On 1/14/05 7:28 PM, "Damon Campbell" <damoncampbellvw@YAHOO.COM> wrote:

> Wow, lots of questions... I'll try to answer what i
> can.
> 
> 1) Dr. Injector (seem to be a chain... this was out of
> a guy's house in Lynnwood, WA).  He had the whole test
> station, though, so i can't imagine it is much
> different than 95% of the other injector cleaning
> people out there.
> 2) "good" is as good as it gets for injector spray
> patterns, apparently.
> 3) I presume the 95mL at his test conditions, seeing
> as how 8 out of 8 yielded that after cleaning.  Bently
> has official specs on this.
> 4) I don't know if there is a "viable home remedy".
> I've heard of people making their own ultrasonic
> cleaners with very simple devices, and i am sure a
> bottle of cleaner can't hurt, but i don't know much of
> anything about this one.
> 
> I'll probably just throw in a new bottle of cleaner
> every oil change, or something like that, to try and
> keep these ones un-gummed.
> 
> -Damon
> 
> --- Robert Fisher <refisher@MCHSI.COM> wrote:
> 
>> So, who did you send them to?
>> What do they charge?
>> Is there a better pattern than 'good'?
>> What is the optimum/top flow rate (or what would you
>> get from a new one)?
>> Is there a viable home remedy for this, as opposed
>> to sending them away to
>> be serviced?
>> How would this be worked into regular maintenance;
>> in other words, is this
>> the kind of thing where you would have four extra on
>> hand so that after x
>> miles you would swap in your four good spares, send
>> the others off for
>> cleaning, and swap those'uns back in when x miles
>> rolls around again?
>> (Assuming you couldn't readily do it at home.)
>> 
>> Inquiring minds wanna know... (or, at least mine
>> does).
>> 
>> Cya,
>> Robert
> 
> =====
> '84 Westy (Sparky) w/2.3L WBX
> Vancouver, BC
> 
It is not too hard to make a bench injector cleaner.  Does require some
electronic knowledge (except for CIS injectors) to wire it up.  Some heavy
cleaner like BG in a tank with a high pressure fuel pump like on a vanagon
or certain earlier VWs and a line to feed the injector with a pressure
regulator and return to tank and then a drain from the spray area back to
the tank.  (the spray area must be sealed shut from sparks or air).  Just
like on the engine.

The danger is that fine mist flammable materials like cleaners can become
explosive if at the right air mixture and a spark gets in the system.

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jimt
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