abs disassemble rebuild/clean out?
I Need a clue. Does anyone know how to disassemble an abs pump for 87 325is? (BMW part# 34511157011) actual vendor part#(bosh 0265200013) 12 pin connector which is mine. I think it changed about a month after my model which is July 1987 and the newer models went with a (bosh 0265200040) it only has 11 pins and so I was not going to try that yet . and the 325"e" looks different so I did not even look there. I think because of drum brakes.(If it's not someone let me know please.) I know the dealer does not want people to break these open ,so I believe the plug on the bottom of the valve body (pump)hides the screw to disassemble the part and work on the solenoids or clean out throughly. (it looks like a freeze plug of sort )
I did spend the last 2 days looking through old forums trying to find anyone who asked this or talked about this as to not to waste anyone elses time, only to find "you have to go to dealer" .
I do have front brakes, I do not have rear brakes execpt e- brake. so I started checking out the problem. pads,calipers,hoses and such... well I went to bleed the brake Lines with a pressure bleeder and the front is fine. I started to bleed the back and nothing would come out. OK so I took the tube of the brake cleaner and poked around where the fluid would come out thinking there might be a film there because the car sat for 2 years, still nothing. I shot a few squirts of brake cleaner into the caliper after removing the brass valve screw on the rear caliper ( yes with the pressure bleeder still with about 20lbs. pressure and the valve open )still nothing . I worked from the back to the front blowing out "ALL the brake lines and fittings" untill I got to the abs pump .( even the pressure regulator barrel under the brake booster).I am getting brake fluid into the abs pump front and rear inlet from the master cylinder and out of the abs pump to the front outlet line "L" and "r" but not to the "h" outlet on the abs pump which is the only line for the rear brakes. I took the abs pump and cleaned with brake fluid cleaner and air pressure. I feel the air coming through so I reinstalled but to only avale ,It still did not work. any suggestions for the solenoid activation or exercise ?(which pins to apply voltage and how much 12volts??)
This should not have anything to do with the abs light and controls under the dash or under voltage relay should it? I do not want to remove or disable the abs system.
PLease advise.
Thanks, BMWinsider
ps. don't take your car to a car wash they will wreck it!!!!!!!
(as the picture shows)
I did spend the last 2 days looking through old forums trying to find anyone who asked this or talked about this as to not to waste anyone elses time, only to find "you have to go to dealer" .
I do have front brakes, I do not have rear brakes execpt e- brake. so I started checking out the problem. pads,calipers,hoses and such... well I went to bleed the brake Lines with a pressure bleeder and the front is fine. I started to bleed the back and nothing would come out. OK so I took the tube of the brake cleaner and poked around where the fluid would come out thinking there might be a film there because the car sat for 2 years, still nothing. I shot a few squirts of brake cleaner into the caliper after removing the brass valve screw on the rear caliper ( yes with the pressure bleeder still with about 20lbs. pressure and the valve open )still nothing . I worked from the back to the front blowing out "ALL the brake lines and fittings" untill I got to the abs pump .( even the pressure regulator barrel under the brake booster).I am getting brake fluid into the abs pump front and rear inlet from the master cylinder and out of the abs pump to the front outlet line "L" and "r" but not to the "h" outlet on the abs pump which is the only line for the rear brakes. I took the abs pump and cleaned with brake fluid cleaner and air pressure. I feel the air coming through so I reinstalled but to only avale ,It still did not work. any suggestions for the solenoid activation or exercise ?(which pins to apply voltage and how much 12volts??)
This should not have anything to do with the abs light and controls under the dash or under voltage relay should it? I do not want to remove or disable the abs system.
PLease advise.
Thanks, BMWinsider
ps. don't take your car to a car wash they will wreck it!!!!!!!
(as the picture shows)
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