Gain extra benefits by becoming a Supporting Member Click here find out how!
Classic Performance Products Classic Parts
Ciadella InteriorsAmerican Auto Wire Classic Industries
Chevs of the 40sDanchuk Catalog
Hellwig Products IncPerformance Rod & CustomEcklers AutoMotive
Nu-Relics Power Windows
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy

Username Post: Powerglide reverse        (Topic#349036)
Hards..60 
Contributor
Posts: 521
Hards..60
Loc: Northern Ontario,Canada
Reg: 10-20-07
01-06-18 11:12 AM - Post#2720223    

Hello gentlemen.

The last time I was on here, I was whining about a shutter or chatter in my transmission when I put it in reverse. Well since then I have removed the transmission and have conducted an investigation as to why. I have included some pictures and would like to know if I`m on the right track, from anyone who has an opinion.

Here`s what I found.......



This is a picture of the pressure regulator valve assembly...reverse booster from my 1960 shop manual.

And this is how it came apart when I removed the cover.....



I believe that the picture shows this.....



The other thing I noticed was that the pin inside this housing which slips into the valve was on in reverse of the picture.....the pin was inside the valve instead of outside as shown.

Now I have some questions.

1) Would this have caused my problem

2) Here`s a picture from the `58 shop manual showing some ``O`` rings...should there have been ``O`` rings on mine....



3) And finally this...



How freely should this pin move. I can push it in with some pressure.

Any input, from anyone would be greatly appreciated.

Thanks.










Roger.

1960 Impala 2dr hard top - 348 tri















 
This Forum is Sponsored by
1-800-IMPALAS  *  www.impalas.com
Visit Impala Bob's forum on ChevyTalk
Hards..60 
Contributor
Posts: 521
Hards..60
Loc: Northern Ontario,Canada
Reg: 10-20-07
01-11-18 05:04 AM - Post#2720761    
    In response to Hards..60

No one......

Roger.

1960 Impala 2dr hard top - 348 tri















 
models916 
Valued Contributor
Posts: 4701

Age: 66
Loc: Addison, IL
Reg: 05-28-10
01-12-18 04:59 AM - Post#2720840    
    In response to Hards..60

Not really up on PG but, other transmission I work on would have that part moving freely in a near 0 clearance bore lubed with trans fluid. Might be scored or rusted a little. Try cleaning with scotch bright or steel wool before resorting to emery.



 
my60belair 
"4th Year" Silver Supporting Member
Posts: 140
my60belair
Loc: Ontario, Canada
Reg: 08-25-14
01-12-18 01:52 PM - Post#2720871    
    In response to Hards..60

from looking at your pictures and the manual it appears there are 2 pieces not shown in what you removed. The 2 leftmost pieces in the first book picture you show and #8 and #10 in the second manual picture. Those appear to be the ones that have the o-rings. Are they still in the transmission? The part you have out doesn't look like it would have O-rings installed, but I could be mistaken.

Looking at the pictures it does look like you are correct and the spring appears to be in the wrong location, but I'm not a transmission expert.

If at first you don't suceed, destroy all evidence you ever tried...

1960 Bel air Sport Coupe, 1964 Pontiac Catalina Convertible


Edited by my60belair on 01-12-18 01:56 PM. Reason for edit: No reason given.

 
Gene_Schneider 
Ultra Senior Member
Posts: 12071

Loc: Wisconsin..USA
Reg: 09-27-02
01-12-18 07:39 PM - Post#2720898    
    In response to my60belair

There is a first design and 2nd design pressure regulator valve for 1958 8 Cyl. Power Glides.
Also a kit was made to change the first to the seconed design. The first design had too much pressure and broke the reverse band links.
The 1958 material would show the first design but not the seconed design. That would be in a later Service News.

ChevGene 1934 Master sedan 1939 Master DeLuxe Town Sedan 1950 Styline DeLuxe Power Glide 1957 Nomad 283 PG 1963 Corvair Convertible


 
ragtp66 
Contributor
Posts: 602
ragtp66
Reg: 12-09-07
01-12-18 10:24 PM - Post#2720909    
    In response to Gene_Schneider

[image]https://imgur.com/gallery/piMKg[/image] Pretty sure this is what Gene was referring to 1958 Chevrolet Service News

Toys:
1958 Impala 2dr Hardtop Under Construction
1966 Chevelle Malibu Convert M20/350 Aztec Bronze
1987 Sea Ray Pachanga 22
2002 Cadillac Escalade EXT Parts chaser
2007 Trailblazer SS -gone and missed


 
Hards..60 
Contributor
Posts: 521
Hards..60
Loc: Northern Ontario,Canada
Reg: 10-20-07
01-13-18 05:38 AM - Post#2720928    
    In response to ragtp66

  • models916 Said:
Not really up on PG but, other transmission I work on would have that part moving freely in a near 0 clearance bore lubed with trans fluid. Might be scored or rusted a little. Try cleaning with scotch bright or steel wool before resorting to emery.



