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View Full Version : 83 K20 brakes sticking


GREY-GHOST
02-21-2009, 04:47 PM
I have an 83 K20 and I know its the front brakes, but Im not sure if its the rears as well. It will not roll if you put it in drive or reverse. I partially bled the back brakes today, but the front bolts are stripped, so I need to get some vice grips on them. From what I hvae seen if there is air in the line it makes the brakes mushy, but these are sticking. Could it be the calipers themselves?
k20chevy 454
02-21-2009, 04:54 PM
what brake lines do you have?i would fix the bleeder screw make ur life easier
GREY-GHOST
02-21-2009, 04:59 PM
Yeah, I would like to replace them with some steel bleeders. The stock ones are so damn soft. I have just never had brakes stick from having air in the lines. So thats whats making me think it might be an issue with the calipers themselves.
GreaseDog
02-21-2009, 05:05 PM
does the truck sit for long periods of time? and does it go away after a while of driving it?
GREY-GHOST
02-21-2009, 06:09 PM
The trucks has been sitting for periods of time. I only drove it for maybe a 5-6 mile round trip. It did not go away in that period of time. When I stopped I could smell the brakes.
GreaseDog
02-21-2009, 06:52 PM
probably rust on the drums/rotors. my K20s both do it after sitting for a while, and my 92 is doing it too. with the K20s, it goes away after a while.
campaug86
02-22-2009, 01:46 AM
you need to flush out the whole brake system. brake fluid is hydrocopic meaning it absorbs water. if it sits for a while itll hold water and create rust in the calipers and in the master and lines itself. flush it completely out so she runs clear. i would also take a c clamp and compress your calipers to see if a piston is stuck. if you have to really work at compressing a piston then something is wrong. after its all said and done grease all of your sliders and pins on the front so nothing sticks. that should take care of it. most of it is basic maint.
GREY-GHOST
02-22-2009, 07:26 AM
Yeah I had a feeling I was going to be taking them apart, but its easy. Thanks for the help.
k20chevy 454
02-22-2009, 10:57 AM
replace ur brake lines from offroad design...i put mine in there braided stainless steel that are kevlar coated
GREY-GHOST
02-22-2009, 02:09 PM
I dont need kevlar coated stainless lines. I can get stainless ones made locally, but how much did yours cost?
k20chevy 454
02-22-2009, 02:11 PM
112,but those are for a 6in lift kit...the 2 fronts and the one for the back,mine came with the new banjo bolts,and the new nuts and copper washers