OK, here is an annoying little problem I hope you can help me with:
From my 700R4, I use OEM hard lines, and then I use rubber lines to get to the rad and auxiliary cooler (nothing special here!).
As I have always done, I slip a bit of the rubber hose over the hard line and use a clamp to hold them together: on all my other cars, it has worked just fine.
Except that on my truck, trans fluid keeps leaking at that connection: I have even over an inch of rubber over the hard line and 2 clamps, but it has not done anything, it just leaks, you can see the drops, regularly.
Anyone has a trick to solve that? I had the same set up on all my other cars, and never a leak before!
Thanks!
I have had the same problem on my pickup. I solved it by lightly scoring the steel tube with a tubing cutter, just cut slightly into the steel, not too far. Put 4 or 5 cuts. Then I used a couple of heavier duty clamps on it.
Those clamps are awesome, sometimes hard to find. Last time I needed them, I found them located around the EFI high pressure rubber hose/lines.
So much better than the stamped steel gear clamps.
Did you cut off the threaded end off the hard line ? I did away with the radiator cooling lines. I just cut the lines from my tranny to be only 12 inches long. I then straightened them to fit past my pipes. I then had ends farrowed larger. Then when my hoses to the tube cooler is attached, they make a better seal. I use small full wrap around hose clamps. If you don't farrow the ends, pressure will push those hoses off those lines some time down the road.
If you have access to a flaring tool then put just a small flair in the end of the line. Slide your heavy duty clamp and presto no more leak and no more possibility of the hose blowing off the line from pressure.
If you have a flaring tool that does bubble flairs use that it works great.
Well, it turns out that, after following your good ideas, the only way to solve that leak was to change the rubber hose... I guess it was cracked inside where the clamps were tightened... Live and learn...
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