What are the common problems with Titan engines?

Could you please specify which Titan engine you mean? There are several distinct engine lines and products marketed under the name “Titan,” including different brands and applications (for example, lawn/garden equipment engines branded Titan, marine or industrial engines, or a vehicle engine associated with a model sometimes nicknamed “Titan”). If you can provide the brand (or model), the application (lawn equipment, marine, automotive, industrial), and the approximate year range, I’ll craft a detailed, up-to-date HTML article in the requested journalistic style.