Register now to get rid of these ads!

How much ATF ?

Discussion in 'The Hokey Ass Message Board' started by Bob 1743, Dec 9, 2012.

  1. Bob 1743
    Joined: Jan 1, 2006
    Posts: 447

    Bob 1743
    Member

    GM 350 Trans.

    I had the Trans on a bench, emptied the torque converter, dropped the pan & replaced the screen. There should be no ATF in the Trans. now.

    Poured a quart of ATF into the converter & put everything back together. It's back in the car.

    How much ATF should be added before I crank it over?
     
  2. chaddilac
    Joined: Mar 21, 2006
    Posts: 13,894

    chaddilac
    Member

    Doesn't the dip stick say cold and hot on it?
     
  3. slammed
    Joined: Jun 10, 2004
    Posts: 8,151

    slammed
    Member

    2. Then add a quart as it runs, check-add-check. Shift into all gears (all) every now and then and sneak up on the full mark.
     
  4. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 8,940

    mgtstumpy
    Member

    Here goes, try this. Whilst stationary top it up sufficiently before running it through all the gears to displace all the air and pump oil where it should be. Top up until dipstick reads what it should at full level. Don't forget oil also in transmissions lines and cooler adds to total volume.
     

  5. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    Put in 5 quarts and start the motor, shift through the gears. Then add 5 quarts more and you are done. I know someone will say that is not the right way to do it, but that is how our transmission shop told us to do a TH350 and it worked for us every time we did it.

    Don
     
  6. 26 roadster
    Joined: Apr 21, 2008
    Posts: 2,017

    26 roadster
    Member

    I do it like Don, five or 6 in and start it, fill to mark on dip stick
     
  7. Bob 1743
    Joined: Jan 1, 2006
    Posts: 447

    Bob 1743
    Member

    It sounds like the capacity is about 10 quarts. Can I get a confirmation on this ?
    Don't want to over fill it or run it too dry.
     
  8. Mr48chev
    Joined: Dec 28, 2007
    Posts: 30,058

    Mr48chev
    ALLIANCE MEMBER


    Yuppers, as you never get all of the fluid out of the converter so there is no set amount to put in except on a new trans and new converter.

    Put in four or five quarts, fire it up and start checking and adding until you get it to the right level.
     
  9. 53 COE
    Joined: Oct 8, 2011
    Posts: 688

    53 COE
    Member
    from PNW

    12qts capacity unless you have a deep pan - then it's even more.....
     
  10. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    It seems if you research it that the actual capacity of a dry TH350 can be anywhere between 8 and 12 quarts, depending on the source of the information. The shop we use said 10 and when I looked at our motor manual it said 10, but here is what TCI says on their website:

    http://www.tciauto.com/tc/fluid-capacity

    Other places say different, up to 12 quarts with a stock pan. So yes, put in 8-10 and then fill to the full mark on the dipstick.

    Don
     
  11. nwbhotrod
    Joined: Oct 13, 2009
    Posts: 1,243

    nwbhotrod
    Member
    from wash state

    Remember the tran fluid will expand when the trans get hot so dont over fill cold. dont ask me how i know
     
  12. Sumfuncomet
    Joined: Dec 31, 2011
    Posts: 578

    Sumfuncomet
    Member

    Do what Don said! Capacity will vary slightly depending on size of trans coole, size and length of cooler lines etc. the key thing that you already did was fill converter before installing! Ten quarts and then check it....cycle through the gears. Goferit!
     
  13. slammed
    Joined: Jun 10, 2004
    Posts: 8,151

    slammed
    Member

    Dude, thats why you sneak up on the mark. It is not cut and dry #'s.
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.