Seeping 727 aluminum trans pan?
#987153
05/06/11 02:16 PM
05/06/11 02:16 PM
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Joined: Jan 2003
Posts: 1,753 Windsor, ON, Canada
Diplomat360
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 1,753
Windsor, ON, Canada
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Guys,
This is on my project car which has not seen any street miles yet.
I put on a TCI deep aluminum pan on my 727 a couple of years ago. I've noticed once before that the pan would start showing a very very slow 'leak'...more like a seep of trans fluid on the bottom of the pan. Over the winter as I put the car in the garage I cleaned up the pan, it was nice and dry, but over the few months I find that the bottom of the pan is now wet again.
I have examined the gasket area (pan to trans case) and see that there are no leaks there. The pan is actually nice and dry there, only the bottom is wet. There are no other leaks that I can find.
Has anyone else found their aluminum to be porous like that?
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Re: Seeping 727 aluminum trans pan?
[Re: Diplomat360]
#987154
05/06/11 02:19 PM
05/06/11 02:19 PM
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Joined: Apr 2010
Posts: 10,570 Sunny South Florida
Golden-Arm
I Live Here
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I Live Here
Joined: Apr 2010
Posts: 10,570
Sunny South Florida
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you might be able to clean it, bake it to remove all traces of surface ol, and use an epoxy type sealant to coat the inside, to stop the seep. cast aluminum is porous to a small degree, and from piece to piece there will be variations. you might have been the unlucky guy, to get a porous pan. you dont want to seal it externally, just the inside surface, if it really bothers you.
"When Tyranny Becomes Law, Rebellion Becomes Duty"
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Re: Seeping 727 aluminum trans pan?
[Re: Golden-Arm]
#987155
05/06/11 02:23 PM
05/06/11 02:23 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Sure it's not the gear selector seal?
It has a bad habit of dribbling down and making the pan gasket look like it's leaking.
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Re: Seeping 727 aluminum trans pan?
#987156
05/06/11 05:21 PM
05/06/11 05:21 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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Re: Seeping 727 aluminum trans pan?
[Re: Diplomat360]
#987161
05/06/11 11:02 PM
05/06/11 11:02 PM
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Joined: Jan 2003
Posts: 1,753 Windsor, ON, Canada
Diplomat360
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 1,753
Windsor, ON, Canada
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Doc: TCI, reluctantly, after several emails to their tech-line suggested I send it back...this was last year though when I first noticed it, I really didn't feel like pulling it all apart as we were nearing a house move. Looks like I may have to bite the bullet this time around though.
A12: I switched to a Lokar flexible dipstick...it had a machined aluminum end, with an o-ring. To make sure it really wouldn't leak I also dabbed some Orange silicone around the opening (trans fluid safe), let it set and then filled the pan. No leak around that area what so ever...I can guarantee it...LOL!
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