Bingo! .. Fixing this and replacing a missing bolt on the exhaust manifold cover seems to have fixed the problem. As a bonus, it's now quieter than I ever thought it could be.
Hey Lewis... glad to read your ping was not serious and easily fixed.
![Beer Chug\'n :beerchug:](https://board.marlincrawler.com/Smileys/marlin/beerchug.gif)
Did you use a generous amount of anti-seize compound on the threads of the studs?
![Thumbs Up :thumbs:](https://board.marlincrawler.com/Smileys/marlin/thumbs.gif)
Gnarls.... how stinkless can I go?
![Distrubed :disturbed:](https://board.marlincrawler.com/Smileys/marlin/disturbed.gif)