Repair tranny cooler line with a compression fitting - Vintage Mustang Forums
 
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post #1 of 7 (permalink) Old 12-31-2018, 09:35 AM Thread Starter
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Repair tranny cooler line with a compression fitting

I had to cut and splice with a compression fitting a 3 inch section on the hard cooler line going to the rad due to a kink.

i know new lines are inevitable but just wondering if this will hold up long term until my next tranny overhaul.


not sure of what pressures im dealing with

so far no leaks. ran it around about 20 miles yesterday

1970 Mach 1 San Jose built Dec 23 1969. Marti 1 of 7. Purchased in 1987. Original family owner of the power train
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1993 GT 13,000 miles, Built 2-12-93 Bought 8/3/93 Auto, 3:27 Axle, cloth, sunroof, AC. Unmolested all original car. Purchased new 8-3-93. still has the factory windshield fluid.
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post #2 of 7 (permalink) Old 12-31-2018, 10:21 AM
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That will work. Sounds like it already does. Not much pressure in those lines.
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post #3 of 7 (permalink) Old 12-31-2018, 10:45 AM
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I fixed the same problem with hose/worm clamps.
No leaks.

Daisy is a 1967 Coupe
Painted Frost Turquoise
Styled Steel Wheels
White Vinyl Roof
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(And that big ol' 390 Engine )

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post #4 of 7 (permalink) Old 12-31-2018, 02:51 PM
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Quote:
Originally Posted by Daisy View Post
I fixed the same problem with hose/worm clamps.
No leaks.
Yet

Tranny fluid will eventually eat through fuel hose - been there, done that, got the ATF stained t-shirt.

If a hose fix is required, it's best to use a hose specifically designed for auto trans cooler line use, and use fuel injection style hose clamps.

https://www.napaonline.com/en/p/BK_7051227

Nothing worthwhile is ever quick, cheap or easy, those that can't do, complain

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FORD OE TACH HOOKUP FORD OE TACH HOOKUP w/MSD (pg 7)
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post #5 of 7 (permalink) Old 12-31-2018, 04:27 PM
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Quote:
Originally Posted by Blues Power View Post
I had to cut and splice with a compression fitting a 3 inch section on the hard cooler line going to the rad due to a kink.

i know new lines are inevitable but just wondering if this will hold up long term until my next tranny overhaul.


not sure of what pressures im dealing with

so far no leaks. ran it around about 20 miles yesterday
I repaired mine 2 years ago with compression fittings and holding fine. Should be no problem.

1966 2+2, 289 A code, AOD AT, 3.55 Currie Traction Lock, PS, PDB, AC, Pony deluxe interior & Rally Pac
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post #6 of 7 (permalink) Old 12-31-2018, 05:28 PM
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I just tore my old ones out and it had a compression fitting installed on one line that I didn't do, so it has been in place and not leaking for quite some time. The transmission itself....leaking from about everywhere it can leak from! That is on the bench getting fixed though.

1966 Mustang Convertible
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post #7 of 7 (permalink) Old 12-31-2018, 07:20 PM
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As long as the fittings aren't in a position in a line where they have to absorb a lot of vibration, a repair with them is generally permanent and the preferred method short of replacing the entire line.
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