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-   -   AN Fittings Leaking (http://www.clubcobra.com/forums/all-cobra-talk/86444-fittings-leaking.html)

cobralee 03-29-2008 10:11 AM
AN Fittings Leaking
 
My oil cooler uses AN fittings going into pipe thread fittings. No matter how firm I tighten it, oil still dribbles out. I'm considering using pipe tape or other thread filler or something. Anyone out there have any suggestions?

Thanks,

Ron

Scott S 03-29-2008 10:28 AM
Is the fitting leaking in the adapter going to the cooler or on the JIC fitting side?

Scott S

cobralee 03-29-2008 01:31 PM
AN Fittings Leaking
 
It seems to be leaking where the adaptor is going into the pipe threads of the oil cooler.

brettco 03-29-2008 01:51 PM
I've had leaks through liquid thread sealant-teflon tape works much better.

Jerry Clayton 03-29-2008 02:14 PM
If it is leaking at only one fitting,it is a coinsident---if it is leaking at both fittings you probably are using fittings with the wrong kind of threads---tapered pipe, str pipe, British, and/or straight AN.

Scott S 03-29-2008 02:47 PM
Thread tape could work fine there, but I am kinda with Jerry.

You may have a straight AN fitting that is meant to be fit with a o-ring. They will screw into pipe threads and leak.

Scott S

Roscoe 03-29-2008 04:18 PM
If you have the right fittings I suggest teflon paste instead of the tape.

Roscoe

cobralee 03-29-2008 04:44 PM
Thanks for the input. I did go with the teflon paste instead of tape, with the fear that small pieces of tape could break off into the oil. I'll check tomorrow to see if it leaks.

Thanks again,

Ron

GlynMeek 03-29-2008 07:13 PM
I had the same problem...used Teflon tape...worked PERFECTLY!

Glyn

Rick Parker 03-29-2008 07:21 PM
Look at the tapered face on the nipple, for a perfect seal snug the nut down and gently twist the tube back and forth. Then disassemble, there should be a scribed line completely around on the tapered face. Any irregularities are potential leakage spots.


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