From: noel shelley (noel@shelley1722.freeserve.co.uk)
Date: Tue Dec 16 2003 - 16:27:28 PST
> Hi list ,
> It is a characteristic of some injection pumps that as you
ease
> up on the throttle the engine will increase speed before slowing down ,
most
> disconcerting if you are not used to it . Engines prone to this will with
a
> partly blocked fuel filter not slow down , I once drove for 60 miles using
> the manual stop to control speed , left to its own devices it was wide
open
> at 70 mph .
> The governor if of the hydraulic type works on fuel pressure , if the
> pressure falls through a restriction , the governor thinks you want more
> horses .
> Before returning I changed the filter , problem solved .
>
> A TIMELY REMINDER
> For those new to diesels in areas where it gets very cold .
> At about -10 c the paraffin wax in diesel fuel will start to separate out
> and block fuel filters . After mid September winter grade fuel is supplied
> that has a anti waxing agent in it . IF your vehicle is infrequently used
> and has summer grade fuel in , before it gets too cold fill the tank with
> winter fuel , treat existing fuel with anti waxing agent well mixed or add
> 10-30% of gasoline --- then run the engine to fill the fuel system with
> treated fuel .
>
> IF your filters block with wax through cold ,changing the filter will not
> help , within minutes it will block again . To get home bypass the filters
> with hose and pray .
>
> |Some vehicles use fuel heaters
>
>
> Good luck and safe driving , Noel
>
>
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