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06-28-2006, 12:36 PM
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#1 |
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still buypickupparts
Join Date: Sep 2003
Location: charlotte
Posts: 637
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81 swb fleetside
I am hoping you guys can give me some help!. my brakes are soft, no panic brakes!!!!! what am I missing??. Ive bleed them off several times, no change, Ive exchanged the master cylinder no change. the truck has disk on the front and drum on the back. anyone else have this problem ?
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Its Gonna be a Great Day, I woke up this Morning. 72 SWB Fleetside freshly painted. putting a 94 LT1 with 700R4 tranny lowered 4 in the front 6 in the back 81 chevy half ton 350 89 Silverado 4x4 going ta church truck |
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06-28-2006, 04:07 PM
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#2 |
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7000 #'s of american IRON
Join Date: Dec 2004
Location: north tx
Posts: 883
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Re: 81 swb fleetside
Did you bench bleed the MC when you put it on? Is it losing fluid, like a bleeder screw or a line is loose? Wheel cylinders?
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06-28-2006, 04:47 PM
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#3 |
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still buypickupparts
Join Date: Sep 2003
Location: charlotte
Posts: 637
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Re: 81 swb fleetside
New rear wheel cylinders, I just replaced wheel bearings this past weekend and the brake lines looked dry, the M/C had been bench bled prior to mounting on the truck, but before the new M/C the brakes were always soft and no panic brakes
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Its Gonna be a Great Day, I woke up this Morning. 72 SWB Fleetside freshly painted. putting a 94 LT1 with 700R4 tranny lowered 4 in the front 6 in the back 81 chevy half ton 350 89 Silverado 4x4 going ta church truck |
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06-28-2006, 06:26 PM
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#4 |
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Sb 400 club
Join Date: Nov 2005
Location: NH / MA
Posts: 2,741
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Re: 81 swb fleetside
ahh mine are also soft but that is because i need new rear pads and drumbs. I am guessing you checked these but how are the pad s and rear drumbs? they may have beened turnned or worn too much.
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 1984 chevy c10, built 400sb,.(SOLD )77 K10 Project / daily driver "The Grinch" http://67-72chevytrucks.com/vboard/s...d.php?t=318363 1956 Willys Wagon (327 chevy) Project (Now Buick 225) 1980 Corvette L-48 4 speed 1992 Mustang GT built 5.0 5 speed  1985 C10 LWB Sold 1982 K10 SWB plow truck Parted out 1986 D30 M1028 fire brush truck Parted out |
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06-29-2006, 04:49 PM
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#5 |
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still buypickupparts
Join Date: Sep 2003
Location: charlotte
Posts: 637
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Re: 81 swb fleetside
The drums still have good life in them and the pads are brand new, before I put new rear pads the brakes were still spongie
__________________
Its Gonna be a Great Day, I woke up this Morning. 72 SWB Fleetside freshly painted. putting a 94 LT1 with 700R4 tranny lowered 4 in the front 6 in the back 81 chevy half ton 350 89 Silverado 4x4 going ta church truck |
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06-29-2006, 04:55 PM
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#6 |
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huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,369
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Re: 81 swb fleetside
It's a stretch but what about the rubber hoses going fron the frame to the calipers and axel? They can soften and flex over time...
Chuck
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90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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06-29-2006, 05:49 PM
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#7 |
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7000 #'s of american IRON
Join Date: Dec 2004
Location: north tx
Posts: 883
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Re: 81 swb fleetside
Was there fluid in the MC when you took it off the vise and put it in the truck? If not, theres still tons of air in the line.
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07-01-2006, 07:27 AM
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#8 |
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still buypickupparts
Join Date: Sep 2003
Location: charlotte
Posts: 637
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Re: 81 swb fleetside
if there is air in the M/C would you see bubbles in the M/C as you push the brake
__________________
Its Gonna be a Great Day, I woke up this Morning. 72 SWB Fleetside freshly painted. putting a 94 LT1 with 700R4 tranny lowered 4 in the front 6 in the back 81 chevy half ton 350 89 Silverado 4x4 going ta church truck |
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