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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: moparjo68]
#1084543
09/28/11 07:16 PM
09/28/11 07:16 PM
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Joined: Jan 2003
Posts: 25,925
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,925
Rio Linda, CA
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Use the same 150 in. lb. torque for the new style gasket.
The INTERNET, the MISinformation superhighway
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: John_Kunkel]
#1084544
09/28/11 07:23 PM
09/28/11 07:23 PM
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Joined: Jun 2004
Posts: 893
Tustin, CA
pishta
super stock
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super stock
Joined: Jun 2004
Posts: 893
Tustin, CA
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I know you said it was from the pan, but there is a rod in the back of the trans body that the servo arm pivots on, I had a leak there and it took me while to figure it out, as well as the usual suspects, dipstick seal and speedo pinion and kickdown/selector lever O-ring leaks.
12 Grand Caravan
06 T&C
02 T&C
96 Breeze
65 Barracuda "S"
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: KY Charger]
#1084549
09/29/11 10:35 AM
09/29/11 10:35 AM
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Joined: Jan 2003
Posts: 75,082
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,082
U.S.S.A.
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Quote:
If it is chrome sand off the chrome on the lip and use the rubber composite gasket with the gray permatex. I thought my gasket was leaking at one corner and then my little light bulb lite up and noticed it was my dipstick o-ring that was leaking.
What he said , if the pan is chrome sand the chrome off the gasket rail or you'll never get it to stop.
I chased a trans leak on my truck for 2 years , turns out it was the fittings for the cooler line threads into the trans case .
Running your hand on the case is not going to find the leak , clean the trans, run it and then put baby powder on it, you'll find the leak.
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: JohnRR]
#1084550
09/30/11 02:01 PM
09/30/11 02:01 PM
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Joined: Feb 2009
Posts: 2,034
NW Indiana
deansrr
top fuel
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top fuel
Joined: Feb 2009
Posts: 2,034
NW Indiana
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are you using anything besides the gasket to help seal it? I always use weatherstriping glue to attach gasket to pan and then right stuff on gasket and never have a problems with aftermarket pans
1973 Road Runner
1974 Satellite (for sale)
1973 240z (wifes)
1993 Ramcharger (thanks Devil)
2002 Honda S2000
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: moparjo68]
#1084552
09/30/11 02:48 PM
09/30/11 02:48 PM
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Joined: Jul 2008
Posts: 30,468
Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,468
Florida STAYcation
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Quote:
Well, what the heck is your secret. Cork didn't work for me. 
NO real secret ...other than a dead straight and flat pan rail. AND not OVERtorquing the bolts. CORK has always WERKED furr me ....
I also like the cast alum pan ... those pan-rails are always dead-straight .... 
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: moparjo68]
#1084554
09/30/11 03:51 PM
09/30/11 03:51 PM
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Joined: May 2005
Posts: 4,748
Florida
BDW
master
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master
Joined: May 2005
Posts: 4,748
Florida
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I know you think it's the gasket, so did I. Replaced the gasket 3 times. Finally figured out it was leaking from multiple other places....... NSS gasket bad Pivot pin Selector seal 
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: BDW]
#1084556
10/05/11 08:30 PM
10/05/11 08:30 PM
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Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
moparjo68
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
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Quote:
I know you think it's the gasket, so did I. Replaced the gasket 3 times.
Finally figured out it was leaking from multiple other places.......
NSS gasket bad
Pivot pin
Selector seal
You were sooooo right. It was coming from somewhere other than the pan gasket. It was seeping around the pivot pin. I just didn't want to believe it, 'cause I just spent $450.00 bucks having the tranny rebuilt.
I crawled under the car last nite, stayed there for about 30 minutes to look for leaks. And there it was........seeping around the pivot pin. I was relieved to find the leak........then mad as heck that the tranny guy either overlooked or just neglected to replace this 10 cent o ring. Thanks alot Alan Willis, with Willis Transmissions in Owensboro, KY. I appreciate for all the extra work you caused me. 
