Re: 727 trans vent relocation
[Re: crash520]
#2465127
03/12/18 10:58 AM
03/12/18 10:58 AM
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Joined: May 2003
Posts: 13,226 aZLiViN
J_BODY
I Live Here
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I Live Here
Joined: May 2003
Posts: 13,226
aZLiViN
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https://www.forbbodiesonly.com/moparforum/threads/727-torqueflite-rear-vent-install-question.146442/nice lil discussion with pictures and everything... I use the same "quick connect" discussed in this thread. The trans in my old Mirada was the plastic push in vent and never leaked a drop. My current trans will push fluid out during a pass, thus the catch can was installed. I've also noted the current vent is not in the same location as what the Mirada had. Believe it was the same as the picture noted in the link.
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Re: 727 trans vent relocation
[Re: crash520]
#2465209
03/12/18 02:31 PM
03/12/18 02:31 PM
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Joined: Dec 2005
Posts: 12,289 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 12,289
Fulton County, PA
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Back of the case so that it is open to the cavity under the rear support. I like it at 11 o'clock above the bolt hole on top left as long as there is not a clearance issue. Just below the bolt hole would be my second choice.
If the results don't match the theory, change the theory.
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Re: 727 trans vent relocation
[Re: RTSE4ME]
#2465296
03/12/18 05:09 PM
03/12/18 05:09 PM
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Joined: Oct 2003
Posts: 11,702 W. Kentucky
justinp61
I Live Here
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I Live Here
Joined: Oct 2003
Posts: 11,702
W. Kentucky
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When I built my 904 John Cope told me not to add a rear vent. It was also mentioned in the link Cope no longer vents at the rear. When I added my trans brake I was told if I drilled the piston (I did) instead of the drum I wouldn't need to relocate the vent. Guess what? It blew fluid out the factory vent so the transmission had to come back out and partially apart to move it.
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Re: 727 trans vent relocation
[Re: crash520]
#2465375
03/12/18 07:55 PM
03/12/18 07:55 PM
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Joined: Dec 2005
Posts: 12,289 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 12,289
Fulton County, PA
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Done many, never had one leak where I put them.
If the results don't match the theory, change the theory.
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Re: 727 trans vent relocation
[Re: RTSE4ME]
#2465446
03/12/18 09:54 PM
03/12/18 09:54 PM
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Joined: Feb 2005
Posts: 1,571 New Smyrna Beach FL
scottb
pro stock
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pro stock
Joined: Feb 2005
Posts: 1,571
New Smyrna Beach FL
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When I built my 904 John Cope told me not to add a rear vent. It was also mentioned in the link Cope no longer vents at the rear. That is what Joe at tranz act told me to not to move it to the back
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Re: 727 trans vent relocation
[Re: crash520]
#2467043
03/15/18 07:54 PM
03/15/18 07:54 PM
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Joined: Dec 2005
Posts: 12,289 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 12,289
Fulton County, PA
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Normally the stock vents don't leak, but I never say never. I've never had one leak at the rear and I've taken brakes out and put regular manual units in without plugging it. I wouldn't put a vent in the rear with a governor still in it. BUT If the guys who do it all day, everyday say not to move it, they have a reason and I'm not going to argue with them.
If the results don't match the theory, change the theory.
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Re: 727 trans vent relocation
[Re: crash520]
#2467053
03/15/18 08:17 PM
03/15/18 08:17 PM
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Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
master
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master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
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My advice is to be cautious of drilling the case close to the sealing surface. Then be even more careful tightening the tapered pipe fitting with the hole so close to the case edge/ sealing surface.
"use it 'till it breaks, replace as needed"
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