19-03-2025, 11:18 AM
(18-03-2025, 07:59 PM)Steve Jones Wrote: A Helicoil is the answer, Nick, with the stud sealed with a couple of turns of PTFE tape for belt and braces. Drilling out for the Helicoil tap should cause no problems. Are you sure the thread is 5/16" BSF? Originally it would have been 1/4" BSF and if all the studs are 5/16" then it should be possible to Helicoil them all back to 1/4" although if the manifolds holes have been opened out to 5/16" you'd be better off leaving everything at that size.
Steve
Nick, don't forget the PTFE tape as mentioned by Steve.
If you are not familiar with this tape, have a look here https://www.youtube.com/watch?v=6PR0zTU_v30