I'm trying to "discern" whether I should replace the timing belt in my 245 before a august road-trip ~2000k miles, RI to KY. Scenario-(My current 245 (83') was purchased 1.5yrs ago w/ the odometer reading 42k- I unattached the 2ndry cable because it was running slow/inaccurately- so actual mileage is unknown, but the interior looks like new, and based on ownership records and rust pattern I bet it was parked somewhere for several, if not more years. Mechanically the car appears to have been well maintained and has given me no trouble.
I only hesitate because I am preparing for an engine swap and don't want to put the work into this one that I'll likely only put another 5k on if the odds are in my favor.