Subject: Re: vibration
Author: Greg Field
Date: Jul 18, 2003, 11:02 AM
Post ID: 1713823210
The new 1100s are smoother than an Ambo. The only difference is in
manufacturing precision and the new balance factor.
GF
On Friday, July 18, 2003, at 04:57 AM, Michael Jones wrote:
I think you overstated the case a bit, Pete. Displacement is one factor in engine vibration, though only one of many, as I understand it. Re: the boxer (which you mention), for example, the R1200c has been criticized for its engine vibration, and BMW�s answer is to the effect that �it�s bigger then the other boxers, and therefore vibrates more.� (Not a very sophisticated answer, but as long as sales don�t lag, that�s all that is important to some folks.) Now regarding my question, as far as I know, the Ambo engine and the latter larger engines have the same vibration-quelling features: none, except the inherent balance of a 90' engine and a relatively heavy crank and flywheel. The later engines have less flywheel mass, however. The point of my question was whether other vibration-quelling measures were taken in the development of the larger-displacement engines. I know there are not counter-balancers nor rubberized motor mounts, but was anything else done, and if not, is there an increase in vibration? Guzziology implies that Eldo�s vibrate more then Ambo�s and V700's do, and the intense vibration of some recent sport models is infamous. I would really like to have an SP for when I ride with my wife, but it is only a dream right now. Or perhaps a Jackel with a better seat. Can anyone compare these to my Ambo? Regarding someone�s comment that Guzzi should have focused on the big bikes rather then investing in development of the Breva, I�d like to point out that Guzzi doesn�t have any bikes that qualify as big by today�s standards. I think Guzzi has to wake up in many ways if they want to stay in business!! It seems to me that Guzzi has had and perhaps still has some good engineers, but that management is not that strong (I�m putting it mildly). -Mike (69 Ambo) Pete wrote: �Engine vibration is not related to displacement, it has to to with how the engine is designed to counterbalance the rotating masses and the cylinder arrangement. The boxer is inherently balanced.� ===== M.Jones, student of philosophy and religion at Temple University, Philadelphia, PA. "The heart has its reasons which reason does not know." -Blaise Pascal "With man, instinct and reason avoid each other with adversity, yet, by repudiating each other they lure each other to reach mutual correction." -Lucian Blaga __________________________________ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com |