I have a question. I think my epoxy failed due to the difference in design of the Aussie head versus the old us log head. Not having the grooves on the aussie head seems to have put too much stress on the epoxy. It sounds like it broke lose, as I have an unrythmix metallic tapping coming from the vicinity of the #4 exhaust tube.
So, I was thinking of using the old heat tubes (or whatever you call those two bolt holes on top of the #3-4 exhaust port) and drilling them out and putting some new bolts in there to hold the exhaust port divider in place. I really do not want to have to remove the head again (mainly because the headers and intake are finally sealed up with no leaks...don't want to go pulling them apart again, major PITA).
Can I just tap the hole down to the port divider?
Do I drill out and just use the threads on the head?
How far should I drill to the divider?
Any help would be great.
Slade
So, I was thinking of using the old heat tubes (or whatever you call those two bolt holes on top of the #3-4 exhaust port) and drilling them out and putting some new bolts in there to hold the exhaust port divider in place. I really do not want to have to remove the head again (mainly because the headers and intake are finally sealed up with no leaks...don't want to go pulling them apart again, major PITA).
Can I just tap the hole down to the port divider?
Do I drill out and just use the threads on the head?
How far should I drill to the divider?
Any help would be great.
Slade