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08-06-2010, 01:42 PM
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#1 |
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Registered User
Join Date: Jan 2010
Location: aumsville oregon/afganistan
Posts: 89
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wtf brake delema
ok here i go .....i got my 77 chevy shortwide stock straight six 3 on the tree ...so naturally it has no brake booster ...i put drop spindles on it with newer calipers bled the system one of my weekends away from the base...i got the air out its stiff then a few seconds later its down to the floor ...will me installing a booster fix this?
on a side note when my orders are up this weekend i will be putting my built 350 and th400 with stall convertor in ...so a bosster was on the agenda.........i have never encontered this problem Last edited by 78swest; 08-06-2010 at 01:43 PM. Reason: spelling error |
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08-06-2010, 01:48 PM
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#2 |
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Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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Re: wtf brake delema
If the pedal is dropping to the floor and your sure all the air is out you need a new master cylinder.Typical symptoms for a bad master cylinder. If your planning to add a brake booster you need to get the correct master cylinder designed for power brakes.
__________________
Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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08-06-2010, 02:24 PM
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#3 |
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Registered User
Join Date: Jan 2010
Location: aumsville oregon/afganistan
Posts: 89
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Re: wtf brake delema
i know this ...it worked before
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08-06-2010, 08:53 PM
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#4 |
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Registered User
Join Date: Jul 2010
Location: st paul.mn
Posts: 11
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Re: wtf brake delema
no a booster wont cure this if they worked before the differant calipers and lines and if youre the unluckiest person you could have torn a seal in the master by going to the floor to much while bleeding if it wher me i would bleed the heck out off all 4 brakes again to make sure their isnt a problem with your new calipers and hoses
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08-07-2010, 10:14 AM
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#5 |
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Still plays with trucks
Join Date: Jul 2009
Location: Spokane, WA
Posts: 3,556
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Re: wtf brake delema
Make sure your master cylinder is full first then make sure you don't have a leaky hose or connection after that.
I had a wheel cylinder fail on me and the brakes did something similar to what you describe. If all is good then the master cylinder needs bled to get the air out of it or is bad and needs replaced.
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miSSed opportunity - ground up creation of an AWD 1994 454 SS that never was http://67-72chevytrucks.com/vboard/s...d.php?t=795577 69 C10 shortbed stepside 400 small block - built like what a super sport truck could have been 69 K20 lwb TBI 350 4L60E NP208 14-bolt Dana-44 w/disc 68 Camaro SS / RS 500hp 439 inch roller cam big block 4L80E 79 Malibu TPI 350 4L60 w/ Z28 steering & sway bars |
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08-07-2010, 01:15 PM
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#6 |
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Registered User
Join Date: Oct 2005
Location: Branchville SC
Posts: 1,647
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Re: wtf brake delema
are your bleaders on the top of the caliper or the bottom?
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2004 z71, 96 z71 on 38s, 88 Chevy k5 blazer, 4in lift. 84 swb project, 82 SWB project , 84 chevy 4x4 lwb project, 88 Jimmy beater/highschool ride. 79 c30. 99 tahoe 4x4 project. and a bunch of parts trucks.. |
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08-07-2010, 03:26 PM
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#7 |
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Registered User
Join Date: Jul 2010
Location: st paul.mn
Posts: 11
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Re: wtf brake delema
you said you got the air out and its stiff then a few seconds later its to the floor.Is this all in one motion so as you are holding the pedal and its up then does it fade to the floor?
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