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66 power brake line fittings

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Old 07-24-2013, 01:09 PM
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rgbau140
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Default 66 power brake line fittings

I have been attempting to get a pedal on my car since May11th when I replaced all 4 calipers, all 4 rubber lines and had the mc resleeved. I have gravity bled, mityVac sucked, pedal bled (engine running & not) and bought a Motion power bleeder.In all cases I can get a pedal til the engine starts and the power booster get vacuum, then the pedal goes to the floor. I would like to plug the the front line at the mc and then the rear line to see if I can isolate the problem - front vs back. then block the line side to side to see if I can isolate the particular caliper. I have attempted to find a plug that will fit where the brake lines enter the mc, but I dont have a clue as to what size/type of fitting I need - npt,npst,tampered, whatever. I believe the line coming off of the mc is larger than the lines that go from the line blocks to the individual calipers - 1/4 at the mc & 3/16 at the calipers. hopefully someone knows the correct size and type
Old 07-24-2013, 05:39 PM
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vark_wso
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For 1/4" dia brake pipe, the inverted flare fitting threadform is 7/16-24.
For 3/16" dia, it's 3/8-24.

From Jegs Performance:

http://www.jegs.com/i/JEGS-Performan...ductId=1403915
http://www.jegs.com/i/JEGS-Performan...ductId=1403915

(I can't get the links to work properly, but both size plugs are available in Jegs 'brake line fittings for hard lines'

Last edited by vark_wso; 07-24-2013 at 05:42 PM. Reason: Clarification
Old 07-24-2013, 08:23 PM
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rgbau140
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Thanks! just picked some up at at Williams Filters in Tacoma

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