C6 dipstick o-ring?
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Junior User
Joined: Oct 2005
Posts: 61
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From: Arvada, CO
C6 dipstick o-ring?
My RV barfs a puddle of tranny fluid after it's been parked a while. It's an 83 E-350 460 4bbl C6 auto. It looks like it's coming from where the dipstick tube enters the tranny body. I understand there's an o-ring on the bottom of the tube, and hope someone can give me a size so I can have the replacement ready before pulling the tube out and leaving it out while I run all over town for a replacement?
Is it normal for the TC to drain enough fluid back into the pan to fun out that high up the case?
Is it normal for the TC to drain enough fluid back into the pan to fun out that high up the case?
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Junior User
Joined: Oct 2005
Posts: 61
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From: Arvada, CO
Thanks, guys. Stopped off at the local Ford dealer, since he was closer than any tranny shop. $1.10 for an o-ring, but the parts guy comes out with a pkg of 4. He says "Looks like they've changed things, and I'm not breaking open the pkg to give you one and I'm not changing the invoice to bill you for 4 when you only want 1. So, Merry Christmas."
Anybody need an o-ring for the cost of postage? :-)
Anybody need an o-ring for the cost of postage? :-)
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Junior User
Joined: Oct 2005
Posts: 61
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From: Arvada, CO
Hey - wasn't me that denigrated silicone! Besides, turns out the partsman pulled the wrong pkg and I ended up making another run - traded the pkg of 4 for a single o-ring of the correct size and got my $1.10 back for my troubles.
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Senior User
Joined: Aug 2006
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From: east dubuque, il.
I just want to clearify that we use a new o-ring and silicone. This is just an added little security. Sorry if you thought I was aming that toward you. Just a little sarcasim.
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Senior User
Joined: Aug 2006
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From: east dubuque, il.
Just for your info, all auto manufactors use silicone on there cars and trucks in place of o-rings and gaskets. I work in a tranny shop and see this everyday. The number one cause of tranny failure is failure to maintain your trans., not because you sealed a dipstick tube with a new o-ring and silicone.
Cargo Master
Joined: Jun 2003
Posts: 2,982
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From: Somewhere Saskatchewan
So wrong my friend.
I spent 47 years in the transmission field and have rebuilt thousands and thousands of transmissions.
Yes some do use silicone. Mainly on a pan gasket.
However standard transmissions do use silicone.
But the majority of automatic transmissions do not and those that do use a special kind that is non sensor damaging and not in critical areas.
I spent 47 years in the transmission field and have rebuilt thousands and thousands of transmissions.
Yes some do use silicone. Mainly on a pan gasket.
However standard transmissions do use silicone.
But the majority of automatic transmissions do not and those that do use a special kind that is non sensor damaging and not in critical areas.
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Junior User
Joined: Oct 2005
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From: Arvada, CO
Not to get in the way of a "peeing for distance" contest, but I'm going to bet that my 83 C-6 doesn't have any sensors that would react adversely to silicone (unless that silicone happens to be installed in the rider on the pax seat) then that silicone would cause the DW to react badly, I'm sure!!!
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Junior User
Joined: Oct 2005
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From: Arvada, CO
On one hand, if I took it to a shop and they smeared some silicone around the dipstick and charged me an hour of labor, I would agree with you completely - shoddy repair. One the other hand, I simply put a new o-ring on the tube and reinstalled it. I did ponder putting a little silicone around the tube as a "belt and suspenders" approach, but first, the original o-ring lasted for 23 years and 58,000 miles before leaking - I'll take my chances that the new one will perform as well. Secondly, I didn't want to go through the contortions required to put silicone on it.
Finally, thanks for everyone's input - I'm not a tranny mechanic, just an average joe that doesn't mind working on old junk - and it's a good thing, too, because that pretty much sums up the status of all my "stuff" :-)
Finally, thanks for everyone's input - I'm not a tranny mechanic, just an average joe that doesn't mind working on old junk - and it's a good thing, too, because that pretty much sums up the status of all my "stuff" :-)
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