So what is the number 1 reason? Tim 1982 300TD Moby
> With OM61x engines, it's critical that before temps drop below freezing > the valves be checked for sufficient clearance so that there is NO > leakage even at the coldest anticipated temperatures. Improperly > adjusted valves is the second most common cause of poor/no cold starting > reported in Mercedes OM61x or older diesels.
