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Trans too full?

Posted By: fasteddie

Trans too full? - 08/26/12 03:14 AM

727 trans is about 1/2 inch above the full mark. Is that enough to make it blow out the vent? Factory vent in bell housing.

Thanks
Posted By: 408strokerdart

Re: Trans too full? - 08/26/12 03:25 AM

Yes. Always better to be a little under it rather than over it.
Posted By: Cab_Burge

Re: Trans too full? - 08/26/12 04:55 AM

Quote:

Yes. Always better to be a little under it rather than over it.


Especially if your running a dep pan I run the Mopar steel dep pans and try to run it at the add line when cold or between the bottom of the dipstick and the add line when hot, whatever turns your crank As long as it is showing on the stick in nuetral with the motor running your probally good
Posted By: rck850

Re: Trans too full? - 08/26/12 01:55 PM

Quote:

Quote:

Yes. Always better to be a little under it rather than over it.


Especially if your running a dep pan I run the Mopar steel dep pans and try to run it at the add line when cold or between the bottom of the dipstick and the add line when hot, whatever turns your crank As long as it is showing on the stick in nuetral with the motor running your probally good




Well I'm pretty sure I just figured out where my slight leak is coming from. Thanks
So as long as I have some showing on the stick with the deep mopar pan I'm good?
Posted By: MR_P_BODY

Re: Trans too full? - 08/26/12 02:09 PM

I try to keep it between the add line and half way
to full
Posted By: robnbird

Re: Trans too full? - 08/26/12 02:43 PM

Quote:

Quote:

Yes. Always better to be a little under it rather than over it.


Especially if your running a dep pan I run the Mopar steel dep pans and try to run it at the add line when cold or between the bottom of the dipstick and the add line when hot, whatever turns your crank As long as it is showing on the stick in nuetral with the motor running your probally good


with a 8" converter and a deep pan how much would you guess to it would hold ....Cab
Posted By: Cab_Burge

Re: Trans too full? - 08/26/12 06:10 PM

Quote:

Quote:

Quote:

Yes. Always better to be a little under it rather than over it.


Especially if your running a dep pan I run the Mopar steel dep pans and try to run it at the add line when cold or between the bottom of the dipstick and the add line when hot, whatever turns your crank As long as it is showing on the stick in nuetral with the motor running your probally good


with a 8" converter and a deep pan how much would you guess it would hold ....Cab


I had my trans out recently to fix a leak, I drain the trans pan and then removed and filled the converter up completely to do a air test to see if the converter was causing the leak. I replaced the rubber O ring and the paper gasket on the front pump and removed some of the fluid from the converter to install it into the trans, I still spilt some. I put 7 quarts in the trans and started it up before checking it with less type F fluid, it was over the full mark idling cold I drained around half a quart out and it is now above the add line and below the full mark warm My meassage is with a deep pan and a new 8 inch converter I would put one quart in the converter before installing it into the trans. and six quarts in the trans and then warm it up and check it
Posted By: fasteddie

Re: Trans too full? - 08/26/12 06:24 PM

Quote:

Quote:

Yes. Always better to be a little under it rather than over it.


Especially if your running a dep pan I run the Mopar steel dep pans and try to run it at the add line when cold or between the bottom of the dipstick and the add line when hot, whatever turns your crank As long as it is showing on the stick in nuetral with the motor running your probally good




Thanks for the replies. Yes it does have a steel deep pan with the cooling ports. We put one qt in the converter and 6 qts in the pan and it shows about 1/2 inch above full cold. We had the trans out because we had a bad leak in the bell housing. We found the converter cracked at the mounting lugs and a crack in the hub. Had trans guy change all the seals, put in a fresh rebuilt JW converter. Still leaking from the bell housing.

I hope it's just too full. I'm going to drain about a qt and see if it still leaks.

Any other ideas? Is there anything in the trans that could go bad to make it leak out the vent?

Thanks
Posted By: racerx

Re: Trans too full? - 08/27/12 12:45 AM

I'll be watching this thread closely as i also have a bell housing leak that giving me fits Cab care to share your method for presure testing a converter?Sorry not trying to hi-jack.
Posted By: CHAPPER

Re: Trans too full? - 08/27/12 12:48 AM

Posted By: fasteddie

Re: Trans too full? - 08/27/12 02:09 AM

We drained about a qt out of it so was between the lines cold. Started it and it still leaks, even when there is nothing on the dipstick. Trans comes out tomorrow (hopefully)
mopar race is this weekend at Bristol.
Posted By: rickraw

Re: Trans too full? - 08/27/12 02:25 AM

did u check the dip stick calibration. it could be wrong. just something to check first.
Posted By: fasteddie

Re: Trans too full? - 08/28/12 01:13 AM

Been using the same dipstick for years. Thanks for the reply.

Trans is out. I don't see anything wrong, or missing, or cracked. It goes to the trans shop in the AM.

I think I can still make the Mopar race this weekend.
Posted By: Cab_Burge

Re: Trans too full? - 08/28/12 02:50 AM

Quote:

I'll be watching this thread closely as i also have a bell housing leak that giving me fits Cab care to share your method for presure testing a converter?Sorry not trying to hi-jack.


I use a cable testing end I rescued, borrowed for pressurizing telephone cables on the cable reels from the telephone company I use to work for, we would throw them away after installing the cables on the poles or into the conduits, see the picture They came in all sizes, I use them to pressurised a lot of things like radiators, motors, torque converters and so on. I wish that I had save more of them

Attached picture 7353476-MVC-039S.JPG
Posted By: viperrt

Re: Trans too full? - 08/28/12 03:35 AM

We were pulled off the line at the 2011 Mopars at the Strip for a transmission leak. Pulled the 727 returned it to ProTrans who went through it. Bottom line we overfilled the trans!!!
Posted By: fasteddie

Re: Trans too full? - 08/29/12 03:38 AM

Quote:

We were pulled off the line at the 2011 Mopars at the Strip for a transmission leak. Pulled the 727 returned it to ProTrans who went through it. Bottom line we overfilled the trans!!!




I had hoped that is all it was, but even after draining some fluid out it still leaks.

Didn't get the trans to the shop until about 4pm and he didn't have time to look at it today. He said tomorrow morning he will look at it.
Posted By: racerx

Re: Trans too full? - 08/29/12 02:02 PM

Thaxs...Cab.4 the ideals on fabing something up on the conv.


Fasteddie let us no what your trans guy come up with on that transmission.
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