I agree models916, problem is how do you get that out of the "cage" it's in to clean and inspect without damaging it?




  • my60belair Said:
from looking at your pictures and the manual it appears there are 2 pieces not shown in what you removed. The 2 leftmost pieces in the first book picture you show and #8 and #10 in the second manual picture. Those appear to be the ones that have the o-rings. Are they still in the transmission? The part you have out doesn't look like it would have O-rings installed, but I could be mistaken.

Looking at the pictures it does look like you are correct and the spring appears to be in the wrong location, but I'm not a transmission expert.




Your right my60belair, parts 6,7,8,and nine are still in there. I'm a little concerned about taking those out, because in the manual it says you have to replace part number 6 if it is removed.



  • Gene_Schneider Said:
There is a first design and 2nd design pressure regulator valve for 1958 8 Cyl. Power Glides.
Also a kit was made to change the first to the seconed design. The first design had too much pressure and broke the reverse band links.
The 1958 material would show the first design but not the seconed design. That would be in a later Service News.





  • ragtp66 Said:
[image]https://imgur.com/gallery/piMKg[/image] Pretty sure this is what Gene was referring to 1958 Chevrolet Service News



Gene, rag, I paid good money to have this transmission rebuilt. Having said that, I can see obvious mistakes were made. I'm hoping there's nothing else wrong with the transmission other than what I have found. I'm also guessing that something as blatant as a band link would have been caught by the builder.

So, what I'd like to do now is replace those parts listed in the 1960 manual for this reverse kit.

Can I buy this kit from someone so that I may make the repairs.

I would take the transmission to a transmission shop locally but I've tried that and it didn't work. The last place I took it to the tech test drove the car and agreed there was something wrong with reverse. The tech suggested taking the oil pan off first to see if there were metal shavings at the bottom of pan.

I took the car home and you guys now know the rest.

All great responses, guys, much appreciated.

Roger.


Roger.

1960 Impala 2dr hard top - 348 tri















 
Gene_Schneider 
Ultra Senior Member
Posts: 12071

Loc: Wisconsin..USA
Reg: 09-27-02
01-13-18 08:48 AM - Post#2720940    
    In response to Hards..60

If he said anyting about dropping the pan you know he knows nothing about a cast iron Power Glide BECAUSE IT DOES NOT HAVE A PAN.
Yes, they sold a valve body change over kit to update early transmissions. As I recall it contained a plug and necessary to drill a small hole in the plug to reduce pressure. My technical service bulletin #379 says it is part #3759998 and should be installed in transmissions built prior to trans # C-630D.....that is befor June 30, 1958. The installation proceedure is in that bulletin.

ChevGene 1934 Master sedan 1939 Master DeLuxe Town Sedan 1950 Styline DeLuxe Power Glide 1957 Nomad 283 PG 1963 Corvair Convertible


Edited by Gene_Schneider on 01-13-18 09:00 AM. Reason for edit: No reason given.

 
Hards..60 
Contributor
Posts: 521
Hards..60
Loc: Northern Ontario,Canada
Reg: 10-20-07
01-15-18 05:38 AM - Post#2721086    
    In response to Gene_Schneider

Gene, as you describe, they have a kit for early 1958, but would they have something for sale today to rebuild or repair the reverse power valve on a power glide like mine....1960.

Thanks.

Roger.

1960 Impala 2dr hard top - 348 tri















 
Gene_Schneider 
Ultra Senior Member
Posts: 12071

Loc: Wisconsin..USA
Reg: 09-27-02
01-15-18 02:22 PM - Post#2721117    
    In response to Hards..60

The case was changed (passage wise) in 1959 and pressure regulator parts were changed accordingly.

ChevGene 1934 Master sedan 1939 Master DeLuxe Town Sedan 1950 Styline DeLuxe Power Glide 1957 Nomad 283 PG 1963 Corvair Convertible


 
This Forum is Sponsored by
1-800-IMPALAS  *  www.impalas.com
Visit Impala Bob's forum on ChevyTalk
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

408 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.27 seconds.   Total Queries: 17   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 06:49 PM
Top