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Brakes New master cylinder, leaking at fittings

Brakes New master cylinder, leaking at fittings

Istandalone

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Posts
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Location
Oklahoma
Vehicle(s)
80 CJ5, 258, T176, D300, D30, AMC20
Put in a new master cylinder in my 80 CJ5 . The brake line fittings are leaking. just barely. tightened down pretty tight. What should I check for before buying new lines. (master cylinder to proportioning valve)
 
First,
Check for DIRT !!
Any little grain of anything between Tube Flange and Matching face in the Master Cylinder. Also DIRT between the Tube and Flange Nut.

Second, a crack in the tubing flare.

Third, sometimes these
"Best Made in China" New Master Cylinders have "Metric" cut fitting openings. And you have a "Interface" problem. Usually Metrics have a Different Tubing Nut ....but what can I say about Chineseium Quality?!
 

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