The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Prevent brake junction block damage while bleeding brakes 200 1985

posted by  someone claiming to be DeWayne on  Tue Feb 26 02:31 CST 2002 [RELATED]

I'm in the process of replacing all the brake pads on my '85 240 and doing a complete system bleed/flush with new brake fluid. I don't have a pressure bleeder and I've read the archives here about the piston in the junction block moving while the brakes were being bleed and causing seal damage.

I have both the Haynes and Bently manuals. The Haynes simply says to remove the switch from the warning valve giving few details how to do that. I could find no reference in the Bently manual about removing the switch before bleeding the brakes.

So my question is, will removing the plastic cap from the junction block and disconnecting the wires to the switch prevent the piston from moving while bleeding the brakes? I have the feeling that if the piston moves, the junction block on my '85 will be toasted and I don't want to drop another $100 for a new one if I can prevent damaging the one in the car.

BTW, I removed the master cylinder reservoir and dumped the old fluid and cleaned out as much crud as I could. Cleaning the rear section was a major PITA! I couldn't get it all out but I got most of it and the reservoir looks much cleaner. I reinstalled the reservoir and filled it with fresh DOT4 brake fluid and I'm ready to start bleeding the rest of the system but don't want to start doing that until I have a clear understanding about the actuator safety valve.

Thanks in advance!

DeWayne






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.