Turning the rotors - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MylilBowTie · 11-14-2004, 07:26 PM

I was wondering if I have my rotors turned, will I need to replace the brake pads? The pads are pretty new and they where expensive (Raybestos PGs). They are maybe 3 months old if that. I was wondering if they would smooth out or if they will just cause more harm than good not replacing them.

As a side note Im also replacing the rubber brake lines and calipers. Witch may lead to new bearings and possibly another 80.00 pair of brake pads

Stingray42 · 11-14-2004, 08:02 PM

how do the pads look? if they are not very grooved, just go ahead and reuse em. you can also go out and burnish the pads to make sure everythign in workin right.

MylilBowTie · 11-14-2004, 08:07 PM

"burnish the pads" What?

The reason I have started in this direction, is there is vibration under heavy braking. I kind of think its in the rear brakes but wanted to start with the front. I have some other work that needs to be done in the front. So to me this is the prime opportunity to take care of it. I need to replace the rubber brake hoses on both sides. Calipers, Rotors turned (maybe), new bearings (maybe) and last but not least brake pads only if I really have to.

Its just like a disease and it spreads like water

Stemming all from old cracked rubber brake hoses.

patgizz · 11-14-2004, 11:10 PM

burnish = sand smooth. ive got a roll of sticky sandpaper. i stuck a strip to my work table to clean up brake pads and get them nice and flat again.

MylilBowTie · 11-14-2004, 11:11 PM

150 grit or so?

C-10volvo · 11-15-2004, 12:03 AM

if you say youre getting vibration under braking, i would have your roters turned

MylilBowTie · 11-15-2004, 12:18 AM

Yeah its kinda like ABS in a way. It grabs seems then slip for a fraction of a second then grabs again. The truck feels like it shivers is about the best way I can think to describe it. I doesn't do it as low brake pedal pressure or that I feel. But it is there under moderate to heavy braking. It is really hard to lock up the tires Ive noticed. That was before I realized I had bad brake hose lines. Im in the process of getting them fixed very soon.

bluex · 11-15-2004, 01:51 AM

When mine did that it was the rears. Go on a back road get up to about 30 or so and ease on the e-brake and nothing else. That will tell you if its the rears or fronts. Just dont slam it down hard and make sure you hold the release handle out.

piecesparts · 11-15-2004, 12:39 PM

Take the pads and scuff them on a rough concrete block, and then re-install them.

11-14-2004, 07:26 PM	#1
MylilBowTie Right turn Clyde Join Date: Nov 2002 Location: Cincinnati, Ohio Posts: 2,911	Turning the rotors I was wondering if I have my rotors turned, will I need to replace the brake pads? The pads are pretty new and they where expensive (Raybestos PGs). They are maybe 3 months old if that. I was wondering if they would smooth out or if they will just cause more harm than good not replacing them. As a side note Im also replacing the rubber brake lines and calipers. Witch may lead to new bearings and possibly another 80.00 pair of brake pads __________________ 1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI

11-14-2004, 08:02 PM	#2
Stingray42 Woot. Join Date: Jan 2003 Location: Stouffville, Ontario Posts: 2,291	how do the pads look? if they are not very grooved, just go ahead and reuse em. you can also go out and burnish the pads to make sure everythign in workin right. __________________ Clarkson 96 Chevy RCLB 4.3 2WD

11-14-2004, 08:07 PM	#3
MylilBowTie Right turn Clyde Join Date: Nov 2002 Location: Cincinnati, Ohio Posts: 2,911	"burnish the pads" What? The reason I have started in this direction, is there is vibration under heavy braking. I kind of think its in the rear brakes but wanted to start with the front. I have some other work that needs to be done in the front. So to me this is the prime opportunity to take care of it. I need to replace the rubber brake hoses on both sides. Calipers, Rotors turned (maybe), new bearings (maybe) and last but not least brake pads only if I really have to. Its just like a disease and it spreads like water Stemming all from old cracked rubber brake hoses. __________________ 1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI Last edited by MylilBowTie; 11-14-2004 at 08:17 PM.

11-14-2004, 11:11 PM	#5
MylilBowTie Right turn Clyde Join Date: Nov 2002 Location: Cincinnati, Ohio Posts: 2,911	150 grit or so? __________________ 1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI

11-15-2004, 12:03 AM	#6
C-10volvo Registered User Join Date: May 2003 Location: Lake Oswego, Oregon Posts: 1,028	if you say youre getting vibration under braking, i would have your roters turned __________________ Ken Morgan For fun: 1964 Volvo 122 For slow: 1984 Chevrolet C-10 For everything else: 1997 BMW M3

11-14-2004, 11:10 PM	#4
patgizz Registered User Join Date: Oct 2002 Location: Cleveland, OH Posts: 429	burnish = sand smooth. ive got a roll of sticky sandpaper. i stuck a strip to my work table to clean up brake pads and get them nice and flat again.

11-15-2004, 12:18 AM	#7
MylilBowTie Right turn Clyde Join Date: Nov 2002 Location: Cincinnati, Ohio Posts: 2,911	Yeah its kinda like ABS in a way. It grabs seems then slip for a fraction of a second then grabs again. The truck feels like it shivers is about the best way I can think to describe it. I doesn't do it as low brake pedal pressure or that I feel. But it is there under moderate to heavy braking. It is really hard to lock up the tires Ive noticed. That was before I realized I had bad brake hose lines. Im in the process of getting them fixed very soon. __________________ 1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI

11-15-2004, 01:51 AM	#8
bluex Registered User Join Date: Jun 2004 Location: Spartanburg, SC Posts: 1,963	When mine did that it was the rears. Go on a back road get up to about 30 or so and ease on the e-brake and nothing else. That will tell you if its the rears or fronts. Just dont slam it down hard and make sure you hold the release handle out. __________________ Paul '78 GMC Serria 15 Heavy Half. 361/NV3500/3.73. Former LWB NV3500 swap Trailing arm swap '98 ECSB Z71 daily driver -traded '03 burb. Family cruiser http://upstategmtrucks.com/

11-15-2004, 12:39 PM	#9
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Take the pads and scuff them on a rough concrete block, and then re-install them.



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