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10-29-2018, 08:31 PM
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#1 |
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Registered User
Join Date: Mar 2013
Location: Sringfield MO
Posts: 34
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Trouble with hydro boost install
I have 1970 C20, disc brake conversion to 73+ parts, new calibers, new master cylinder, used proportion valve and an Astro van hydro boost unit.
I turn on the truck and the brake pedal sinks by an inch or two. I press the pedal and it moves maybe an inch or two. I’m getting no fluid to the calibers or the proportion valve. Before I finished installing the master cylinder, in my haste to hear the motor run I shot the rod out of the hydro boost unit. I tap the cylinder back in and put the rod and spring back in then I installed the master cylinder. How much movement should I have from my brake pedal? Could my master cylinder be locked up or the push rod not long enough? Thanks |
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10-29-2018, 10:10 PM
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#2 |
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Registered User
Join Date: Dec 1999
Location: Mid NE USA
Posts: 2,212
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Re: Trouble with hydro boost install
Did you bench bleed the master cylinder?
Ron
__________________
Member #111 68 C-10  Daily Driver70  4x4 Project76 Jeep CJ-5 Help Support the Board: http://67-72chevytrucks.com/vboard/payments.php He who knows nothing is closer to the truth than he whose mind is filled with falsehoods and errors. Thomas Jefferson |
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10-29-2018, 10:24 PM
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#3 |
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Registered User
Join Date: Mar 2013
Location: Sringfield MO
Posts: 34
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Re: Trouble with hydro boost install
No I did not.
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