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Bruno
02-24-2004, 11:44 AM
This is the picture of the tricky part.
I will be working on the complete procedure soon.

The tricky part is to get the protective boot on the calliper and the piston.
The idea is to place the boot on the piston, right at the edge then install the boot on the calliper without having the boot slipping out of the piston.
After that you can slide the piston inside the calliper.
http://www.bmwe34.net/ebay/calliper.jpg
DanDombrowski
02-24-2004, 12:01 PM
I could go for a 355ml canette of Pepsi right now. Nice pic.
Scott H
02-24-2004, 12:02 PM
1. Place the boot on the seat on the caliper first

2. Begin to slip the piston in through the boot.

3. Remove the bleed screw and used compressed air through that inlet to expand the boot around the piston as you work it in.

4. Eventually the back of the piston will hit the seal ring and you should stop using compressed air. If you accidentally use too much compressed air and the piston decides to shoot out, it may hit your fingers if they are in the way.....don't want that
Jeff N.
02-24-2004, 12:09 PM
ewww...working with hydraulic fluid is my least favorite part car work.

Well, that and working under the dash.

Well, that and when Martin farts.

yeah..that pretty much covers it.
Bill R.
02-24-2004, 12:10 PM
ewww...working with hydraulic fluid is my least favorate part car work.

Well, that and working under the dash.

Well, that and when Martin farts.

yeah..that pretty much covers it.
Tiger
02-24-2004, 01:09 PM
even old acidic coolant?
Bill R.
02-24-2004, 01:24 PM
even old acidic coolant?
rbeaud
02-24-2004, 03:53 PM
This is the picture of the tricky part.
I will be working on the complete procedure soon.

The tricky part is to get the protective boot on the calliper and the piston.
The idea is to place the boot on the piston, right at the edge then install the boot on the calliper without having the boot slipping out of the piston.
After that you can slide the piston inside the calliper.


Would a tool to help guide the seal help? Solder aid sticks work well with seals. They are made from Teflon and have a spade end and a pointed end.

Thanks for the info on the caliper rebuild. With balmy weather starting again in MS, I should be able to start mine soon. And finally use my homemade brake bleeder!