TH425 manual lever seal

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harascho
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Joined: Fri Oct 19, 2012 9:04 pm
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Years Owned: 1966 Toronado Deluxe owned 1 year

TH425 manual lever seal

Postby harascho » Fri Feb 16, 2018 3:52 am

Hi gents,

it's been a while..... the Toronado is in its winter sleep and I work on the '56 Caddy. When last looking under the Toronado I saw some automatic gear oil. Seems to come from the manual lever seal. That one has a story with me. When the tranny was on the bench I replaced every seal except the manual lever's O-ring. That was because the pin securing the shaft is buried in the hole. That pin secures the shaft in place, goes through the housing and sits in a groove of the shaft.

At the time I had that in front of me I thought ok let's try it.... it held 2 years, now the long winter rest has oil comming out of the shafts bore..
Did anyone have similar trouble?

cheers
Harald
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manual_shaft_2.JPG (87.79 KiB) Viewed 949 times
manual_shaft_1.JPG
manual_shaft_1.JPG (74.2 KiB) Viewed 949 times

Otto Skorzeny
Posts: 938
Joined: Fri Feb 28, 2014 12:41 pm
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Years Owned: 1966 Toronado

Re: TH425 manual lever seal

Postby Otto Skorzeny » Fri Feb 16, 2018 6:30 am

I've never had my tranny out. If I see oil on the ground I just make sure I add oil as needed.

bcroe
Posts: 190
Joined: Thu Nov 15, 2012 12:25 pm
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Years Owned: 79 Toronado or Eldorado

TH425 manual lever seal

Postby bcroe » Fri Feb 16, 2018 12:46 pm

Put in a new O ring. However, the leak that really causes problems on the TH435
is at the bottom of the chain cover. Not enough metal there for a cork gasket, it
will hold if you glue the cover back on. Bruce Roe

Mikel
Posts: 118
Joined: Tue Aug 11, 2009 7:26 am
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Location: New Haven, CT

Re: TH425 manual lever seal

Postby Mikel » Fri Feb 16, 2018 2:52 pm

The problem is that the shaft comes outwards and the frame is 1/2" from it... Perhaps you can unbolt the motor mounts and allow the engine/trans to drop a bit.

User avatar
harascho
Posts: 106
Joined: Fri Oct 19, 2012 9:04 pm
TOA Membership Number: 0
Years Owned: 1966 Toronado Deluxe owned 1 year

Re: TH425 manual lever seal

Postby harascho » Fri Feb 16, 2018 10:09 pm

guys you misunderstood me..;-)
I know that I have to replace the shaft's o-ring.... problem is that the shafts securing pin has to come out to remove the shaft. And that lovely pin is buried in the aluminium material of the housing see pic

cheers

Harald
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Mikel
Posts: 118
Joined: Tue Aug 11, 2009 7:26 am
TOA Membership Number: 100
Location: New Haven, CT

Re: TH425 manual lever seal

Postby Mikel » Sat Feb 17, 2018 4:28 pm

I wish I could help you. I rebuilt my TH425 (and a couple of TH400s) and I never had a problem getting those out. I just don't remember how they are secured, but I bet if you have a closer look it is much easier than it looks.


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