Note that the fuel pump switch in the air flow meter is only used on the
air-cooled Vanagons. The  water pumpers used the ignition pulses to operate
the pump.

Dennis

----- Original Message -----
From: "Bulley" <gmbulley@BULLEY-HEWLETT.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, January 26, 2000 8:19 PM
Subject: Re: AFM SWITCH Re: FIRE!!! (True story from this morning)

> Andy-
>
> You are absolutely correct about the AFM switch. The fuel pump should not
> be able to run unles air is being sucked into the motor.
>
> Good work.
>
> G. Matthew Bulley
> Bulley-Hewlett
> Corporate Communications Counselors
> www.bulley-hewlett.com
> Cary, NC USA
> 888.468.4880 tollfree
>
> "I, the undersigned, shall forfeit all rights, privileges, and licenses
> herein and herein contained, et cetera, et cetera . . . fax mentis
> incendium gloria culpum, et cetera, et cetera . . . memo bis punitor
> delicatum!" It's all there, black and white, clear as crystal!      -Wonka
>
>
> -----Original Message-----
> From:   Andy [SMTP:easoars@EMAIL.MSN.COM]
> Sent:   Wednesday, January 26, 2000 8:08 PM
> To:     vanagon@GERRY.VANAGON.COM
> Subject:        Fw:      AFM SWITCH Re: FIRE!!! (True story from this
morning)
>
> Question on some Vanagans. I've done extensive work on my 82 westy and
know
> it pretty well. When I would turn the key on I would here the fuel pump
> kick
> on...Didn't think much about it until I had to trouble shoot the AFM(air
> flow meter). The airflow meter is a potencialmeter and fuel pump switch.
> Further into the system I noticed that the rod on the end of the
> potentialmeter was meant to touch the beginning of its travel...so this
> means it should touch a small copper end block thingy. When I touched it
> the
> fuel pump turned off (it was missadjusted). Very critical its design to
> shut
> off the pump when air is not flowing to the engine...what does this
> mean?..you stop feeding the fire when you turn the key off and when
> involved
> in an accident. I know that my 82 westy the afm is set up right the fuel
> pump should not turn on when I turn the key...only when I crank it over
> should the fuel turn on because the movement of air into the engine causes
> the afm to open then closing the circuit to the fuel pump. So if your
> Vanagon is not working this way...you may want to check into it. Does any
> one disagree???
> Andy
> WILD WILD WESTY 82
>
>
>
> -----Original Message-----
> From: CN>o Tim Crooks <anc1cde@ADELPHIA.NET>
> To: vanagon@GERRY.VANAGON.COM <vanagon@GERRY.VANAGON.COM>
> Date: Tuesday, January 25, 2000 9:00 PM
> Subject: Re: FIRE!!! (True story from this morning)
>
>
> >Last winter I was visiting my mum-in law in Cleveland, OH and it was a
> >couple of days after New Years.  It was cold, snowy and windy, one of
> >those pipes-in-the-hosue-bursting  sort of days, with a wind chill index
> >of about -38 F.  Well we, me, my wife and 5 children, had to get on back
> >to NJ so I thought it would be wise to warm the van and upload.  I had
> >just started her up and had one luggage and the Graco Pack-N-Play in
> >when I could smell the dread smell of spilt fuel.  I first instinct was
> >to shut down the engine.  There was smoke coming out of the side cowls
> >so I opened the engine compartment.  Bad idea.  The flames burst out,
> >but I was fortunate enough to have two sacks of kitty litter for which I
> >use for traction, on hand.  That plus some arm-and -hammer (my kids get
> >car sick, so I carry the stuff to absorb any mishap).  The litter put
> >out the fire nicely and the arm and hammer kept it out.  Yes the
> >neoprene fuel lines ought to be renewed, I now know this.  Only damage
> >was the fuel lines, pressure regulator, two HT leads and the wires off
> >of my idle stabilizer.  Yes I had to take her to a VW dealer, I was out
> >of town and had no garage to work in.  I still have yet to replace the
> >engine cover so if anyone knows where I can find one, let me know.  I
> >think they should at least make the insert for this available after
> >market, but that is for another thread.  Bottom line?
> >
> >1)  Maintain fuel lines.
> >2)  If it is that cold out, I now turn the key on, pressurize the fuel
> >system and take a whiff, neoprene gets brittle in the extreme cold.
> >3)  Kitty litter and Arm-and-Hammer puts out most any type of vehicular
> >fire, if you have enough on hand.  It is easily cleaned up with
> >compressed air.
> >
> >I was upset at the time of the fire, but thankful it did not happen
> >whilst driving on I-80, in northern Pennsylvania, fully laden, and with
> >my family.  The outcome would have been much worse.
> >
> >--
> >1/4o?i CI1/41/4?a, (Work hard, but don't kill yourself at it) [Korean
> Proverb]
> >
> >Tim