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Author Topic: borg warner T10 leaking  (Read 747 times)
nwrclint2000
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my 1980 Indy Pace Car


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« on: January 24, 2013, 07:12:17 PM »

Fluid is coming out of the input shaft...pulling hair out...how hard is it to change the gasket?
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My name is Clint and I'm a recovering addict. I used to be addicted to Japanese food. That is all.

77 Firebird Formula 301 T-Top Brown
77 Trans Am Z-Code Black on Black
78 Firebird Formula 301 Hardtop Martinique Blue
1980 Trans Am Indy Pace Car(my new girlfriend)
LilSki
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« Reply #1 on: January 24, 2013, 08:48:06 PM »

I'm not 100% certain on this but I'm pretty sure all you have to do is take off the 4 bolts for the front bearing retainer. There should be a seal in there along with the outer gasket. Shouldn't have to take the whole trans apart.
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Kevin
79 Trans Am: (77 nose), WS6, M-21, 461, Hotchkis TVS, PTFB Contol arms. 
85 Trans Am: Vortec 350 w/LT1 cam/T56, TPI conversion w/Megasquirt II.
skywalker
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TA 400 4Speed


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« Reply #2 on: January 24, 2013, 10:41:55 PM »

mine was leaking there also, after the T10 was rebuilt, place i bought the overhaul kit from said, replace seal & gasket & don't overfill fluid level, 1/2' below was acceptable, it fine now  Cool
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Best of Luck
Luke

Melbourne Australia
nwrclint2000
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my 1980 Indy Pace Car


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« Reply #3 on: January 25, 2013, 06:53:00 AM »

How hard was it to swap the gaskets?
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My name is Clint and I'm a recovering addict. I used to be addicted to Japanese food. That is all.

77 Firebird Formula 301 T-Top Brown
77 Trans Am Z-Code Black on Black
78 Firebird Formula 301 Hardtop Martinique Blue
1980 Trans Am Indy Pace Car(my new girlfriend)
skywalker
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TA 400 4Speed


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« Reply #4 on: January 25, 2013, 04:19:04 PM »

Tranny out, 4 bolts to change gasket & seal, Also i was paranoid i put some small amounts of silicone sealant on the bolt threads Laughing
i hate oil leaks  Cool
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Best of Luck
Luke

Melbourne Australia
nwrclint2000
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my 1980 Indy Pace Car


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« Reply #5 on: January 25, 2013, 04:22:49 PM »

Any leaks since?
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My name is Clint and I'm a recovering addict. I used to be addicted to Japanese food. That is all.

77 Firebird Formula 301 T-Top Brown
77 Trans Am Z-Code Black on Black
78 Firebird Formula 301 Hardtop Martinique Blue
1980 Trans Am Indy Pace Car(my new girlfriend)
skywalker
Active Forum Member
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Posts: 29


TA 400 4Speed


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« Reply #6 on: January 25, 2013, 05:17:47 PM »

3 months of regular driving its fine now, reverse lever o ring needs replacing, extension housing needs to come off, will do that when i put a new clutch in it, I've had my fair share of oil leaks from this ST10, both selector shaft seals & side cover gasket, two rear extension housing seals, All G@@d now, got my bits from this place,

http://www.kajunjon.com/
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Best of Luck
Luke

Melbourne Australia
LeighP
Jedi Council
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« Reply #7 on: January 25, 2013, 07:57:10 PM »

If theres a breather anywhere on the top of the box, make sure its not plugged with dirt etc.....Don't know about ST-10s, but I've seen gearboxes and transfer cases leaking before due to a plugged vent.
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Regards,
Leigh

Sydney, Australia
Former Firebirds -
1971 Pontiac Firebird 455
1977 Pontiac Trans Am
1976 Pontiac Trans Am
1967 Pontiac Firebird 400 convertible
1967 Pontiac Firebird 400 coupe

tajoe
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« Reply #8 on: January 25, 2013, 10:40:41 PM »

Are you sure it's the input shaft leaking? Muncies and ST-10s counter-shafts are supported at the front of the (aluminum) case by a predrilled hole. When this hole becomes "baggy", it'll tend to drip out the front of the tranny. not saying this is your problem, but something to check while your tranny is out, and you're sealing your frt brg retainer.
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