Hey all,
I have a question about a tranny fluid leak. How high can you mount your oil cooler, if you mount it too high can it cause the transmission to lose fluid out of the overflow?
I have my cooler mounted in front of the radiator towards the top. I am still running the cooler in the radiator in line with the Aux. cooler. I lose fluid but it comes out of the overflow.
any suggestion, appreciated.

HeavyMetal (Rod)
1977 F100 429CJ bored 30 over, Heads milled 30, edelbrock performer cam, intake, lifters, valve springs, Flat top forged pistons, polished and ported, Holley 750 Legacy, Hooker Super Comp. headers with dual Hooker Comp. exhaust and Hooker dual resonators, B&M C-6 racing tranny, with a TCI Breakaway 2600 flash stall converter, 9" rear with 2-72 gears.

 

>Hey all,
>I have a question about a
>tranny fluid leak. How high
>can you mount your oil
>cooler, if you mount it
>too high can it cause
>the transmission to lose fluid
>out of the overflow?

[font size="3" color="#191979"]
What are you referring to "out of the overflow?" Radiator engine coolant overflow tank? What year truck?

You should be able to mount it as high as you want - even on the roof if you really wanted to. As long as there are no leaky connections, the oil will stay in the cooler. The converter circuit has a check-valve to prevent fluid drain back.

Art

 

The overflow on top of the trans. is where the fluid comes out.
I thought since the trans holds about 11 quarts and the remote cooler is sitting so high that some fluid would creep back into tranny and cause it to run out of the overflow.
If that is not it, then could I be overheating the fluid and causing this condition?
It is approx. the same amount of fluid everytime. I will refill it then drive, next morning same amount of fluid again.
Any help......thanks.

HeavyMetal (Rod)
1977 F100 429CJ bored 30 over, Heads milled 30, edelbrock performer cam, intake, lifters, valve springs, Flat top forged pistons, polished and ported, Holley 750 Legacy, Hooker Super Comp. headers with dual Hooker Comp. exhaust and Hooker dual resonators, B&M C-6 racing tranny, with a TCI Breakaway 2600 flash stall converter, 9" rear with 2-72 gears.

 

I've never seen an auxiliary cooler thah held more than a quart or so. There is plenty of room for that in the transmission housing, even if it were to drain back. Check the band servo housing cover. If it's leaking, it will leak the same amount every time you stop for a while. Also a leak in this area will look like it's coming from the vent.

 

thanks stingray, I will check on that.

HeavyMetal (Rod)
1977 F100 429CJ bored 30 over, Heads milled 30, edelbrock performer cam, intake, lifters, valve springs, Flat top forged pistons, polished and ported, Holley 750 Legacy, Hooker Super Comp. headers with dual Hooker Comp. exhaust and Hooker dual resonators, B&M C-6 racing tranny, with a TCI Breakaway 2600 flash stall converter, 9" rear with 2-72 gears.