Transmission Cooler Line Leaking With Possible Fix

[avalonandl]

My coolr line is weeping slighlty.

 

[TheAutumnWind]

I had to do this same fix. WOrks!

 

[Jason in DLH]

My coolr line is weeping slighlty.

I have a lot of these types of fittings leaking and I noticed that the actual hose isn’t damaged at all (unless microscopically). For the rest of them I’m simply going to try and clamp the OEM fittings tightly to see if that solves the problem. My clamps don’t come till Nov 4th though and I think it’ll take a long time to see if just by clamping them will solve the leak problem.

 

[Bob2C]

I have a lot of these types of fittings leaking and I noticed that the actual hose isn’t damaged at all (unless microscopically). For the rest of them I’m simply going to try and clamp the OEM fittings tightly to see if that solves the problem. My clamps don’t come till Nov 4th though and I think it’ll take a long time to see if just by clamping them will solve the leak problem.

I always thought about using clamps on the crimp connection if mine ever develop a leak. I don’t see why it wouldn’t work.


Sent from my iPhone using Tapatalk

 

[swathdiver]

My clamps don’t come till Nov 4th...

What does the tool look like?

 

[Jason in DLH]

These clamps seem like they’ll do the trick ...

 

[exp500]

I don't like no barb on tube, my reference would be a JIC fitting like this or AN. There a few compression sleeve stles that fit these hose ends.https://www.mcmaster.com/52305K23

 

[Jason in DLH]

Looks like a good product and not nearly as costly as AN fittings was going to cost me!

 

[TheAutumnWind]

I don't like no barb on tube, my reference would be a JIC fitting like this or AN. There a few compression sleeve stles that fit these hose ends.https://www.mcmaster.com/52305K23

I might have to try some of those.

 

[Jason in DLH]

Well...I finished clamping up the hoses and cleaned it up slightly. I clamped up the OEM aluminum fittings as well to see if that stops the weeping. Will check on them periodically in the future to see how it’s working. Seems like it should work.

And my new best friend...

It’s a 3/8” drive with ratcheting action. The head also swivels around if you need it. Two LED lights at the end to shine some light also.

 

[Tiredmechanic23]

Well...I finished clamping up the hoses and cleaned it up slightly. I clamped up the OEM aluminum fittings as well to see if that stops the weeping. Will check on them periodically in the future to see how it’s working. Seems like it should work.View attachment 261555

And my new best friend...

View attachment 261556

It’s a 3/8” drive with ratcheting action. The head also swivels around if you need it. Two LED lights at the end to shine some light also.

I hate worm clamps but im curious as to how well it does.

 

[Jason in DLH]

What would you use in place of the worm clamps as I believe they should be a little tighter, but couldn’t as it was stressing the clamps too much.

 

[Tahoe14]

Do a Google search and look at clamps for diesel engines. They seem to be of better quality. Good luck.

 

[Jason in DLH]

Will do, thanks!

 

[Bob2C]

Any idea what size range would fit?


Sent from my iPhone using Tapatalk

 

[Jason in DLH]

I’m pretty certain I was using this size:

I could have used a much smaller diameter, but found it easier to use these.

You can see how much extra band I had. It was just easier for me as I was having a hard time reaching up there with my shoulder trying to reconnect it.

 

[Jason in DLH]

Most likely will be ordering those “diesel clamps” as they look far superior to these.

 

[exp500]

Jason, unless you remove the aluminum collar, your hose clamp has no chance. Any Idea why they use hydraulic crimpers? See the above link to a screw sleeve JIC fitting.

 

[Tiredmechanic23]

Most likely will be ordering those “diesel clamps” as they look far superior to these.

Diesel is my trade specialty lol its what I work on all day every day. Those clamps are called T-bolt clamps. They apply a more even pressure around a hose and also do not dig in. Another clamp style I like for radiators and such though is power grip style clamps that shrink fit.

Also if you know the fitting size needed in JIC most good tractor/equipment shops can crimp a JIC end on the hose for you as well and the crimps we use on equipment are far superior to those little pinch crimps from factory.

 

[Jason in DLH]

I finally researched these JIC fittings and basically the same as AN fitting only with “less exacting tolerances” and generally cost less.

I’ll be changing those horrible worm clamps out with the TBolt clamps for now to see how they hold up. Then I guess it’s on to JIC fittings if they start leaking again.

Thanks for everyone’s help! Definitely have learned a lot about Army Navy Fittings, Joint Industry Council Fittings, worm clamps, and TBolt clamps!