Sandblasting Calipers >Questions - Toyota Nation Forum : Toyota Car and Truck Forums

4Cyl'erThriller · 04-13-2010, 05:02 PM

Ok so Im soon going to be doing an ES300 brake upgrade all around. My questions are specifically about the ES300 dual piston caliper front brake setup. I have already cleaned the calipers a bit but I want to get them completely clean if I am going to paint them. My questions are...

1: Will sand blasting hurt the rubber dust boots?
2: I have taped up the two areas that could let sand into the fluid filled area of the caliper. Should I be worried about the area where the pistons are?

It seems to me all that tiny sand flying around at who knows what kinda speeeds could probably manage to get itself into all kinds of places it shouldnt be. Just wanted some more opinions on weather or not sandblasting is a good idea. Thanks

***LynchburgCSI*** · 04-13-2010, 05:08 PM

I really would NOT sandblast them. You have the right idea with the damage that could be done.

About the paint... caliper paint is ceramic paint. You don't have to have your caliper 100% clean. Just hitting it with brake cleaner is plenty. Ceramic paint is TOUGH stuff. It'll hold fine.

4Cyl'erThriller · 04-13-2010, 05:23 PM

Ah yeah Brake clean! WTF. Why didnt I think of that before? Yeah the front calipers I pulled from the junk yard looked terrible. They were caked in some real heavy duty grease or maybe its just a Lot of buildup over the course of the cars life. Whatever the case the grease has to go. I just want to be safe and not ruin the dust boots or anything that may ruin anything for paint. The rears I got from ya just need paint. I probably wont even dust em off.

73sport · 04-13-2010, 05:37 PM

Bone yard parts, I'd grab a kit from Bendix or Yoda and replace the seals and boots. Agreed, sand is distructive. I'd avoid balsting them. Yes, calipers can get hot, but fluid boils in the 400's (not all that hot), more than anything its a paint that's tough that can take the spray of dedris flying at it.

If you know what they came from, VERIFY the Master Cylinder is the same bore diameter and length {same part number even better!} These may take more fluid to actuate and/or screw up your brake bias for/aft. This could take a different proportioning valve to correct.
You could calculate the area of the two piston vrs the single piston this sould give you an idea if it matters at all.

Does the ES have anti locks? Does yours have them? Just be careful and do your research. Pads that wear fast could mean an empty resovoir sooner than the old system dropped down.

***LynchburgCSI*** · 04-13-2010, 05:45 PM

Quote:

Originally Posted by 73sport

Bone yard parts, I'd grab a kit from Bendix or Yoda and replace the seals and boots. Agreed, sand is distructive. I'd avoid balsting them. Yes, calipers can get hot, but fluid boils in the 400's (not all that hot), more than anything its a paint that's tough that can take the spray of dedris flying at it.

If you know what they came from, VERIFY the Master Cylinder is the same bore diameter and length {same part number even better!} These may take more fluid to actuate and/or screw up your brake bias for/aft. This could take a different proportioning valve to correct.
You could calculate the area of the two piston vrs the single piston this sould give you an idea if it matters at all.

Does the ES have anti locks? Does yours have them? Just be careful and do your research. Pads that wear fast could mean an empty resovoir sooner than the old system dropped down.

All the research has been done before. The master cylinders are the same and ABS doesn't affect the swap in this case. The proportioning valve also hasn't caused any problems in the past. I even ran es300 rears and I4 fronts and had no problems.

4Cyl'erThriller · 04-13-2010, 05:48 PM

The master cylinders are the same 1 in bore. Whats the deal with anti lock brakes? Why does it matter? What differance is there and how could I tell? I dont have em I dont think the es had em but not 100%

***LynchburgCSI*** · 04-13-2010, 05:50 PM

Quote:

Originally Posted by 4Cyl'erThriller

The master cylinders are the same 1 in bore. Whats the deal with anti lock brakes? Why does it matter? What differance is there and how could I tell? I dont have em I dont think the es had em but not 100%

There's no difference between ES300s with ABS and ES300s without ABS. Except for a speed senor, but thats not part of the caliper. The calipers are exactly the same. ABS won't affect anything.

4Cyl'erThriller · 04-13-2010, 05:54 PM

Sweet!!! Yeah, I really want to do the drop, brakes, all new inner and outer tie rods, Lower control arms bushings ect. All at the same time. Thats kinda whats holding me up from gettin the drop done. I want to bang it all out in one day. I figure while everything is all apart why not just do it once. I have to get the brakes all painted up some time this week to get them ready for the install. I cant wait for all this goodness at one time.

***LynchburgCSI*** · 04-13-2010, 06:08 PM

^ Make sure you paint the center of the rotors too!

4Cyl'erThriller · 04-13-2010, 06:42 PM

Im not too worried about them right now. The ones I got from you are painted already right?. Hey and I didnt get pads from you for the rear did I? They are ES300 from what year?

***LynchburgCSI*** · 04-13-2010, 07:17 PM

Quote:

Originally Posted by 4Cyl'erThriller

Im not too worried about them right now. The ones I got from you are painted already right?. Hey and I didnt get pads from you for the rear did I? They are ES300 from what year?

Already painted the hubs, but i'd paint the mounting surface as well. You could see some unpainted parts after the wheels were mounted. The calipers are also painted silver... but could use some better painting as I painted them while they were on the car. I included the pads with the setup. And everything was ordered remanufactured to fit a 1996 ES300.

4Cyl'erThriller · 04-13-2010, 07:28 PM

Oh cool the pads were on there? Sweet. I couldnt remember if I had seen them or not. I wish I could take off a day at work b/c thats the best time for the guy who is going to do half the work plus lend me his shop for the day. For a fee but... Ill definately need the help with all the mods I have planned.

4Cyl'erThriller · 04-13-2010, 07:33 PM

Quote:

Originally Posted by LynchburgCSI

The calipers are also painted silver... but could use some better painting as I painted them while they were on the car. I included the pads with the setup.

Ok now question about this. Did you mask off the contact area of the rotor before you painted or did you just let the brake pads take care of that. I was thinking about partially masking it off. Not getting all ADD about it but just getting it close.

***LynchburgCSI*** · 04-13-2010, 07:43 PM

Quote:

Originally Posted by 4Cyl'erThriller

Ok now question about this. Did you mask off the contact area of the rotor before you painted or did you just let the brake pads take care of that. I was thinking about partially masking it off. Not getting all ADD about it but just getting it close.

I used brush on duplicolor ceramic paint... not spray on. So i just did it while everything while it was on the car.

Word of advice... if your using brush on... you're going to get ONE use out of that brush. Even if you wash it.

4Cyl'erThriller · 04-13-2010, 07:48 PM

Nope. Ill be spraying it on. Im just wondering how much it matters if there is a little paint where the pads will be contacting the rotors.