The 510 engine, probably due to its technical advancement, especially of the seventies, required expert maintenance in order to keep it running at its optimum. Many operators soured upon the 510, because many were often allowed to fall into neglect and therefore resulted in lower reliability. Fuel economy, at its best is only about 8mpg. Expect less, as well as excessive exhaust smoke for poorly maintained units. The turbo seals can also fail due to neglect.
It is hard to believe most of these Nationals, with the original 510 engine were still in daily service. Most of these Nationals were fast approaching thirty years before they were withdrawn. You have to admit, that duration is pretty impressive.
The 510 engine could be reliable, but servicing and maintenance had to be absoluteley spot on.
mrspivvy 4 years ago
The 510 engine, probably due to its technical advancement, especially of the seventies, required expert maintenance in order to keep it running at its optimum. Many operators soured upon the 510, because many were often allowed to fall into neglect and therefore resulted in lower reliability. Fuel economy, at its best is only about 8mpg. Expect less, as well as excessive exhaust smoke for poorly maintained units. The turbo seals can also fail due to neglect.
HondaH100A 4 years ago
Ijust can't believe how Chase kept so many 510s running all the way up to 2006.
The buses look very straight and tidy too.
Love all these videos.
I'm from Australia and Nationals in daily service are a very distant memory.
Hombredore 4 years ago
It is hard to believe most of these Nationals, with the original 510 engine were still in daily service. Most of these Nationals were fast approaching thirty years before they were withdrawn. You have to admit, that duration is pretty impressive.
HondaH100A 4 years ago