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#1
04-20-2013, 12:04 PM
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need help with brake lines
I had a brake line blow out in that bracket that holds them under the ABS pump and need to fix it.
The flare fittings for the lines have 2 different US sizes bolts, what are the sizes? Does anyone know what the internal thread is for these fittings (at the ABS) or a part #? What is the order from the brake lines at the pump? What is the diameter of the brake lines? It's a 91 PA base model 
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#2
04-20-2013, 02:29 PM
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Re: need help with brake lines
Just re-use the fittings....cut the line and remove the fitting and use the fittings on the new lines(slide on the new line before making the bubble flare)....most brake lines are 3/16" going to the wheels...sometimes the lines from the M/C to the ABS pump are 1/4"....coming out they are usually 3/16"...easy to measure....
As for the order, just do them one at a time, so you don't mix them up.... In some instances, a GM scan tool is necessary to bleed the air out of the system between the pump and the M/C....
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#3
04-21-2013, 02:02 PM
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Re: need help with brake lines
The fittings are pretty rusted. The ABS housing seems aluminum. Are they prone to seize or break in this model?
Can you confirm that the break line fittings at the ABS pump are 7/16 and 17/32? I don't have these wrenches and US wrenches are hard to get overhere.
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