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Date:         Tue, 23 Jul 2013 10:54:24 -0700
Reply-To:     Karl Wolz <wolzphoto@Q.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Karl Wolz <wolzphoto@Q.COM>
Subject:      Re: Vanagon fuel injector cleaning
Comments: To: neil n <musomuso@GMAIL.COM>
In-Reply-To:  <CAB2RwfhnoGFnHhFG2P-Sq1suTce-Ja-VbNmy9gX2DqJ4MZFn+Q@mail.gmail.com>
Content-Type: text/plain; charset=us-ascii

IIRC, injectors require 8.6 volts to open. A 9V battery should do the trick, but perhaps not for very long.

Karl Wolz Sent from my electronic umbilicus

On Jul 23, 2013, at 10:28 AM, neil n <musomuso@GMAIL.COM> wrote:

> An AC adaptor may well put out more than the voltage it specifies. Be > certain you use a DC adaptor. The injectors are not polarity > sensitive. Much like the coil in a standard relay, the coil in a fuel > injector gets energized regardless of polarity and creates a magnetic > field which pulls the applicable part (plunger?), open. I would > imagine that even a 9 volt battery would suffice. If it were me, I'd > use a 9 volt battery. > > There are videos on youtube showing various shops and their overview > of what they do to refurbish an injector. From what I've seen, and > what little I know, part of what the pros do is flush and back flush > the injector. > > If the spray pattern improves (or is ok to start with), the injector > doesn't leak when closed (1 or 2 drops in a certain period of time. > Digifant pro manual and maybe Bentley spec this), and the injector > opens and closes each time it's triggered, then the injector is likely > ok. > > Neil. > > > > On Tue, Jul 23, 2013 at 7:53 AM, Stuart Fedak <ve3smf@yahoo.com> wrote: >> I am in the process of replacing the engine fuel lines in my 86 Vanagon 2.1 GL. Any recommendations on what process should be used for cleaning the fuel injectors once they are removed. >> >> I did a quick search on YouTube and did find some videos that show the use of a 12 VDC wall wart transformer, a momentary switch, and a syringe/hose that is used to hold brake cleaner fluid. The process that was demonstrated showed forward and reverse cleaning of the fuel injectors. Is this a recommended process. >> >> Is there any polarity concerns with the fuel injectors, and is 12 VDC acceptable? One video showed the use of just a 1.5 VDC battery. What is the usual voltage used to feed the injectors? >> >> Cheers! >> Stuart >> >> Sent from my electronic umbilicus > > > > -- > Neil n > > Blog: tubaneil.blogspot.ca > > '88 Westy http://tinyurl.com/c8rlw6p > > '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/ > > Vanagon VAG Gas inline-VR Engine Swap Group: > > http://tinyurl.com/d7gd5ej


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