North American Turbocoupe Organization



Leaking Transmission (formerly Stupid Question...)
Not B Anymore Offline
Administrator
#1
Does Tranny fluid smell the same as motor oil when it burns? I have a leak that drips on the catalytic converter and it smells like oil burning. I had thought it was oil, but I can't find a leak anywhere, especially high enough on the motor where it could make it all the way to the back of the tranny to drip on the cat. So I figure it has to be a leak in the transmission somewhere, but I've never smelled trans fluid cook so I thought I'd check.

BTW it's rather dirty under there so I haven't really been able to determine the color of the fluid that drips on my garage floor... and my hose is frozen so I can't wash/degrease it at the moment.
Brian Leavitt
'86 TC 5-Speed -- MS2x w/COP | 83 lb. injectors | T3/T4 50 Trim Stage 3 .63AR | Full 3" Exhaust - No Cat | Motorsport FMIC | Ranger Roller | Ported E6 | Walbro 255HP | Kirban | 20psi | 120-amp 3G | 8.8" 3.55 rear | '03 Cobra Wheels
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FLSTCI71 Offline
Senior Member
#2
That's not a stupid question. I don't think I've been able to determine the difference between burning engine oil and burning tranny fluid by smell. They're both really nasty. Also, if your leak puts enough oil on your converter, other drivers will give you a lot of room. For some reason, the smoke billowing out from under your car seems to scare them. lol.
1987 Turbo Coupe - Son's car
1987 Super Coupe - Son's project car
1934 Ford - My project car
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vegas_ss Offline
Senior Member
#3
If there is fluid on the garage floor, use a white paper towel to blot some up. You should be able to see a pinkish hue around the edges of what the paper towel absorbs if it's trans fluid.
1987 TC, 5sp, Boport Stage 3 Head/2.1 Cam
1996 Impala SS
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UglyBird85 Offline
Senior Member
#4
If its oil it could be a plug that's on the back of the head I believe..or maybe the block...not sure. But I asked here and apparently there's one somewhere on the back of the motor
---Justin

87 Burgundy TC 5spd. K&N Cone filter-Walboro 255HP-.60/.63 Garret T3-Gillis @ 18psi.
SHELF: NPR FMIC-Ford Racing 42# injectors-Tripminder-
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Pete D Offline
Administrator
#5
There is an oil galley plug in the back of the head.
Pete Dunham


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Not B Anymore Offline
Administrator
#6
Yeah I checked all that. It's leaked with 2 different heads on it too. The head itself is dry all the way around. I originally thought it was leaking from the connection at the head for the turbo oil feed line because I saw a drop of oil hanging from it when I was checking over things, but I have since replaced the line with Stingers braided line and it's definitely not leaking now.
Brian Leavitt
'86 TC 5-Speed -- MS2x w/COP | 83 lb. injectors | T3/T4 50 Trim Stage 3 .63AR | Full 3" Exhaust - No Cat | Motorsport FMIC | Ranger Roller | Ported E6 | Walbro 255HP | Kirban | 20psi | 120-amp 3G | 8.8" 3.55 rear | '03 Cobra Wheels
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Not B Anymore Offline
Administrator
#7
Alright... It's definitely tranny fluid leaking. Is there somewhere high up on the T-5 that can leak so that the fluid could both drip off the bell housing and onto the cat? I can't see any fluid inside the bell housing and it's definitely not leaking where the driveshaft goes in. I'm trying to avoid removing the transmission, but it looks like I may have to.
Brian Leavitt
'86 TC 5-Speed -- MS2x w/COP | 83 lb. injectors | T3/T4 50 Trim Stage 3 .63AR | Full 3" Exhaust - No Cat | Motorsport FMIC | Ranger Roller | Ported E6 | Walbro 255HP | Kirban | 20psi | 120-amp 3G | 8.8" 3.55 rear | '03 Cobra Wheels
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