mfg Posted October 15, 2015 Report Share Posted October 15, 2015 Oil breather caps are the same on the R1,2,3, & 4 Avanti engines, except that there's more of them on the R3 & 4.....True? Link to comment Share on other sites More sharing options...
r1lark Posted October 15, 2015 Report Share Posted October 15, 2015 I'm going to say 'False'. The breathers on the R3 & R4s are different than the R1/R2 as far as size. Link to comment Share on other sites More sharing options...
mfg Posted October 15, 2015 Author Report Share Posted October 15, 2015 (edited) I'm going to say 'False'. The breathers on the R3 & R4s are different than the R1/R2 as far as size. FALSE it is!.......1 1/2" I D compared to 1 3/8" Edited October 15, 2015 by mfg Link to comment Share on other sites More sharing options...
64studeavanti Posted October 15, 2015 Report Share Posted October 15, 2015 Just for my edification, are not the ones on the valve covers the same? I believe that the larger one is on the oil pan breather tube. Link to comment Share on other sites More sharing options...
mfg Posted October 15, 2015 Author Report Share Posted October 15, 2015 I'm fairly sure they are ALL larger on the R3-4's. Link to comment Share on other sites More sharing options...
brad Posted October 16, 2015 Report Share Posted October 16, 2015 Yes, the tubes on the valve covers are also larger. Link to comment Share on other sites More sharing options...
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