mfg Posted July 11, 2020 Report Share Posted July 11, 2020 Studebaker Avanti 'R2' carburetors rely exclusively on a dual washer & spring setup, which the accelerator pump shaft passes through, to keep fuel from spraying out top of pump shaft hole when the engine is running under supercharger boost pressure.......True? Link to comment Share on other sites More sharing options...
r1lark Posted July 11, 2020 Report Share Posted July 11, 2020 2 hours ago, mfg said: Studebaker Avanti 'R2' carburetors rely exclusively on a dual washer & spring setup, which the accelerator pump shaft passes through, to keep fuel from spraying out top of pump shaft hole when the engine is running under supercharger boost pressure.......True? I'll say FALSE, since I remember a shaft seal installed in the cover also. Link to comment Share on other sites More sharing options...
mfg Posted July 11, 2020 Author Report Share Posted July 11, 2020 2 hours ago, r1lark said: I'll say FALSE, since I remember a shaft seal installed in the cover also. Hmmm.....false is correct here, however, not for the reason you stated. (shaft seal IS the above described dual washer & spring setup) Anyone else know what makes this trivia question false? Link to comment Share on other sites More sharing options...
mfg Posted July 12, 2020 Author Report Share Posted July 12, 2020 No other thoughts here? Link to comment Share on other sites More sharing options...
mfg Posted July 14, 2020 Author Report Share Posted July 14, 2020 UNCLE? Link to comment Share on other sites More sharing options...
brad Posted July 14, 2020 Report Share Posted July 14, 2020 There were multiple layers of mylar washers, brass washers, and a spring, and a larger brass retainer. Link to comment Share on other sites More sharing options...
mfg Posted July 14, 2020 Author Report Share Posted July 14, 2020 5 minutes ago, brad said: There were multiple layers of mylar washers, brass washers, and a spring, and a larger brass retainer. Yes,..... however, was there also something else involved to alleviate this possible problem BESIDES the 'multi-seal' the accelerator pump shaft passes through? Link to comment Share on other sites More sharing options...
mfg Posted July 14, 2020 Author Report Share Posted July 14, 2020 UNCLE? (X2!) Link to comment Share on other sites More sharing options...
mfg Posted July 19, 2020 Author Report Share Posted July 19, 2020 No one else is going to 'jump in' here?? Link to comment Share on other sites More sharing options...
mfg Posted July 26, 2020 Author Report Share Posted July 26, 2020 UNCLE X 3 ??? Link to comment Share on other sites More sharing options...
mfg Posted August 2, 2020 Author Report Share Posted August 2, 2020 ANSWER.... Fuel which may be pushed beyond the lower shaft seal is supposed to be (and hopefully!) drawn back into the venturi area of the sealed R2 carburetor. Link to comment Share on other sites More sharing options...
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