TOTAL fluid for a Torqueflite 727

[vso737]

My calculations indicate that the TOTAL transmission fluid to be used in a newly rebuilt BIG BLOCK 727 with an 11" torque converter and an external transmission cooler is approx. 9 1/2 quarts. I'm giving the hard lines and cooler one quart which is included in the 9 1/2 total.

Anyone have a different number................

LG,
Mike

 

[Big John]

Put 8 quarts in. Fire up the car and with your foot on the brake, shift it through each gear. Leave the engine running, trans in neutral. Add fluid 1/2 quart at a time until the stick is wet between the end and the "add" mark.

Drive the car and get the trans warm and check again in neutral.

Keep in mind that overfilling is not good for the trans. If the level is too high, it hits the rotating assembly and foams up. The valve body needs good fluid without foam to work.

 

[vso737]

Well, chasing my trans. leaks did NOT reveal the origin.............BUT, my hunch was right on the money. The FLUID is dripping from the bell housing due to the trans. being OVERFILLED.............NOW, my question is, ¿Is my CROOK that incompetent or did he do it on purpose to get my car back into the shop?? I tend to lean towards the latter.

I remember a trans. GURU told me once to put 5 quarts in my 700R4 trans when it was completely empty. He told me to check the fluid level and that the spot on the dip stick would be the FULL location and for me to mark that spot for future use.
The 700R4 calls for 6 quarts and the Torqueflite 727 calls for 5 quarts. Keeping these figures in mind, I drained the 727 via the drain plug and reinstalled 4 quarts in the transmission. The car runs much better now and the leak is gone...............
I ended up removing 2 quarts overall.
I still have to drive it some more and recheck the fluid level- YES, trans fluid HOT and the car idling in NEUTRAL ..............It may still be a little on the overfill side.

LG,
Mike

 

[Big John]

Chances are good the mechanic (and I use that term loosely given the circumstance) checked the fluid in park.... or just dumped in a half dozen quarts and called it a day.

 

[vso737]

Hi Big John.
Your avatar always reminds me of the avatar I often use with my emails. SEE ATTACHED..........

I decided on the gauges. I made a POD to replace the ASHTRAY.........no "offense" meant for you SMOKERS out there, BUT this MONSTER will NEVER have a smoker in the car as long as I'm alive. Having dealt with CANCER the entire 2002, my wife's, right tonsil and 12 lymphnodes removed (extensive treatment.........still sees a specialist to this day) on her neck, ALL due to her being a part-time smoker in her youth to early adulthood. At least that is what the Oncologist attributed it to.
NEEDLESS to say, we stay as far away from smoke as possible.

Having said that...............I replaced the ASHTRAY and will be installing two gauges in its place. A water temperature gauge and an oil pressure gauge. I have them on order and can't wait to instll them. The POD I made came out just the way I expected it to...........I'm sure someone out there must have done something similar by now............Beats having the guages hanging from underneath the dash.

I will be posting some pictues once I have them fully mounted.

LG,
Mike