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: scratchnfotraction]
#1084558
10/06/11 10:54 AM
10/06/11 10:54 AM
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Joined: Jan 2003
Posts: 75,082
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,082
U.S.S.A.
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Quote:
makes you wonder how much other stuff he overlooked,did not R&R and replace parts 
Not overlooked but not replaced to increase the bottom line , the trans will live past the warranty period .
jack up the rear of the car , clean the area real good , dry it and smear it with a good RTV...
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: moparjo68]
#1084561
10/12/11 11:46 AM
10/12/11 11:46 AM
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Joined: Jan 2003
Posts: 75,082
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,082
U.S.S.A.
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Quote:
Has anyone done this?
Why? It's not like you'll be doing it again anytime soon .
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: moparjo68]
#1084563
10/13/11 01:24 AM
10/13/11 01:24 AM
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Joined: Jan 2008
Posts: 3,886
Lost and Spaced
bboogieart
master
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master
Joined: Jan 2008
Posts: 3,886
Lost and Spaced
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The thing is; they were never intended to last 40 + years. The fact so mant did says the Chrysler engineers did a good job.
I have mechanical Aptitude.
I can screw up anything.
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: scratchnfotraction]
#1084565
10/13/11 10:21 AM
10/13/11 10:21 AM
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Joined: Jan 2003
Posts: 75,082
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,082
U.S.S.A.
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Quote:
dont the tail shaft 'capture" the pin and hold it into the case from working its way out?
In his case it doesn't anymore ... 
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: BDW]
#1084568
10/14/11 11:20 AM
10/14/11 11:20 AM
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Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
moparjo68
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
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Quote:
I'll jump back in here and ask a couple stupid questions:
1) Do you have to pull transmission from the car to pull the tail-shaft?
2) If you did cut off that ear that holds the pin in, would the pin slide out so you could replace the O-ring?
If the answer to both the above is yes, then I could see the benefit to trimming the ear, and then adding a bracket to the bolt to hold the pin in.
Wouldn't this be an easy fix for us shade-tree mechanics would don't want to pull the whole tranny?
1) No, you would not have to pull the transmission to remove tailshaft. You can also cut dog leg off w/o removing tailshaft. Metal is very easy to cut with hacksaw blade.
2) Yes, once the dog leg is removed, the pin will slide out far enough to remove old o ring and install new o ring. I would not slide pin out any farther than pan rail lip of tranny. I will post pics of what I substituted to hold pin in.
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: moparjo68]
#1084571
10/14/11 06:54 PM
10/14/11 06:54 PM
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Joined: Jun 2004
Posts: 893
Tustin, CA
pishta
super stock
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super stock
Joined: Jun 2004
Posts: 893
Tustin, CA
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Quote:
Quote:
You were sooooo right. It was coming from somewhere other than the pan gasket. It was seeping around the pivot pin. .....
Ooh Ooh, did I call it or what!   
Glad you found it. Leaking cars suck especially on new concrete driveways!
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: pishta]
#1084572
10/14/11 09:14 PM
10/14/11 09:14 PM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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Quote:
Quote:
Quote:
You were sooooo right. It was coming from somewhere other than the pan gasket. It was seeping around the pivot pin. .....
Ooh Ooh, did I call it or what!
Glad you found it. Leaking cars suck especially on new concrete driveways!
why yes you did! and yes it does! 
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: BDW]
#1084573
10/14/11 11:15 PM
10/14/11 11:15 PM
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Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
moparjo68
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
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Quote:
Does seem like you could add a piece to the bolt above the dog leg once you cut it off.
Post what you end up with.
Here is the pic of dog leg cut off from tailshaft. When I pushed out pin to replace o ring, I pushed it out past tranny pan rail lip. It would not push back......like there was a stop preventing it. So I removed pressure on pivot pin by backing off band adjustment nut. Then it pushed right back into place.
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: BDW]
#1084574
10/14/11 11:18 PM
10/14/11 11:18 PM
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Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
moparjo68
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
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Quote:
Does seem like you could add a piece to the bolt above the dog leg once you cut it off.
Post what you end up with.
