Manual C-4 Tranny leak
- Thread starter Red66GT
- Start date
SadbutTrue
Founding Member
manual C4 eh? I'm pretty sure the C4 is an auto tranny heh...
But yes, C4s have been known to leak for no apparent reason.
But yes, C4s have been known to leak for no apparent reason.
The V8 transmissions were:
3spd Ford Toploader (standard on V8's)
4spd Ford Toploader (optional on V8's)
4spd Borg-Warner T-10 (optional on V8's)
Ford C4 3spd automatic (optional on V8's).
If you ordered a 4spd on a V8 in 1966, you could get either the Toploader or the
T-10, depending on what Ford felt like giving you.
If you could find out where the leak is coming from and post that info here on SN, I'm sure someone could make an educated guess as to what seal is leaking. There are a few seals that should be fairly easy to do, but some require removal of the
transmission, the transmission valvebody and some of the valvebody's TINY parts.
To find the leak, you probably need to clean the underside of the car and pay close attention to where fluid is coming from. Cleaning the car is important because the fluid could get whipped around by moving parts and make the leak look like it was coming from somewhere else.
I hope this helps you.
--Kyle
Edit:
OOPS!! You said manual transmission! They dont have valvebodies, but the rest of it applies except my reference to valvebodies.
3spd Ford Toploader (standard on V8's)
4spd Ford Toploader (optional on V8's)
4spd Borg-Warner T-10 (optional on V8's)
Ford C4 3spd automatic (optional on V8's).
If you ordered a 4spd on a V8 in 1966, you could get either the Toploader or the
T-10, depending on what Ford felt like giving you.
If you could find out where the leak is coming from and post that info here on SN, I'm sure someone could make an educated guess as to what seal is leaking. There are a few seals that should be fairly easy to do, but some require removal of the
transmission, the transmission valvebody and some of the valvebody's TINY parts.
To find the leak, you probably need to clean the underside of the car and pay close attention to where fluid is coming from. Cleaning the car is important because the fluid could get whipped around by moving parts and make the leak look like it was coming from somewhere else.
I hope this helps you.
--Kyle
Edit:
OOPS!! You said manual transmission! They dont have valvebodies, but the rest of it applies except my reference to valvebodies.
67GTFastback
Founding Member
There are 3 main places to check and it is easiest to pull the tranny to do it, which may lead to a complete rebuild if it is a toploader.
1) The input shaft seal right behind the bearing retainer on the front of the tranny, which would leak from the inspection plate at the bottom of the bellhousing.
2) The tail shaft housing gasket, usually happens when the gasket dries up.
3) The output shaft seal, where the driveshaft slides into.
If it is 1 or 3, these could be caused by too much play in the bearings (meaning they're weak) leading to a rebuild. Good luck.
PS, only the output shaft seal is easily replaced without removing the tranny.
1) The input shaft seal right behind the bearing retainer on the front of the tranny, which would leak from the inspection plate at the bottom of the bellhousing.
2) The tail shaft housing gasket, usually happens when the gasket dries up.
3) The output shaft seal, where the driveshaft slides into.
If it is 1 or 3, these could be caused by too much play in the bearings (meaning they're weak) leading to a rebuild. Good luck.
PS, only the output shaft seal is easily replaced without removing the tranny.
67GTFastback
Founding Member
Red66GT said:
It will probably just continue to seep out, but as I mentioned above, it could be the symptom to a larger problem.
pabear89
Active Member
Don't forget where the shift rod come thru the housing, 
they sometimes seep there too.
As long as it does not gush out it may last awhile.
PB
they sometimes seep there too.
As long as it does not gush out it may last awhile.
PB
Similar threads
