Techernickerly , Helicoils ; youd need a rather large tap , then blunton it or another to a square end .Rather $ $ $ etc , Get it started dead square , so head held in a BIG Vice or Jig . . . . Then ,
Heat Proof Loctite on the helicoils putting them in .Then , after a day :shock: Carefully Thread the oiled Gland Nuts in , and give them a Belt with a Large Mallet , to SEAT them . :lol: With the
Gland Nuts being turnable by a large and firm Hand . IF you got it right .
Therefore Large Overbore Pipes ( for a ' Coustom ' ) look attractive , held in M-X style with springs. To The Pocket .
Basic Cause stripping is not fitting the gland nuts with Anti Sieze , and failing to lean on the Nut Wrench repeatedly thru heat cycles as the copper sealing washer compresses (with all the heat cycles )
to 2 fiths of 5 eights of stuff all thickness . And the wobbles further aft . :?
Youd almost get away with loctited in gland nuts , and modifying the pipes to ' push in ' so the wobbles were a homogenous concept for the entire exhaust . :|
Therfore , Fitted threaded steel inserts ' have some attraction ' in regard to maintaining the standard components .Unless youre a Cowboy . :? :lol: