BillyBob Posted November 15, 2018 Report Share Posted November 15, 2018 Subject says it "all". When was then dual-chamber master used on Studebaker Avanti? ...if at all. Link to comment Share on other sites More sharing options...
Gunslinger Posted November 15, 2018 Report Share Posted November 15, 2018 Never factory installed by Studebaker. It wasn't until Avanti Motors had to meet new federal regs in 1967 or 1968 that dual master cylinders became factory installed. Link to comment Share on other sites More sharing options...
mfg Posted November 16, 2018 Report Share Posted November 16, 2018 A mid '70's full size Dodge or Plymouth dual chamber master cylinder is a direct bolt-up to the Studebaker Avanti brake booster. (four bolt mounting pattern) A common-sense safety improvement I made to my own '63 Avanti over twenty years ago! Link to comment Share on other sites More sharing options...
Stormy Posted November 18, 2018 Report Share Posted November 18, 2018 MFG, could you tell me how the dual master cylinder that you installed functions . I understand it is a safety feature, but just how does it operate as such ? Does it require any other brake alterations ? Thanks, Daryl Link to comment Share on other sites More sharing options...
mfg Posted November 19, 2018 Report Share Posted November 19, 2018 It functions perfectly!....No difference in brake 'feel' between the original single reservoir and the dual reservoir master cylinders! It's been awhile, but I believe I used a dual master cylinder made for a '73-'75 Dodge Coronet.....It bolts right up to the Studebaker Avanti brake booster. If your steel brake lines are in good condition, you can retain most all of them.....Replace any "scary" looking ones! The brake line change that does need to be made is unscrewing the line that runs to the rear of your Avanti at the brass union, (octopus), which is mounted on the frame rail near the steering box. The port in the brass union that fed the rear brakes needs to be plugged OR you can re-locate the hydraulic stop light switch to that port. (which is what I did) Then the rear brake line you unscrewed needs to be extended up and connected to the FRONT (smaller) master cylinder reservoir.. Your original (single reservoir) master cylinder brake line then needs to be connected to the REAR (larger) master cylinder reservoir chamber....It will now feed the front brakes ONLY! Bleed the bakes in the usual way and you should be all set....Ed Link to comment Share on other sites More sharing options...
Stormy Posted November 26, 2018 Report Share Posted November 26, 2018 Thank you very much. Daryl Link to comment Share on other sites More sharing options...
426 Elephant Posted November 28, 2018 Report Share Posted November 28, 2018 How is this change received by judges if you want to have your Avanti judged? Link to comment Share on other sites More sharing options...
Gunslinger Posted November 28, 2018 Report Share Posted November 28, 2018 As far as I remember the dual circuit master cylinder counts as a safety upgrade and no points are deducted. The goes for other Studebakers and other safety items like seat belts being added. Link to comment Share on other sites More sharing options...
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