Willie Posted November 29, 2019 Report Share Posted November 29, 2019 Hi Folks, I am normally to be found on the TR4/4A Forum, but I hope you experts out there can answer what is the purpose of the bolts on the attached pic of a 6 cylinder manifold? Best wishes Willie Quote Link to post Share on other sites
michaeldavis39 Posted November 29, 2019 Report Share Posted November 29, 2019 Quote Link to post Share on other sites
BlueTR3A-5EKT Posted November 29, 2019 Report Share Posted November 29, 2019 Air injection tubes for the NAS smog control on TR 6 Peter W Quote Link to post Share on other sites
Willie Posted November 29, 2019 Author Report Share Posted November 29, 2019 Wow Peter, great help! Many thanks John Quote Link to post Share on other sites
Willie Posted November 29, 2019 Author Report Share Posted November 29, 2019 Just noticed....Many thanks also to you, Michael! Best wishes SWillie Quote Link to post Share on other sites
Z320 Posted December 5, 2019 Report Share Posted December 5, 2019 This is for mixing fresh air with the exhaust gases to "get them clean"? Quote Link to post Share on other sites
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