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RWD - New pads? Resurface Rotors / New Rotors. How's that Brake Fluid? Black?

Volvo RWD 200 Forum

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New pads? Resurface Rotors / New Rotors. How's that Brake Fluid? Black? 200 1992

If new pads, resurface the current rotors, or, if too thin, new rotors. Call around to different tire / brake / muffler shops and see how much they charge to resurface used rotors. You do this so the rotor with new surface and new brake pads wear in together.

Front hub service include hub bearing (free play, torque of around 2 ft-lbs or 25 in-lbs at the castle nut [I rotate the hub with wheel / tire on] and seal where the seal lips point away from the 240 center line. Rear wheel hub includes parking brake shows and assembly. Also, around every 50k miles, the rear wheel hub inspection and grease pack or hub replacement. Nearly everyone that owns RWD Volvo never services the rear hubs including rear wheel hub grease pack (cleanse, and new NLGI 2 grease). I use Amsoil grease. The Volvo hub grease in the not so small tubes is good as it is factory.

Last set of rear rotors for my 1992 Volvo 240 GL came from AutoZone. The pads were Duralast ceramic. Won't use metallic pads at all anymore. Made by Brembo brake pads and rotors - made in China, yet not awful as they used to be, so far. China quality improves, I guess. Brembo is made in China, now, so not that great Italian steel, yet not the rotten junk alloys China serves up for export as they did through the 2000s. Zimmerman may still be German? No need for that silly cross drilled / slotted warps easily rotors.

Flexible brake lines? ATE is OEM. If very high miles on in a rusting state, the outer rubber lines can crack. Is a state with safety inspection, best to replace. Usually rust at the unions. If black brake fluid, flush it soonest. Black brake fluid leads to seized brake calipers and brake line corrosion.

Use DOT 4 brake fluid. Flush every two years. You can use DOT 3 as the stupid Walmart stores here in St. Louis, MOe show their cheapo SuperTech DOT 4 in quart bottles for 'free pickup today' yet never on the always vacant shelves (throughout the stores). Made by Prestone, I guess. So I used DOT 3 for my Super 1992 Volvo 240 ABS Brake Fluid Flush. Will flush again with DOT 4 in a year. Have to do the 1991.

Do not use the brake pedal to bleed. Do not depend on gravity bleed as some do.They usually open easily, yet can rust to a bond to the caliper. So, a tap-tap at the end usually breaks the bond, at least for me. The brake bleeder nipples are sort of frail. See the FAQ (click above) for more info.

Use a pressure bleeder such as Motive Power bleeder, no need to bench bleed a new master cylinder. I tap the brake fluid after opening the bleeder nipple several times to move the piston in the MC bore so force out trapped air. About 20 PSI does okay in the pressure bleeder.

Some images for you.


Saw the leak. Wrapped in napkins. No spill there. Brake fluid will ruin painted finish.




Right rear brake caliper. Goes (as you sit in Volvo) LR, RR, RF, LF for ABS 240, 700, 900 ... See the FAQ for brake and ABS Brakes.


If bleeder nipple cap is rotted or missing, get new. A MUST so the bleeder nipple does not corrode over time and seize with the caliper threaded bore.


Bleeder cap remove. All is shiny and well. 8 mm line wrench with 8 mm open and box end. Clear vinyl tubing (3/8" OD?) and a clear quart glass jar (Schnuck's brand hot sauce is best. I love hot sauce. Great with buttermilk!). New clear fluid appears the power bleeder pushes out old fluid with new. I like to tap the break pedal 3 or so time enough to feel resistance yet no more than 1/3 travel.


Detail.


Better view? Old Sony DSC-S30 camera from 1999. Had the EV set at 2.0, so why the washed out images.


After you close the bleeder nipple, use brake parts cleaner (dunno if chlorinated or non-chlorinated is best). Also, spay out the inside of the nipple to clear away any remaining brake fluid. If not, brake fluid 3, 4, 5.1 is hygroscopic, drawing water in, becoming more corrosive, and can rust the inside of the bleeder nipple causing it to seize in the threaded bore in the brake caliper cast carbon steel material.

Some may spray a light water displacing preparation in the bore to further prevent corrosion. Something that won't ruin the synthetic rubber bleeder nipple cap.


Glass bottle with the old. New in the brake system. New fluid in the bottle is towards the top as is lighter. Older fluid has some water in it and so sinks. Flush exchange was one quart, exactly, for the 1992 240 ABS. All 1992 have ABS in North America and maybe worldwide?

Use the 91% Isopropyl to rinse the brake fluid from the power bleeder.


Beauty pass.


Everything Gruit, nearly. My 1991 Kittys Grey Volvo 240.
W/ Taxoplasma Abundant and Incidental Naps. The irreverence.
Right, Sarah Fenske?


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New '92 240GL--What to look out for? [200]
posted by  someone claiming to be baumer  on Wed Jul 27 05:07 CST 2005 >

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