4AGE 20V Blacktop

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Diary of Swap
Cooling System


85/6 4AGE -> 4AGZE

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Air Intake Filter
Clutch Slave Cylinder
Clutch Master Cylinder
Coolant Flush
Distributor O-Rings
Exhaust Manifold
Fuel Filter
Fuel Pump Cut-off Switch
Ignition Timing
Oil Cooler Hoses
Oil Filter Adapter O-Rings
Oil Pan Gasket
Oxygen Sensor
Radiator Removal
Throttle Body Cleaning
TPS Adjustment
Water Pump


87+ Brake Upgrade
Caliper Rebuild-Front
Caliper Rebuild-Rear
Dust Shield Removal
Parking Brake Cable
SS Braided Brake Line


Ball Joint Replacement
Bushings Install - Front
Bushings Install - Rear
Steering Knuckle Removal
Struts/Springs - Front
Struts/Springs - Rear
Sway Bar End Links


87+ Antenna Replacement
Clear Turn Signals - Front
Clear Turn Signals - Rear
Door Hinges
Interior Door Triangles
Interior Headliner Painting
Interior Trim & Light Lens
Power Window Regulator
Rekeying Trunk Lock
Rust PM - Battery Bracket

Rust PM - Front Wheel Wells
Seats - MK3
Seats - Aftermarket
Shift Boot

SideMarker Mod

Sunroof Rattle
Wiper Switch


2006 Austin
2005 Austin
2005 Topeka NA2005
2004 Galveston
2004 Chattanooga SE2004
2003 Galveston
2002 Austin


Suspension Setup Pics
My MR2 Diary
Latest Pics of My MR2

Front Caliper Rebuld Page 1/2

Page 1 and 2

I'll try to go about explaining the caliper rebuilds. However, this was during my suspension rebuild, so some of the pics may look weird...

Tools needed:

  • Various sockets and wrenches
  • Screwdriver
  • Rebuild kit ~$20(Toyota part # 04479-32011)
  • Air compressor (to remove caliper piston)
  • Denatured alcohol or brake fluid to clean parts


Front Removal

Here's the front rebuild kit, about $15 from local auto parts store.


1) Loosen lugnuts, raise and support front of vehicle. Remove lugnuts and wheel.


2) Drain the brake fluid pressure from the bleed valve on the caliper. Place a hose over the valve and use an 8mm wrench to loosen the valve.

3) Remove the two 12mm bolts that hold the caliper to it's mounting bracket.

4) Remove the 14mm banjo bolt holding the brake line to the caliper. Expect some brake fluid to leak through.


5) Here's some pics of the caliper removed.


6) Push the slider out one side of the caliepr. I just used a pair of pliers as shown below to do this.


7) It should pop loose, then you can pull it the rest of the way out


8) Remove the 2 rubber dust boots.


9) Inside the caliper, you will see a collar. Remove this.


10) Do the same for the other sliders, and here's the parts you will have removed.


11) Use a small screwdriver to pry out the piston set ring.


12) Pull out the piston boot.


13) Remove the piston from the cylinder with compressed air connected to the banjo bolt hole. Tighten the bleeder valve and make sure to place a block of wood or a rag inside the caliper, so that when the piston pops out it is not damaged. And believe me it will POP.


14) Pry out the piston o-ring with a small screwdriver. Be careful not to score the cylinder walls.


15) Just a pic of the cleaned up calipers after under a brass cleaning wheel.


16) Clean the sliders and collars in denatured alcohol or clean brake fluid.


17) Also, clean the inside of the cylinder and the piston with denatured alcohol or brake fluid.


Goto Page 2 for the installation of the kit.

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Thanks for Visiting! - Eric Southers

Disclaimer: This web page in no way replaces the MR2 repair manual. Follow what it says before me. The purpose of this page is to give you a better pictorial description of what to do. I cannot be held responsible for any mishaps caused by this web page.