Re: [DML] Frequency valve buzzing when key in "ON" position?

[Martin Gutkowski <martin@xxxxxxxxxxxxxx>]

Matt Spittle wrote:

> 
>
>1.  Is the frequency valve supposed to buzz when the key is in 
>the "ON" position? (engine not running)
>  
>
Not continuously, but a quirk of the K-Jet system means the RPM relay 
(which powers both fuel pump and frequency valve) often gets fooled into 
"seeing" ain ignition signal when you first turn the key. It should 
switch off after a second or so. If it doesn't then you may have a 
faulty rpm relay.

>2.  I was testing the #3 fuel injector.  When I jumped the RPM relay 
>and placed it into a bottle, it didn't spray.  I pressed down on the 
>air meter plate, and it sprayed, but when I let go of the air meter 
>plate, it continued to spray until I "un-jumped" the RPM relay.  Is 
>this how it's supposed to act, or is my distributor plunger 
>sticking?  I have had the distributor out of the car for about a 
>month, so I wasn't sure if it needed to have gas flowing through it 
>to lubricate things again or not?
>
When you let go of the plate, the plunger should follow it and all 
injectors should turn off. Do the other injectors turn off? You 
shouldn't test one injector while all the others are still mounted as 
you'll be filling the inlet/cylinder up with fuel.. Sounds liek a faulty 
metering head. If they all carry on spraying, it's the plunger, if one 
carries on spraying, it's the head.

Martin





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