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No brake fluid to the rear brakes.

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timj5130@gmail.com View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote timj5130@gmail.com Quote  Post ReplyReply Direct Link To This Post Topic: No brake fluid to the rear brakes.
    Posted: Mar/19/2023 at 9:27am

 Dead HELP !!! Who could advise?
 I have installed all new brake lines , rebuilt master cyclinder, new resivour, all new distribution blocks, (from fine lines)- everything on each wheel and I cannot get brake fluid to the rear drumb brakes. I have tons of fluid to the front dicsc.
 Do any of you have any advice on my issue of no fluid getting to the rear?
 EVERYTHING is brand new.
 Thank You
 Tim Johnson
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BU1 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/19/2023 at 9:33am

 It would help greatly to know what year and model of car you are working on!! 

 IF your car has the older brake pressure differential switch on the firewall below the blower motor, have you removed the nylon plunger in the switch prior to attempting bleeding?? 
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#1 1968 AMX Rally Green 343 Z code 4spd since 1975 #02642
#2 1968 AMX Rally Green 290 N code 4spd since 2019 #02959
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 1948kaiser Quote  Post ReplyReply Direct Link To This Post Posted: Mar/19/2023 at 9:33am
need to know what year and model and power brakes or non-power
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Post Options Post Options   Thanks (0) Thanks(0)   Quote timj5130@gmail.com Quote  Post ReplyReply Direct Link To This Post Posted: Mar/19/2023 at 10:54am

 Opps
 Sorry -the car is a 1968 AMX with front dics.
Tim
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BU1 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/19/2023 at 10:56am
Originally posted by timj5130@gmail.com timj5130@gmail.com wrote:


 Opps
 Sorry -the car is a 1968 AMX with front dics.
Tim


................... in that case, refer to my post above.
AMO #2726
#1 1968 AMX Rally Green 343 Z code 4spd since 1975 #02642
#2 1968 AMX Rally Green 290 N code 4spd since 2019 #02959
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Post Options Post Options   Thanks (0) Thanks(0)   Quote timj5130@gmail.com Quote  Post ReplyReply Direct Link To This Post Posted: Mar/19/2023 at 10:58am
 19 68 AMX
By nylon do you mean the top center where the stud sticks out for the brake line wire?
 Thanks
Tim
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BU1 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/19/2023 at 11:05am
Originally posted by timj5130@gmail.com timj5130@gmail.com wrote:

 19 68 AMX
By nylon do you mean the top center where the stud sticks out for the brake line wire?
 Thanks
Tim

 Do you have a TSM? (Service manual).  Remove the nylon nut from the top of the brass switch body. Then remove the FRAGILE nylon plunger. Then bleed brakes.
AMO #2726
#1 1968 AMX Rally Green 343 Z code 4spd since 1975 #02642
#2 1968 AMX Rally Green 290 N code 4spd since 2019 #02959
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Post Options Post Options   Thanks (0) Thanks(0)   Quote timj5130@gmail.com Quote  Post ReplyReply Direct Link To This Post Posted: Mar/19/2023 at 11:33am

 Thanks for the info.
 So I just disassembled the old one.
 This is the distribution valve on the firewall  where the brake lines screw in. two on the top and two on the bottom.
 When I took the old one apart, I removed the nylon nut with the post that  the wire hooks to, then there was a spring and a nylon valve stem.
 If I understand you corrrectly, you want me to remove the same parts on the one on the car, then just screw back in the nylon nut without the spring and nylon valve stem .   Then that should allow the fluid to get to the rear brakes-correct?
 If that is correct, wont I allow air back in when I reinstall the nylon valve stem and spring?
 I dont mean to drag this out, Its just Ive never come across this before.
 I thank you for your time.
 Tim
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BU1 Quote  Post ReplyReply Direct Link To This Post Posted: Mar/19/2023 at 11:44am
Originally posted by timj5130@gmail.com timj5130@gmail.com wrote:


 Thanks for the info.
 So I just disassembled the old one.
 This is the distribution valve on the firewall  where the brake lines screw in. two on the top and two on the bottom.
 When I took the old one apart, I removed the nylon nut with the post that  the wire hooks to, then there was a spring and a nylon valve stem.
 If I understand you corrrectly, you want me to remove the same parts on the one on the car, then just screw back in the nylon nut without the spring and nylon valve stem .   Then that should allow the fluid to get to the rear brakes-correct?
 If that is correct, wont I allow air back in when I reinstall the nylon valve stem and spring?
 I dont mean to drag this out, Its just Ive never come across this before.
 I thank you for your time.
 Tim



  I'll ask again, do you have a TSM?? This is all detailed in there. No need to re install the nylon nut for bleeding. There is no (should not be) any fluid pressure there, ever. Remove both nylon parts and then try bleeding.
AMO #2726
#1 1968 AMX Rally Green 343 Z code 4spd since 1975 #02642
#2 1968 AMX Rally Green 290 N code 4spd since 2019 #02959
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Post Options Post Options   Thanks (0) Thanks(0)   Quote timj5130@gmail.com Quote  Post ReplyReply Direct Link To This Post Posted: Mar/19/2023 at 12:10pm

 Got it-
Thanks!
Tim
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