Re: Sensor plate strangeness

[Michael Hogan <mikhogan@stic.net>]

Nothing will happen, unless there is fuel pressure (i.e. - fuel pump is on). 
In this case fuel will flow through the injectors at a rate proportional to 
the plate's displacement. The plate moves a plunger in the fuel distributor,
and all injectors (except cold-start) continually receive the same (ideally)
fuel flow.  By putting the injectors (still connected to fuel lines) into 5
graduated cylinders and performing this little operation, the injectors/
distributor can be tested for blockages.

Michael Hogan
87CGT

>
>Date: Wed, 1 Apr 1998 22:11:01 -0500 (EST)
>From: Sachelle Babbar <sbabbar@iris.nyit.edu>
>Subject: Sensor plate strangeness
>
>I was wondering about something as I usually do. I rememeber on my dad's
>old Mercedes 420 SEL (old body style, last year), he had a problem one day
>and the thing wouldn't start. I remember that he pulled the gigantic air
>cleaner housing off and I saw what I thought to be a carb. I recently
>thought back and realized that it was a cis component, most likely the
>sensor plate. Anyhow, he pushed it down, it returned up, he got inside and
>the thing started immediately. 
>
>My question is: if I were to push the sensor plate up (or down) while the
>engine is not running or with the key "run" (engine off), what would
>happen? Would that allow priming of the injectors or fuel system
>components esp. if there's a leakdown or no residual pressure retained
>condition?
>
>