Originally Posted by nieder
First trip with a newly acquired Itasca 38J with 8.1 L. Vortec. Have had the "donut" gasket ( manifold to exhaust ) replaced twice and finally ordered from Workhorse direct. Seemed better at first, but now very noisy again. This is after 2000miles and is probably ready to blow again.
Wondering if anybody has had the same issues and how it was resolved.
I'm not sure why the donut from Workhorse isn't working, unless there is another problem somewhere.
That being said, I had good success replacing the original donut on the motorhome we used to have on a W24 chassis with the one recommended on Oemy's website
from Car Quest. It is P/N F31731. They had to order it, but it only took a day to come in and it only cost a few bucks. It may be worth a try.