Re: 727 Rear Vent Leak
[Re: MoParFish]
#1514889
10/10/13 11:32 AM
10/10/13 11:32 AM
|
Joined: Dec 2009
Posts: 20,647
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
|
Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,647
in a cattle trailer down by th...
|
Plug that off and move it to the top of the tailshaft housing. Maybe add a short extension to it if you have the room or run a hose off it to a higher point like on top of the bell housing.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
|
|
|
Re: 727 Rear Vent Leak
[Re: 440lebaron]
#1514893
10/10/13 03:02 PM
10/10/13 03:02 PM
|
Joined: Jan 2011
Posts: 19
N.E. IL. U.S.A.
Rumblefish68
member
|
member
Joined: Jan 2011
Posts: 19
N.E. IL. U.S.A.
|
My vent was on the tailshaft, over the Parking ring, thought the gear was throwing oil out the vent, moved it back further, still leaked. No transbrake, does wheelstand. Put a catch can on, vented up to firewall. Can has a petcock which I drain every 3-4 passes, about a shot glass full. I 've heard this is a common problem with Turbo 400's. Mine's a 727, manual, rollerized, alum. drums etc.
|
|
|
Re: 727 Rear Vent Leak
[Re: dartman366]
#1514895
10/10/13 03:47 PM
10/10/13 03:47 PM
|
Joined: Dec 2009
Posts: 20,647
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
|
Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,647
in a cattle trailer down by th...
|
I still use the stock vent in my 904 with a TA tranzbrake and it has never leaked.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
|
|
|
Re: 727 Rear Vent Leak
[Re: Guitar Jones]
#1514896
10/10/13 04:15 PM
10/10/13 04:15 PM
|
Joined: Dec 2012
Posts: 1,824
Wind Gap,Pa.
Sammy
top fuel
|
top fuel
Joined: Dec 2012
Posts: 1,824
Wind Gap,Pa.
|
Quote:
I still use the stock vent in my 904 with a TA tranzbrake and it has never leaked.
From what I have experienced only griner & A & A valve body does it
Spews that is
|
|
|
Re: 727 Rear Vent Leak
[Re: MoParFish]
#1514898
10/10/13 06:12 PM
10/10/13 06:12 PM
|
Joined: Mar 2006
Posts: 9,860
MI, usa
dvw
master
|
master
Joined: Mar 2006
Posts: 9,860
MI, usa
|
Quote:
Had vent moved to rear of case among other mods on the 727 as I was going to run a trans brake. I abandoned the brake idea for now so currently running a forward pattern manual VB. Now, every pass it's losing a substantial amount of fluid through the rear vent. Everyone says it starts smoking half track and when I get back to check everything is dripping wet and exhaust is brown where it's burning it off. Tried running fluid level a tad low just to see but no change. The vent is just like the one in the pic and in same location. The vent cap has slight spring pressure when lifted as I would expect. When I check for the source of the leak it all points to the rear vent. Anyone ever had that problem or any ideas? 
Mines in the next cavity up. I have 1/4 push lock going to a small 5 oz. catch can near the license plate. 100 passes, never had to empty it. No trans brake.
Doug
|
|
|
Re: 727 Rear Vent Leak
[Re: 80fbody]
#1514899
10/10/13 06:12 PM
10/10/13 06:12 PM
|
Joined: Feb 2003
Posts: 2,563
S.E. Michigan
cl440
master
|
master
Joined: Feb 2003
Posts: 2,563
S.E. Michigan
|
Quote:
I've yet to put mine in the car but I installed a 90 degree barb fitting in the tailshaft with plans on running it up to the firewall with a small breather tank. Maybe getting the vent up to the firewall will help you out.
Had to do this on the Duster also. Pushes into a vented tank and then drains back when not under pressure. Works good 
|
|
|
Re: 727 Rear Vent Leak
[Re: superwrench]
#1514901
10/10/13 07:39 PM
10/10/13 07:39 PM
|
Joined: Nov 2003
Posts: 7,348
Mt.Vernon ,Ohio
VernMotor
master
|
master
Joined: Nov 2003
Posts: 7,348
Mt.Vernon ,Ohio
|
Quote:
In the instructions I got when I was relocating my vent rearward, it specifically stated that there was an oil feed hole in the parking ring that MUST be plugged otherwise fluid would be spewed outwards to the relocated vent. I think those instructions come from John Cope if I'm not mistaken. I know I have never had a drop of oil come out of the relocated vent as the OP has posted and I did drill and tap that hole for a set screw plug.. 
Mine vent is in the same place as the pic. been there for years. Not a drop out of it. need to read what is posted above.
|
|
|
Re: 727 Rear Vent Leak
[Re: VernMotor]
#1514902
10/10/13 09:32 PM
10/10/13 09:32 PM
|
Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
dusturbd340W5
master
|
master
Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
|
I have relocated at least a dozen to the same position as the OP picture and have never had 1 leak yet.
but I have never used a griner or A&A VB either.
70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake
best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
|
|
|
|
|
