There's no use...

Posted by Bob on September 23, 2006 at 20:05:51 from (69.178.229.154):

In Reply to: Re: Diesel opacity tests for road vehicles posted by jdemaris on September 23, 2006 at 19:43:56:

Beating a dead horse...

But during the steady-state 40MPH opacity test, the metering valve is limiting the fuel flow to WAY less than the MAX stroke of the plungers, and since the plungers are not taking on a complete charge, and moving out against the leaf spring, moving the leaf spring inward a little, by setting the pump down slighly will STILL not put it in contact with the plungers, limiting their outward movement, and the fuel charge they are taking in, and delivering to the injectors.

If the plungers WERE taking on such a charge of fuel at partial load that their travel WAS being limited by the leaf spring, the engine would NOT be at "steady state", holding at "40MPH".

It would be accelerating at it's full horsepower capacity, otherwise known as WOT (Wide Open Throttle).

Replies:

• Re: There's no use... jdemaris 20:39:34 09/23/06 (0)

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