parts needed for the transmission today and tomorrow. |
#4
|
||||
|
||||
Quote:
__________________
The difference between inlaws and outlaws? Outlaws are wanted |
#5
|
||||
|
||||
Quote:
I found some worn out bushings and will be replacing. The low sun gear bushing was the worst. I have a full set of Kent-Moore bushing installer tools to make the job easier. I probably won't get the other bushings I ordered till Monday. I found NOS clutch drive plates. |
The Following User Says Thank You to cleveweld For This Useful Post: | ||
#6
|
|||
|
|||
You have a PM
|
#7
|
||||
|
||||
Found The Problem, Finally!
After working on my transmission 1.5 years ago it still wouldn't upshift. A few months ago I tried another governor and no upshift. I finally got up the motivation to tear into it again, this time removing the valve body.
As I was dismantling the valve body to clean it, a broken e-clip fell out. I remember reading on a Corvair forum where they were talking about a broken/missing e-clip in the valve body will cause a no upshift. I looked and found where the e-clip should be and it was missing. This e-clip snaps onto a valve and limits its travel inside valve body. The only way to get at this valve and e-clip is to remove valve body and then separate valve body from transfer plate. I already had a new gasket that goes between valve body and transfer plate so I was able to re-assemble the valve body. Tomorrow I should have the gasket to mount valve body to trans. and a pan gasket. The 1st pic shows the broken e-clip and the new one I got at the hardware store for 25 cents. 2nd pic shows where e-clip is supposed to be. |
The Following User Says Thank You to cleveweld For This Useful Post: | ||
#8
|
||||
|
||||
So after 7 days my transmission gaskets finally arrived this afternoon. It took about an hour and a half to install valve body, connect linkages, install pan and fill trans with fluid.
And then it was time for a test drive. Would the transmission upshift now that I'd replaced the broken e-clip? As soon as I got out on the main road and got to about 20 mph it upshifted!! I drove the long stretch of road leading out of town and got up to about 60 mph. On the return run I got up to about 70 mph. I tried the kickdown cable a couple times but got no response. It has too much slack and needs to be adjusted tighter. I'll do that later tonight after car cools down. |
#9
|
||||
|
||||
Congrats. I need to find the motivation to tighten the band on mine. It makes a metalic noise in between 1-2 up shifts
Always liked that green interior., I think they called it Silverleaf. I had it on my '63 Catalina wagon.. |
Reply |
Thread Tools | |
Display Modes | |
|
|