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727 issue |
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drumcrazd 
AMC Apprentice 
Joined: Oct/17/2015 Location: Ontario Canada Status: Offline Points: 35 |
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 Topic: 727 issuePosted: Jun/20/2021 at 6:32pm |
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My 727 in my73 Javelin AMX has been leaking a long time.....but it seems to leak after it sits for a bit.....after being in storage for a year and a half I've been driving it for a while and hasn't leaked at all....I checked level and it's down 1 1/4 quarts...the car shifts great......is this it's happy place where it wants to be?...I'm almost tempted not to add any more fluid......anyone else have an issue like this?
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304-dude
AMC Addicted 
Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9082 |
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Posted: Jun/20/2021 at 6:50pm |
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Are you checking the level hot or cold, and while in neutral? Being a wee low cold is expected. Hot should be within the marks on the stick.
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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billd
Moderator Group 
Forum Administrator Joined: Jun/27/2007 Location: Iowa Status: Offline Points: 30894 |
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Posted: Jun/20/2021 at 7:15pm |
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Likely leaking due to torque converter drainback......... or at least that's a possibility.
Always check these transmissions engine running, in NEUTRAL, transmission warmed up. Don't run it low, you can get foaming or worse. |
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FSJunkie
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Joined: Jan/09/2011 Location: Flagstaff, AZ Status: Offline Points: 4742 |
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Posted: Jun/21/2021 at 2:34am |
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This sort of thing often happens when the shifter shaft seal is faulty.
The oil level in a torque flite is lowest while it's running. It rises after the engine is shut off and continues to very slowly rise over the next few days or even weeks as the hydraulic systems in the transmission (mainly the converter) drain into the pan. The shifter seal is up pretty high, so it won;t often leak while running or perhaps even for a few days after being shut off, but then the level comes up high enough to leak. I would never operate the transmission below the minimum mark on the dipstick. |
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1955 Packard
1966 Marlin 1972 Wagoneer 1973 Ambassador 1977 Hornet 1982 Concord D/L 1984 Eagle Limited |
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