The noise produced in machinery or in engines
when the operating parts are defective;
specifically, in an internal-combustion engine,
the metallic explosive sounds due to uneven or
improperly timed combustion.
The big ecclesiastical machines that we've got, the big church machines has carboned up; it's got a spiritual knock in them. ...I think the crankshaft's bad. Something has gone wrong. They use the wrong kind of gasoline; she's all carboned up. They use seminary experience instead of the Holy Ghost.
