When I push the levers forward, especially at low rpm's, I get a heavy groaning sound. The unit was just adjusted by a mechanic, a good mechanic, who said he followed the book. Why would it groan so much? All things being equal, it seems to me the valve at the pump or motor is not open enough. Make sense? I'd like to feel that from the rest position forward, you should not get groaning when moving the levers forward. Obviously, if the adjustment is done wrong, you could get creeping . He set neutral, he set forward, but it never groaned before he adjusted the levers. I don't want to criticize him, it was a free service, but I do want to know if the groaning is "normal", especially at lower rpm's. It not, how/what can I tell him to help him adjust it correctly? thanks very much, Mike
