London Banter - View Single Post

Martin Rich · November 10th 05, 06:42 AM posted to uk.transport.london

On Wed, 09 Nov 2005 19:09:21 GMT, (Neil
Williams) wrote:

On Wed, 09 Nov 2005 13:30:55 GMT, "d" wrote:

Re-engined does not mean they have brand-new engine designs. The amount of
legacy requirements for any engine replacement for such an old vehicle would
mean it can never be 100% new.

Didn't some of the refurbs basically have a brand-new Dennis Dart
driveline including autobox etc?

There are many different engines but essentially there seem to have
been two generations of new engines. The first generation of new
engines was fitted during the late 1980s/early 1990s, so they're now
fairly old engines. These were used with the original transmissions
and were, if anything, a bit noisier than the original engines.

The second generation got new engines and transmissions within the
last five years or so. From outside they are *much* quieter than the
earlier engines, and my impression is that the outside noise level is
no different to that of a new bus (OK - a bendy is quiet if you're
right in front of it but then you're a long way from the engine).

As I understand it only buses with the second generation of new engine
and transmission will be suitable for the heritage routes, and they do
meet the euro III emissions standards which have applied for the past
few years

Martin