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05-28-2016, 10:53 AM | #1 |
Registered User
Join Date: Jun 2014
Location: Lavonia, Ga
Posts: 21
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Removing Aftermarket Trailer Brake Unit
The PO installed an under-dash mounted trailer brake assembly which I want to remove. It has a hard line connection to the back port on the proportioning valve which will need to come off. The trailer brake add-on 'T' screws into the prop valve, then the original line screws into that 'T'. I've already installed new front pads/calipers, rear shoes/cylinders and bled the entire system with new fluid and have great pedal.
Since the extra connector is right at the proportioning valve, will I need to worry about getting air into the valve and/or master cylinder or will I just need to re-bleed the system and be done? It looks like the back port may go to the rear wheels only so would I be able to just bleed the rear wheel cylinders or will I end up with air in both front and back? When I pull the fitting out of the prop valve, is that an open path for the master cylinder to drain or is there a check valve somewhere in the circuit that would keep it from free flowing? Sorry for so many questions, but being what brings me to a necessary halt I want to get the brakes back to full function. Thanks. |
05-28-2016, 12:02 PM | #2 | |
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Join Date: Feb 2010
Location: Harrah, Washington
Posts: 323
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Re: Removing Aftermarket Trailer Brake Unit
Quote:
Keith
__________________
71 Blazer 4X4 (unmolested, all original (including paint) 74,000 mile barn find) 67 Camaro RS SS (unmolested, all original (including paint) 81,000 mile barn find) Keith Riel |
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05-28-2016, 03:30 PM | #3 |
Registered User
Join Date: Dec 2009
Location: bisbee, arizona
Posts: 1,529
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Re: Removing Aftermarket Trailer Brake Unit
the rear portion of the mastercylinder is the primary side. it goes to the front brakes,
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05-28-2016, 03:34 PM | #4 |
Senior Member
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,630
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Re: Removing Aftermarket Trailer Brake Unit
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05-28-2016, 05:01 PM | #5 | |
Registered User
Join Date: Jun 2014
Location: Lavonia, Ga
Posts: 21
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Re: Removing Aftermarket Trailer Brake Unit
Quote:
p.s. Fellow geetar guy |
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