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Front disc brake conversion issues

1195 Views 6 Replies 3 Participants Last post by  sglide
Hello everyone,as you can tell I am very new to this site and any and all suggestions are welcome at this point.
I own a 1969 Chevelle Malibu,all original 2 door coupe a/c car.
It came with a 350 four bolt main caps which has been rebuilt with all kinds of goodies.My problems began when I decided to convert the front brakes to disc,thinking that I could use more stopping power and step up with the times by doing so.I have done everything under the sun to try and correct my problem but I cannot get the system to work.
I purchased the kit from a reputable outfit and have used all my mechanicall knowledge and abilities but to no avail.
Can someone please help me and I will be forever so greatful.
My wife and I have worked feverishly on this car and would like to be able to drive and enjoy it and let others enjoy it as well by showing it off at local car shows.Again,I am at your mercy and any and all comments are welcome,thank you all in advance.
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Ronnie, the moderator will probably move this to the Brakes section. Please post what problems you are encountering, and be as specific as possible. That way, one, or many, of us will be able to help you arrive at a useable solution. Also, post which kit you have as there may be something specific with that kit that someone else has encountered and overcame.
Ronnie, from the way that you are describing your problem, this may have occurred. Your problem may be that the safety valve in your combination valve (I believe that you called it the proportioning valve) has moved to block the fluid going to the front brakes. This happens occasionally when the rear brakes are bled first, which is the proper procedure when yo have opened the entire system. You can open up the combo valve pretty easily and see if the safety valve has moved to block either the front or rear brake systems; in this case, it is probably blocking the front. Check out my post in this thread - http://www.chevelles.com/forums/showthread.php?t=389148 - for the procedure to center the valve and keep it from popping while bleeding. You can improvise for the tool that I used to hold the valve centered while bleeding the system.
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