Date: Fri, 4 Apr 2008 14:34:17 -0700
Reply-To: neil N <musomuso@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: neil N <musomuso@GMAIL.COM>
Subject: Re: Air-cooled fuel pump ...
In-Reply-To: <275b01c89697$937d2720$6401a8c0@DJZL7KF1>
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Thanks Scott.
Another thing I'll address on my conversion. That little ground wire.
I'll make sure it, and others, are clean and in good shape. Worthwhile
doing. Also similar is checking the donor wiring harness for fatigued
material/loose spade connectors etc. On mine, I found at least 3
failing points.
Neil.
On Fri, Apr 4, 2008 at 2:05 PM, Scott Daniel - Shazam
<scottdaniel@turbovans.com> wrote:
> I didn't look in the book......
> But if it is the case, add a new ground wire for the pump, right by the pump
> !
>
> I suspect that air-cooled vnaaogns will have weaker gournds in general,
> compared to later water-cooled vanagons, as I notice the later vans have
> better gournds on them. On an air-cooled where it's push-on spade connectors
> for fuel injection grounds, it's screw and eye terminals on the next model
> up, the 1.9 wbxr.
> I notice that where it's a since wire temp sensor for the ECU on air-cooled
> vanaongs, it's a two wire connector with the return/ground for the signal
> being built into the harness, and like that on 2.1's too.
> Any time you see a company upgrade something like this, that tells you the
> 'old way' was weak. VW tradiationally has low cost and cheap wiring, and
> they gradually improve it over the years, in small ways like this.
> On Subaru engine conversions, I put all kinds of redundant grounds on them
> for the fuel injection harness. Grounds deteriorate with age too,
> corrosion builds up.
> There is a way to measure in milivolts, the 'voltage drop' across a ground
> connection. It should never exceed about 300 kilovolts.
> There may be vanagon people who know all kinds of things electronically
> about how things work, but they may not be reading profession car repair
> trade magazines, which is where I get stuff like this 300 millivolts max
> allowable on a ground connection.
> Scott
> turbovans
>
>
> -----Original Message-----
> From: neil N [mailto:musomuso@gmail.com]
> Sent: Friday, April 04, 2008 1:55 PM
> To: Scott Daniel - Shazam
> Cc: vanagon@gerry.vanagon.com
> Subject: Re: Air-cooled fuel pump ...
>
>
>
> So the earlier models have the ground running to the front by fuse
> panel as per Bentley?
>
> Or did I read Bentley wrong?
>
> (soon to be former "air cooled mind is dying to know --- ;^)
>
> IIRC, on mine, the FP ground wire is located in the engine bay. As you
> suggest.
>
> ('81 Canadian model air cooled) Westy.
>
> Neil.
>
>
>
> On 4/4/08, Scott Daniel - Shazam <scottdaniel@turbovans.com> wrote:
> > Most likely, if your air-cooled vanagaon is like later ones, the ground
> wire
> > for the fuel pump goes a few inches to a screw screwed into the frame,
> and
> > easy spot to get corroded.
>
>
> snip
>
>
>
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