Then I needed a rod of some sort..........very stiff so as not to give to hold back the pin. I found in my box of parts a brace.........maybe once used to brace a dash.
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: BDW]
#1084575
10/14/11 11:20 PM
10/14/11 11:20 PM
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Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
moparjo68
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
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Quote:
Does seem like you could add a piece to the bolt above the dog leg once you cut it off.
Post what you end up with.
I cut on the brace and tweeked it and bent it in a vice 'till I got it down to size.
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: BDW]
#1084576
10/14/11 11:23 PM
10/14/11 11:23 PM
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Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
moparjo68
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
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Quote:
Does seem like you could add a piece to the bolt above the dog leg once you cut it off.
Post what you end up with.
I bolted the brace to the auto tranny shifter brace (not sure if this is proper name) and the other end of brace is NOT pressed against pin. There is approx. 1/8 inch gap between end of brace and pin.
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: BDW]
#1084577
10/14/11 11:25 PM
10/14/11 11:25 PM
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Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
moparjo68
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
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Quote:
Does seem like you could add a piece to the bolt above the dog leg once you cut it off.
Post what you end up with. [/quote:
Another pic of the brace by pin
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: BDW]
#1084578
10/14/11 11:30 PM
10/14/11 11:30 PM
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Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
moparjo68
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
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Quote:
Does seem like you could add a piece to the bolt above the dog leg once you cut it off.
Post what you end up with.
With the 1/8th inch gap, pin can slide back and forth like original set up. When o ring starts leaking again, you don't have to remove tailshaft. Just remove pan and brace, you're done in a fraction of the time.
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: moparjo68]
#1084579
10/15/11 10:29 AM
10/15/11 10:29 AM
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Joined: Jun 2010
Posts: 92
PA
68_CONV_300
member
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member
Joined: Jun 2010
Posts: 92
PA
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: BDW]
#1084582
10/15/11 12:48 PM
10/15/11 12:48 PM
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Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
moparjo68
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 487
Sonoran desert, Arizona, USA
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Quote:
Looks good, I was actually thinking you could make a Z-shaped piece out of flat stock, and use the bolt right above the section you cut off. I guess it might be hard to get a sharp enough bend in such a short distance.
I'm still confused on how you can replace the O-ring without removing the rod?
With the valve body removed, can you slide it all the way out?
I tried to make the z shaped piece you mentioned but found it more difficult. I was not satisfied with end results.
The rod is being pushed out, not removed. Once pan is removed, you can push pin from opposite end and push it out. I didn't have to remove valve body. I just had to get tranny filter out of the way. I had to use a cheater piece (a 1/4 in socket extension) to get pin to push out far enough. Then with pin pushed out, you remove old o ring and place on new one. Then push pin back in. I had to gently tap pin with wooden dowel rod to get back in. New o ring was causing small resistance. I would remove pressure from band before you begin as a pre-caution just in case pin slides out to much.
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Re: 727 tranny that won't stop seeping. Arrrrrrrrrrrrgh!
[Re: moparjo68]
#1084583
02/12/12 02:06 AM
02/12/12 02:06 AM
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Joined: Jan 2004
Posts: 2,190
SW MO
closer9
top fuel
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top fuel
Joined: Jan 2004
Posts: 2,190
SW MO
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Can someone tell me what size O-ring is used for the pivot?
I got the fancy gasket from the dealer, and figured while I was in there I would replace this O-ring. I think I've got an old dash bracket to make a stop for the pin on the outside. I will also finally get around to replacing the kickdown shaft seal. I spent weeks looking for one. Just happened to be in NAPA one day asked about it. $1.50 on the shelf. Guy on the phone told me part number on their website was no good. No one else even had a clue. Found a guy on ebay selling them for $15 + shipping. The kickdown seal didn't appear to be bad or leaking, but I did replace the shift shaft seal, and figured that one needed replaced too.
Daily:
'19 Frontier 4WD
Belle:
'67 Belvedere Convertible, 318/727 in Go ManGo!
Other:
'64 C10, 283/3 on the tree
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